US20160122320A1 - Useful combinations of monobactam antibiotics with beta-lactamase inhibitors - Google Patents
Useful combinations of monobactam antibiotics with beta-lactamase inhibitors Download PDFInfo
- Publication number
- US20160122320A1 US20160122320A1 US14/993,747 US201614993747A US2016122320A1 US 20160122320 A1 US20160122320 A1 US 20160122320A1 US 201614993747 A US201614993747 A US 201614993747A US 2016122320 A1 US2016122320 A1 US 2016122320A1
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- US
- United States
- Prior art keywords
- compound
- oxo
- amino
- diazabicyclo
- heptane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000003242 anti bacterial agent Substances 0.000 title abstract description 57
- 229940088710 antibiotic agent Drugs 0.000 title abstract description 57
- 239000003781 beta lactamase inhibitor Substances 0.000 title abstract description 31
- 229940126813 beta-lactamase inhibitor Drugs 0.000 title abstract description 31
- WZPBZJONDBGPKJ-VEHQQRBSSA-N aztreonam Chemical compound O=C1N(S([O-])(=O)=O)[C@@H](C)[C@@H]1NC(=O)C(=N/OC(C)(C)C(O)=O)\C1=CSC([NH3+])=N1 WZPBZJONDBGPKJ-VEHQQRBSSA-N 0.000 title abstract description 23
- 229960003644 aztreonam Drugs 0.000 title abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 399
- 239000008194 pharmaceutical composition Substances 0.000 claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims description 137
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 108
- 239000001257 hydrogen Substances 0.000 claims description 92
- 229910052739 hydrogen Inorganic materials 0.000 claims description 92
- 229910006069 SO3H Inorganic materials 0.000 claims description 74
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 claims description 73
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 70
- 239000002253 acid Substances 0.000 claims description 41
- 150000002431 hydrogen Chemical class 0.000 claims description 41
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 31
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 31
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 21
- 229910052702 rhenium Inorganic materials 0.000 claims description 14
- 239000000546 pharmaceutical excipient Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 27
- 229940126085 β‑Lactamase Inhibitor Drugs 0.000 abstract description 19
- 241000894006 Bacteria Species 0.000 abstract description 14
- WZPBZJONDBGPKJ-UHFFFAOYSA-N Antibiotic SQ 26917 Natural products O=C1N(S(O)(=O)=O)C(C)C1NC(=O)C(=NOC(C)(C)C(O)=O)C1=CSC(N)=N1 WZPBZJONDBGPKJ-UHFFFAOYSA-N 0.000 abstract description 10
- UIMOJFJSJSIGLV-JNHMLNOCSA-N carumonam Chemical compound O=C1N(S(O)(=O)=O)[C@H](COC(=O)N)[C@@H]1NC(=O)C(=N/OCC(O)=O)\C1=CSC(N)=N1 UIMOJFJSJSIGLV-JNHMLNOCSA-N 0.000 abstract description 3
- 229960000662 carumonam Drugs 0.000 abstract description 3
- VAMSVIZLXJOLHZ-QWFSEIHXSA-N tigemonam Chemical compound O=C1N(OS(O)(=O)=O)C(C)(C)[C@@H]1NC(=O)C(=N/OCC(O)=O)\C1=CSC(N)=N1 VAMSVIZLXJOLHZ-QWFSEIHXSA-N 0.000 abstract description 3
- 229950010206 tigemonam Drugs 0.000 abstract description 3
- 125000000217 alkyl group Chemical group 0.000 description 169
- -1 cephamycinases Proteins 0.000 description 145
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 142
- 238000000034 method Methods 0.000 description 130
- HZZVJAQRINQKSD-UHFFFAOYSA-N Clavulanic acid Natural products OC(=O)C1C(=CCO)OC2CC(=O)N21 HZZVJAQRINQKSD-UHFFFAOYSA-N 0.000 description 125
- HZZVJAQRINQKSD-PBFISZAISA-N clavulanic acid Chemical compound OC(=O)[C@H]1C(=C/CO)/O[C@@H]2CC(=O)N21 HZZVJAQRINQKSD-PBFISZAISA-N 0.000 description 125
- 229940090805 clavulanate Drugs 0.000 description 122
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 122
- 125000001424 substituent group Chemical group 0.000 description 111
- 125000003545 alkoxy group Chemical group 0.000 description 106
- 229910052736 halogen Inorganic materials 0.000 description 100
- 150000002367 halogens Chemical class 0.000 description 100
- 125000003282 alkyl amino group Chemical group 0.000 description 99
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 96
- 125000004663 dialkyl amino group Chemical group 0.000 description 77
- 239000007858 starting material Substances 0.000 description 77
- 238000005160 1H NMR spectroscopy Methods 0.000 description 74
- 0 [1*]N1C(=O)C([5*])(CC(=O)/C([6*])=N\O[4*])C1([2*])[3*] Chemical compound [1*]N1C(=O)C([5*])(CC(=O)/C([6*])=N\O[4*])C1([2*])[3*] 0.000 description 68
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 63
- REQJVNLCTXHOHL-DMTCNVIQSA-N (1r,5s)-6-oxo-7-aza-4-azoniabicyclo[3.2.0]heptane-7-sulfonate Chemical compound C1CN[C@@H]2C(=O)N(S(=O)(=O)O)[C@@H]21 REQJVNLCTXHOHL-DMTCNVIQSA-N 0.000 description 52
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 51
- 238000002360 preparation method Methods 0.000 description 47
- UGVZZENVNVKSRR-UHFFFAOYSA-N CCC1=CC(=O)C(O)=CN1O Chemical compound CCC1=CC(=O)C(O)=CN1O UGVZZENVNVKSRR-UHFFFAOYSA-N 0.000 description 45
- 239000011734 sodium Substances 0.000 description 45
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 42
- 125000001072 heteroaryl group Chemical group 0.000 description 40
- FKENQMMABCRJMK-RITPCOANSA-N sulbactam Chemical compound O=S1(=O)C(C)(C)[C@H](C(O)=O)N2C(=O)C[C@H]21 FKENQMMABCRJMK-RITPCOANSA-N 0.000 description 38
- 229960005256 sulbactam Drugs 0.000 description 38
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 36
- 238000000119 electrospray ionisation mass spectrum Methods 0.000 description 31
- 230000003115 biocidal effect Effects 0.000 description 30
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 30
- 239000000243 solution Substances 0.000 description 30
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 29
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 28
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 27
- 238000006243 chemical reaction Methods 0.000 description 27
- 239000003112 inhibitor Substances 0.000 description 26
- OUQMXTJYCAJLGO-UHFFFAOYSA-N CC1=CSC(N)=N1 Chemical compound CC1=CSC(N)=N1 OUQMXTJYCAJLGO-UHFFFAOYSA-N 0.000 description 24
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 description 24
- COCFTELAJHDYLX-XINAWCOVSA-N (1r,5s)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one Chemical compound BrCC(=O)N1CC[C@H]2NC(=O)[C@@H]12 COCFTELAJHDYLX-XINAWCOVSA-N 0.000 description 22
- 238000010511 deprotection reaction Methods 0.000 description 22
- 150000002443 hydroxylamines Chemical class 0.000 description 22
- 125000004453 alkoxycarbonyl group Chemical group 0.000 description 21
- 102000006635 beta-lactamase Human genes 0.000 description 21
- 238000001228 spectrum Methods 0.000 description 21
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 20
- 229910004727 OSO3H Inorganic materials 0.000 description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 19
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 18
- 241000589516 Pseudomonas Species 0.000 description 18
- 230000015572 biosynthetic process Effects 0.000 description 18
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 description 17
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 17
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 16
- 125000000623 heterocyclic group Chemical group 0.000 description 16
- IZHHBASEWCBSMD-NEPJUHHUSA-N (1r,5s)-4-[[4-(2-aminoethylcarbamoylamino)phenyl]carbamoyl]-6-oxo-4,7-diazabicyclo[3.2.0]heptane-7-sulfonic acid Chemical compound C1=CC(NC(=O)NCCN)=CC=C1NC(=O)N1[C@H](C(=O)N2S(O)(=O)=O)[C@H]2CC1 IZHHBASEWCBSMD-NEPJUHHUSA-N 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 229910052708 sodium Inorganic materials 0.000 description 15
- 238000003786 synthesis reaction Methods 0.000 description 15
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 14
- 108090000204 Dipeptidase 1 Proteins 0.000 description 14
- 241000588914 Enterobacter Species 0.000 description 14
- 239000002904 solvent Substances 0.000 description 14
- 238000003756 stirring Methods 0.000 description 14
- 241000122971 Stenotrophomonas Species 0.000 description 13
- 229940024606 amino acid Drugs 0.000 description 13
- 235000001014 amino acid Nutrition 0.000 description 13
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 description 13
- 241000589291 Acinetobacter Species 0.000 description 12
- 241000588747 Klebsiella pneumoniae Species 0.000 description 12
- 230000001580 bacterial effect Effects 0.000 description 12
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- QEQDEZVLODCPMT-KGLIPLIRSA-N (1r,5s)-4-[[4-[2-(2-aminoethoxy)ethylcarbamoylamino]phenyl]carbamoyl]-6-oxo-4,7-diazabicyclo[3.2.0]heptane-7-sulfonic acid Chemical compound C1=CC(NC(=O)NCCOCCN)=CC=C1NC(=O)N1[C@H](C(=O)N2S(O)(=O)=O)[C@H]2CC1 QEQDEZVLODCPMT-KGLIPLIRSA-N 0.000 description 10
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 10
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- 125000003342 alkenyl group Chemical group 0.000 description 10
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- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
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- VKSINZNBWVJILC-UHFFFAOYSA-N tert-butyl 4-[(3-aminophenyl)methyl]piperazine-1-carboxylate Chemical compound C1CN(C(=O)OC(C)(C)C)CCN1CC1=CC=CC(N)=C1 VKSINZNBWVJILC-UHFFFAOYSA-N 0.000 description 1
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- RFIKQULMIVOPOI-UHFFFAOYSA-N tert-butyl [hydroxy-[(4-methoxyphenyl)methyl]amino] carbonate Chemical compound C(=O)(OC(C)(C)C)ON(O)CC1=CC=C(C=C1)OC RFIKQULMIVOPOI-UHFFFAOYSA-N 0.000 description 1
- QYJVBVKFXDHFPQ-UHFFFAOYSA-N tert-butyl n-(2-aminoethyl)-n-methylcarbamate Chemical compound NCCN(C)C(=O)OC(C)(C)C QYJVBVKFXDHFPQ-UHFFFAOYSA-N 0.000 description 1
- TZRQZPMQUXEZMC-UHFFFAOYSA-N tert-butyl n-(2-bromoethyl)carbamate Chemical compound CC(C)(C)OC(=O)NCCBr TZRQZPMQUXEZMC-UHFFFAOYSA-N 0.000 description 1
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- OHKOGUYZJXTSFX-KZFFXBSXSA-N ticarcillin Chemical compound C=1([C@@H](C(O)=O)C(=O)N[C@H]2[C@H]3SC([C@@H](N3C2=O)C(O)=O)(C)C)C=CSC=1 OHKOGUYZJXTSFX-KZFFXBSXSA-N 0.000 description 1
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- VFJYIHQDILEQNR-UHFFFAOYSA-M trimethylsulfanium;iodide Chemical compound [I-].C[S+](C)C VFJYIHQDILEQNR-UHFFFAOYSA-M 0.000 description 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
- A61K31/407—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with other heterocyclic ring systems, e.g. ketorolac, physostigmine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/425—Thiazoles
- A61K31/427—Thiazoles not condensed and containing further heterocyclic rings
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Definitions
- the present invention is concerned with pharmaceutical compositions and methods for treating infections caused by pathogenic Gram-negative bacteria.
- ⁇ -Lactam antibiotics have been widely used for the treatment of bacterial infections both in hospitals and in the general public.
- ⁇ -lactam antibiotics include the penicillins, cephalosporins, cephamycins, carbacephems, oxacephems, carbapenems and monobactams.
- Monobactams have been regarded as stable towards many ⁇ -lactamases. However, there are now many strains of Gram-negative bacteria that exhibit ⁇ -lactamase-mediated resistance towards the monobactam antibiotics (aztreonam, carumonam and tigemonam).
- the present invention aims to provide improved medicaments with novel monobactam antibiotics and combinations of monobactam antibiotics with ⁇ -lactamase inhibitors that are active against aerobic Gram-negative bacteria that are resistant against treatments with monobactam antibiotics.
- the objective set is solved by a pharmaceutical composition, comprising a combination of
- R1 signifies SO 3 H, OSO 3 H, CRaRa′COOH, OCRaRa′COOH, 5-tetrazolyl
- R7 signifies SO 3 H, OSO 3 H or OCRjRj′COOH
- R18 signifies —S-alkyl, —S—(CH 2 ) 2 —NH—CH ⁇ NH or a group of the following two formulae
- Rk and R1 are individually selected from hydrogen, alkyl, 2-, 3-, 4-carboxyphenyl and sulfamoyl, or a pharmaceutically acceptable salt thereof; or b8) a boronate derivative of the general formula X:
- R19 signifies a 5-6 membered heteroaromatic ring which may be substituted with amino, alkylamino, dialkylamino or alkylsulfoxide, or a pharmaceutically acceptable salt thereof; or b9) a boronate derivative of the general formula XI:
- the pharmaceutical compositions may comprise two or more compounds selected from one of the formulae II to XIII of b1) to b11), these two or more compounds being different from each other.
- R3 points downwards from the plane
- R2 points upwards from the plane
- the compounds of the above formula III are not considered as “antibiotically active” compounds in the sense of claim 1 .
- the compounds in formula I have the oximino group predominantly the “syn” configuration shown in formula I, whereas the compounds III have the oximino group specifically in the “anti” configuration shown in formula III.
- alkyl preferably means straight-chain or branched (C 1 -C 7 )alkyl such as in particular methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, isopropyl, isobutyl, tert-butyl or neopentyl.
- alkoxy preferably means straight-chain or branched (C 1 -C 7 )alkoxy, such as in particular methoxy, ethoxy, propoxy, 1- or 2-butoxy, 1-, 2-, or 3-pentyloxy, 1-, 2- or 3-hexyloxy, 1-, 2-, 3-, or 4-heptyloxy or tert-butoxy.
- alkylhydroxyl shall be considered synonymous to “alkoxy”; in particular for the alkyl in “alkylhydroxyl” the same definition shall apply as given above for “alkyl”.
- carboxamide which may be substituted preferably has the meaning that the carboxamide has 0 to 2 hydrogen atoms attached to the amino moiety, with the remainder of the substituents on the amino moiety being alkyl or phenyl which may be substituted.
- imine which may be substituted preferably means that the imine bears at the imine nitrogen hydrogen, alkyl, phenyl which may be substituted or benzyl which may be substituted.
- phenyl and benzyl if given without specifically indicated substituents, shall preferably mean that the phenyl or benzyl is optionally substituted with 1 to 5 substituents selected from alkyl, alkoxy, dialkylamino and halogen, wherein the “alkyl” itself and the alkyl in dialkylamino and alkoxy has the meaning as defined above.
- linear spacer preferably means a linear divalent group selected from —O—, —S—, —NH—, —NH—NH—, —CH 2 —, —CO—, —CH 2 O—, —CH 2 CH 2 —, —CH ⁇ CH—, —CH 2 NH—, —S—CH 2 —, —SO 2 —, —CH 2 —, —O—CH 2 —, —S—CH 2 CH 2 —, —CH 2 CH 2 —NH—, —CH 2 —NH—CO—CH 2 CH 2 —, —CH 2 —NH—CO—O—CH 2 CH 2 , —CH 2 —NH—CO—NH—CH 2 CH 2 , —CH 2 —O—CO—NH—CH 2 CH 2 —, —CH(OH)—, —CH(COOH)—, —CH(OSO 3 H)—, —CH(OCONH 2 )
- Some compounds of formula I may, when they contain an acidic group (such as when R1 is SO 3 H, OSO 3 H, CRaRa′COOH, OCRaRa′COOH or SO 2 NHRb) be present as a salt with a pharmaceutically acceptable inorganic base (e.g. NaOH, KOH, NH 3 , K 2 CO 3 , Na 2 CO 3 , Na 2 HPO 4 or K 2 HPO 4 ) or organic base (e.g. NEt 3 , HNiPr 2 , triethanolamine, TRIS or basic amino acids such as arginine and lysine).
- a pharmaceutically acceptable inorganic base e.g. NaOH, KOH, NH 3 , K 2 CO 3 , Na 2 CO 3 , Na 2 HPO 4 or K 2 HPO 4
- organic base e.g. NEt 3 , HNiPr 2 , triethanolamine, TRIS or basic amino acids such as arginine and lysine.
- some of the compounds of formula I when they contain both an acidic group (such as when R1 is SO 3 H, OSO 3 H, CRaRa′COOH, OCRaRa′COOH or SO 2 NHRb) and a basic group (such as when R6 is 2-amino-1,3-thiazol-4-yl, 5-amino-1,2,4-thiadiazol-3-yl, 5-amino-1,2,4-oxadiazol-3-yl, 3-aminoisoxazol-5-yl, 5-amino-1-methylpyrazol-3-yl, 5-aminopyrazol-3-yl, 6-amino-2-pyridyl, 4-aminopyrimidin-2-yl, 2-carbonylamino-1,3-thiazol-4-yl or 2-amino-5-chloro-1,3-thiazol-4-yl) may form an inner, zwitterionic salt; such inner salts are also intended to be encompassed by the claims.
- R4 contains a 4-pyridone moiety, wherein Rd is selected from hydrogen and hydroxy, there is the possibility of tautomerism:
- the invention intends to encompass the use of any such tautomers.
- a first group of preferred examples of compounds of the formula I for the combinations of the invention are aztreonam, carumonam, tigemonam, and compounds according to the following table 1 (R5 is in these compounds always H):
- Rz is SO 3 H or CRaRa′COOH, wherein Ra and Ra′ are as defined for formula I; R2, R3, R5 and R6 are as defined for formula I; R4 is CH 2 Z; whereby Z is a group of one of the formulae
- Rd, Re and Rf are as defined for the compounds of formula I; and the pharmaceutically acceptable salts or inner salts thereof.
- This first group of compounds forms part of the invention.
- Rz is SO 3 H, then preferably both R2 and R3 are methyl.
- Rz is CRaRa′COOH, then R2 is preferably selected from hydrogen, methyl, fluoromethyl and carbamoyloxymethyl; and R3 is preferably selected from or hydrogen and methyl; and more preferably here, the absolute configuration at the carbon atom bearing R2 and R3 is (S).
- Ra and Ra′ are each hydrogen.
- the Rd, Re and Rf are individually selected from hydrogen and hydroxy, with the proviso that at least two of Rd, Re and Rf are hydroxy (most preferably Rd and Re are hydroxy and Rf is hydrogen).
- R5 is preferably hydrogen.
- R6 is preferably an optionally amino-substituted and optionally chloro-substituted 5-6-membered heteroaromatic ring, this ring being more preferably selected from 2-amino-1,3-thiazol-4-yl, 5-amino-1,2,4-thiadiazol-3-yl, 5-amino-1,2,4-oxadiazol-3-yl, 3-aminoisoxazol-5-yl, 5-amino-1-methylpyrazol-3-yl, 5-aminopyrazol-3-yl, 6-amino-2-pyridyl, 4-aminopyrimidin-2-yl, 2-carbonylamino-1,3-thiazol-4-yl, 2-amino-5-chloro-1,3-thiazol-4-yl and 2-thienyl.
- More preferred examples of the compound of formula Ia are the compounds (12), (22), (23), (24), (25), (26), (29), (30), (31), (32), (33), (34), (35), (36), (37), (41), (42), (43), (44), (45), (46), (47) and (48) of above table 1.
- the most preferred compounds of formula Ia are compounds (22), (23), (26) and (31).
- the compounds of formula Ia if Rz is SO 3 H, can be made by a methodology as outlined in scheme 4 below, until the R2,R3-disubstituted 3-amino-2-oxoazetidine hydroxysulfonate, and reacting this further in a manner known per se to connect the 3-amino substituents.
- the compounds of formula Ia, if Rz is CRaRa′COOH can be prepared following the synthesis scheme of compounds II to X as described in U.S. Pat. No. 4,939,253 (column 15, line 26 to column 17, line 25), and reacting the obtained oxoazetidine X further according to scheme 1 described hereinafter.
- R1 is SO 3 H
- R2 is H
- R3 is methyl
- R4 is C(Rx)(Ry)Z
- Z is a group of one of the formulae
- Rd, Re and Rf are individually selected from hydrogen and hydroxy, with the proviso that at least two of Rd, Re and Rf are hydroxy (most preferably Rd and Re are hydroxy and Rf is hydrogen).
- antibiotically active monobactams of formula I may firstly be combined with
- R8 is preferably of the formula Q-(X) r —CO—.
- the following subgroups are more preferable within this formula:
- Examples within this subgroup are pyridinium, 2-, 3- or 4-aminopyridinium, 3-N-methylaminopyridinium, 3-N,N-dimethylaminopyridinium, 4-(N-methylamino)pyridinium, 4-(N,N-dimethylamino)pyridinium, 3-carbamoylpyridinium, 3-(N-methylcarbamoyl)pyridinium, 3-(N,N-dimethylcarbamoyl)pyridinium, 4-carbamoylpyridinium, 4-(N-methylcarbamoyl)pyridinium, 4-(N,N-dimethylcarbamoyl)pyridinium, 3-(N-cyclopropylcarbamoyl)pyridinium, 4-(N-cylopropylcarbamoyl)pyridinium, 4-(N-methylcarbamoyl)pyridinium, 3-(methoxycarbonyl)
- R7 is preferably —SO 2 ⁇ or —OSO 2 ⁇ , to form a pharmaceutically acceptable inner salt.
- the compounds II of this subgroup a) themselves are per se also part of the invention, but compound 102 of table 2 below is known from J. Med. Chem. 1998, 41(21), 3961, and does per se not form part of the invention.
- R7 is preferably —SO 3 H or OSO 3 H, whereby the possibility of formation of an inner, acid addition salt may be allowed, to form a pharmaceutically acceptable inner salt.
- Examples for Q here are phenyl, 3- and 4-hydroxyphenyl, 2,3-, 2,4-, 2,6-, 3,4-, 3,5- and 3,6-dihydroxyphenyl, 2-, 3- and 4-methoxyphenyl, 3-[N′- ⁇ 2-(2-aminoethoxy)ethyl ⁇ carbamoylamino]phenyl, 3-[N′- ⁇ 2-(3-aminopropoxy)ethyl ⁇ carbamoylamino]phenyl, 3-[N′- ⁇ 3-(2-aminoethoxy)propyl ⁇ carbamoylamino]phenyl, 3-[N′- ⁇ 3-(3-aminopropoxy)propyl ⁇ carbamoylamino]phenyl, 4-[N′- ⁇ 2-(2-aminoethoxy)ethyl ⁇ carbamoylamino]phenyl, 4-[N′- ⁇ 2-(2-aminoethoxy)ethyl ⁇ carbamo
- the compounds of formula I may also be combined with other ⁇ -lactamase inhibitors. These further inhibitors are:
- Examples of these compounds are disclosed in WO-A-99/10324 and WO-A-98/47895, incorporated herein by reference.
- a preferred example of these compounds is 3- ⁇ (2E)-3-[(1,5-dihydroxy-4-oxo(2-hydropyridyl))methoxy]-2-(2-thienyl)-3-azaprop-2-enoylamino ⁇ (3S,4S)-4-methyl-2-oxoazetidinesulfonic acid disclosed in WO-A-98/47895.
- preferred examples of the 5-6 membered heteroaromatic ring as R12 are 1,3-thiazol-2-yl, 1,2,4-oxadiazol-3-yl and 1,2,3-triazol-1-yl.
- Particularly preferred examples of the compounds of formula V are sulbactam, tazobactam and the compounds of the following table (in parentheses the source):
- a preferred compound of formula VI is clavulanic acid or a customary pharmaceutically acceptable salt thereof (i.e. a clavulanate).
- preferred examples of the 5-6 membered heteroaromatic ring which may be bound over a —CH ⁇ CH— spacer as R15 are 1,2,3-triazol-4-yl, 2H,3H-imidazo[2,1-b]1,3-thiazolidin-6-yl and 2′-[1-methyl-1,2,3-triazolin-4-yl]vinylidene.
- inhibitors of formula VII are e.g. 6-[(1-methyl(1,2,3-triazol-4-yl))methylene]-5-oxo-6aH-azetidino[2,1-b]1,3-thiazoline-3-carboxylic acid and 6-(2H,3H-imidazo[2,1-b]1,3-thiazolidin-6-ylmethylene)-5-oxo-6aH-azetidino[2,1-b]1,3-thiazoline-3-carboxylic acid (as described in Antimicrob. Agents Chemother. 1989, 1580 and Antimicrob. Agents Chemother.
- a preferred example of the 5-6 membered heteroaromatic ring as R16 is 2-thienyl.
- Preferred examples are here 3-(acetyloxymethyl)-1,1,6-trioxo-7-(2-pyridylmethylene)-2H,7aH-azetidino[2,1-b]1,3-thiazine-4-carboxylic acid (Biorg. Med. Chem. Lett. 2000, 853 and Biorg. Med. Chem. Lett. 2000, 847) and 3-(acetyloxymethyl)-7- ⁇ [tert-butyl)oxycarbonyl]methylene ⁇ -1,1,6-trioxo-2H,7aH-azetidino[2,1-b]1,3-thiazine-4-carboxylic acid (J. Med. Chem. 1995, 38, 1022).
- Preferred examples these compounds are imipenem, meropenem, ertapenem and doripenem.
- Examples of these compounds are 3-[(4-phenylsulfonyl-2-thienylsulfonyl)amino]phenyl]boronic acid (Chem. Biol. 2001, 8, 593) and [3-[[4-[(4-carboxyphenylsulfonyl)amino]phenylsulfonyl]amino]phenyl]boronic acid (Chem. Biol. 2001, 8, 594).
- Preferred examples of these are ⁇ [(4-nitrophenoxy)(hydroxyphosphoryl)]methyl ⁇ [benzylsulfonyl]amine, ⁇ [(4-nitrophenoxy)(hydroxyphosphoryl)]methyl ⁇ (phenylsulfonyl)amineand ⁇ [(4-nitrophenoxy)(hydroxyphosphoryl)]methyl ⁇ (2-thienylsulfonyl)amine, (benzo[b]thiophen-2-ylsulfonyl) ⁇ [(4-nitrophenoxy)(hydroxyphosphoryl)]methyl ⁇ amine and 2-[(4-nitrophenoxy)(hydroxyphosphoryl)]-1-(phenylsulfonyl)hydrazine (all described in US-A-2004/082546 and US-A-2004/029836); and
- compositions of the present invention may comprise, besides the compound of formula I, two or more compounds selected from the above formulae II to XIII, being different from each other.
- Pharmaceutical compositions comprising triple combinations of a compound of formula I and two different compounds selected from the groups b1) to b11) are a preferred embodiment of the invention.
- Preferred combinations for the pharmaceutical compositions of the invention are compounds of formula I, where
- R1 is SO 3 H, or OCRaRa′COOH, wherein Ra and Ra′ are as defined for formula I; R2, R3 and R5 are as defined for formula I; R4 is C(Rx)(Ry)Z, with either:
- Rd, Re and Rf are as defined for formula I; or
- R4 is 4-hydroxypyridino[3,2-b]pyridin-3-yl)methoxy
- R6 is 2-amino-1,3-thiazol-4-yl, 2-amino-5-chloro-1,3-thiazol-4-yl, 5-amino-1,2,4-thiadiazol-3-yl, 5-aminopyrazol-3-yl or 4-aminopyrimidin-2-yl;
- compositions wherein the above double combinations are further combined with one of sulbactam, clavulanic acid or a customary pharmaceutically acceptable salt thereof, i.e. a clavulanate. These compositions thus comprise triple combinations.
- compositions with the following double and triple combinations are particularly preferred.
- compositions with triple combinations of compound no. 1 according to formula I with any one of the compounds of formula II and with clavulanate form a particularly preferred embodiment of the invention, such as do kits-of-parts (articles) with this combination.
- the compounds of formula I are compounds known from the above cited literature references, or can be made in an analogous manner, or can be made as described in the following. If in the following schemes a number is assigned to an intermediate then this intermediate is per se presumed novel and may form part of the invention.
- the compounds of formula I can generally be prepared by reacting aryl or heteroaryl carboxylic acids of general formula A with 3-amino-azetidin-2-one compounds of general formula B (scheme 1).
- R4 may also have the meaning of a protecting group, which may then be removed, in order to subsequently connect the actually desired R4.
- the coupling reaction of compounds of general formula A with compounds of general formula B can be performed with the corresponding acyl chlorides of the aryl or heteroaryl carboxylic acids of general formula A or with the carboxylic acids A themselves and DCC (Chem. Pharm. Bull 1983, 2200) or with an activated ester of the aryl or heteroaryl carboxylic acids of general formula A, such as the N-hydroxysuccinimidyl ester (see Org. Process Res. & Dev. 2002, 863) or the benzothiazolyl thioester (see J. Antibiotics 2000, 1071).
- R 2 is particularly preferably methyl.
- R 3 is particularly preferably methyl.
- the introduction of the second residue R 3 into 1011 by Grignard reaction gives, according to Cram, predominantly the shown diastereomer of 1012, due to the chelating effect of the oxygen atom of the ⁇ -acetonide substituent.
- both diastereomeric amino acids (2S)-1014 and (2R)-1014 may form as a mixture due to the newly formed chiral ⁇ -carbon atoms.
- the diastereomers of the so produced ⁇ -hydroxy amino acids 1014 may be separated using ion exchange chromatography with aqueous buffers as the mobile phase, as is customary in the art.
- the correct diastereomer (2S)-1014 may be identified as the one that produces faster a dipeptide, when each of the diastereomers (2S)-1014 and (2R)-1014 is reacted under otherwise identical conditions with N-benzoyl L-alanine methyl ester and carboxypeptidase Y as the dipeptide-forming enzyme (for an appropriate experimental procedure see example 1 of EP-A-0 017 485).
- the other, undesired diasteromer (2R)-1014 may be used for the production of N-protected ⁇ -hydroxy amino acids 1000a where the hydrogen atom at the ⁇ carbon atom is replaced by R 5 other than hydrogen (see section A-1-IV below).
- Scheme A-1-IIa outlines an alternative procedure starting from protected serine 1007 and leading to disubstituted hydroxyl derivatives 1016 by controlling the stereochemistry of the addition of the second substituent; either with R3Li, giving the Felkin adduct as major product, or with R3MgX, to obtain the anti-Felkin adduct as major product (Tetrahedron 1995, 8121).
- R 2 is preferably alkyl, alkenyl, alkynyl, optionally substituted benzyl or optionally substituted phenyl
- R 3 is H
- R 2 is H and R 3 is preferably alkyl, alkenyl, alkynyl, optionally substituted benzyl or optionally substituted phenyl
- a synthesis according to following scheme A-1-III) may be adopted to form 1000:
- R5 is preferably alkyl
- one of R2 and R3 is preferably hydrogen
- the other one preferably is alkyl, alkenyl, alkynyl, optionally substituted phenyl or optionally substituted benzyl (or both of R2 and R3 are preferably independently selected from alkyl, alkenyl, alkynyl, optionally substituted phenyl and optionally substituted benzyl)
- the technology described in part A-1-III Helv. Chim. Acta 1987. 237) can be employed, but using 2-tert-butyl-N-benzoyl-1,3-oxazolidinone as chiral inductor (scheme A-1-IVa below).
- R5-X leads to the compound 1029.
- a condensation with aldehyde R2CHO as second electrophile gives the R2,R5-disubstituted oxazolidinone 1030 with control of the stereochemistry.
- the configuration at the newly formed secondary alcohol in 1030 may be inverted, such as under Mitsunobu conditions, to form the epimeric R2,R5-disubstituted oxazolidinone 1031.
- R2,R3,R5-trisubstituted oxazolidinones 1032 may be produced.
- the formed epimers of 1032 may be separated, such as by chromatography. All three compounds 1030, 1031 and 1032 may subsequently be converted by hydrolysis of the benzoyl group and the oxazolidinone ring and reprotection of the amino group desired compounds 1000a.
- A-1-IVb When the azetidinone B contains alkoxy as R5 and one of R3 or R2 preferably as hydrogen, and the other, one preferably as alkyl, alkenyl, alkynyl, optionally substituted phenyl or optionally substituted benzyl, then another example of preparation of amino acids 1000a is outlined in following scheme A-1-IVb (in the scheme R3 is assumed as hydrogen). It is based on the chemical description written on Biochemistry 2004, 3385 and Fortschr. Chem. Org. Naturst., 1979, 327.
- This scheme shows how to form compounds B where X1 is preferably selected from halogen, azido, amino, hydroxyl, cyano, carboxyl, alkoxycarbonyl, alkanoylamino, phenylaminocarbonyl, alkylaminocarbonyl, aminocarbonyl, carbamoyloxy, alkylaminosulfonyl and optionally substituted phenylaminosulfonyl.
- X1 is preferably selected from halogen, azido, amino, hydroxyl, cyano, carboxyl, alkoxycarbonyl, alkanoylamino, phenylaminocarbonyl, alkylaminocarbonyl, aminocarbonyl, carbamoyloxy, alkylaminosulfonyl and optionally substituted phenylaminosulfonyl.
- X1 is preferably selected from halogen, azido, amino, hydroxyl, cyano, carboxyl, alkoxycarbony
- the R6-substituted keto acid A3 required in both schemes 6 and 7 can be prepared via 2 different synthetic pathways, as described in the following.
- A3 may firstly be obtained by oxidation of an ester A1 leading to the glyoxalate derivative A2, followed by hydrolysis of the ester group (scheme 6).
- the oxidising agent used in the conversion from A1 to A2 is not critical. Examples of suited oxidising agents are SeO 2 (J. Antibiotics 1983, p. 1020ff.), DMSO, x 2 (Bull. Chem. Soc. Jpn. 1994, 1701), x 2 and pyridine-N-oxide (Bioorg. Med. Chem. 2003, 591) where x 2 is a halogen; with SeO 2 being preferred.
- the R6-substituted keto acid A3 can also be prepared via the condensation of methyl methylthiomethyl sulfoxide according to above scheme 7 (J. Antibiotics, 1984, 546, J. Antibiotics, 1984, 557) in a 4 step synthesis from the esters A4 R6COOCH 3 or R6COOEt.
- the methyl methylthiomethylsulfoxide is first condensed with A4 derivatives to give the methyl thioglyoxylate compound A6 after acidic treatment.
- R6 can be a 5 membered heteroaromatic ring containing 1 to 4 heteroatoms such as N, O, S and which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, carbonylamino and halogen such as F, Cl, Br or I, preferably Cl.
- R6 is a thiadiazole, especially 1,2,4-thiadiazole
- Examples of compounds A1 may be prepared starting from 3-amino-5-methoxyisoxazole or methyl amidine in presence of thioesters, potassium thiocyanate or isothiocyanate as outlined in scheme B-1-Ia (Bull Chem Soc Jpn. 1994, 1701, J. Antibiotics 1983, 1020).
- R is preferably selected from hydrogen, alkyl, alkoxy, amino, alkylamino and carbonylamino.
- Scheme B-1-Ib outlines examples of starting materials.
- A0, A1 and A4 Helv. Chim. Acta 1982, 2606; Russ. J. Org. Chem. 2003; 1133, Tetrahedron Let. 1979, 2827
- 1049 may by prepared and then can lead to 2-amino-(1,3,4-thiadiazol-5-yl)acetic acid 1050.
- R is preferably selected from hydrogen, alkyl, alkoxy, amino, alkylamino and carbonylamino.
- reaction with base/CO 2 optionally by silyl protection of the amino group, may be carried out according to J. Antibiotics, 1984, 532 already cited above.
- amide oxime derivatives 1051 wherein R is preferably selected from hydrogen, alkyl and alkoxy may be reacted with compounds such as carboxylic acid, acyl chloride or cyano derivatives to form 1,2,4-oxadiazole rings 1052,which are new examples of heterocycles derivatives A1.
- R′ is preferably selected from hydrogen, alkyl, alkoxy, carbonylamino and halogen (in particular Cl)
- carboxylates 1054, 1056 of type A1 which are isomeric to 1052 (Tetrahedron Lett. 1998, 3931, J. Org. Chem 1995, 3112, J. Med. Chem. 1990, 1128, J. Pep. Research 2003, 233, Z. Chem. 1975, 57).
- compound 1056 may be obtained from the condensation of 1055 with BrCN.
- acids A0 outlined in scheme B-1-Id shown below are triazolyl acetic acid derivatives, such as 1,2,4-triazolyl acetic acids 1057, which may optionally be substituted by one substituent R preferably selected from amino, alkyl, alkoxy and carbonylamino.
- R preferably selected from amino, alkyl, alkoxy and carbonylamino.
- 2-(5-amino-1,2,4-triazol-3-yl)acetic acid (R ⁇ NH 2 ) by this scheme is known from Russ. J. Org. Chem. 1995, 240.
- a versatile way for forming intermediates A0, A1 or A4, wherein the residue R6 is an optionally substituted 1,3-thiazol-4-yl or 1,3-oxazol-4-yl, is according to the known reactions of a thioamide or amide with an ⁇ -haloketone derivatives, as outlined in scheme B-1-Ie):
- R may preferably be selected from hydrogen, alkyl, alkoxy, amino, and alkylamino; and R′ is preferably selected from hydrogen and alkyl.
- substituted thioamides, and substituted ethyl halogeno pyruvate 1058 or compounds 1059 substituted 1,3-thiazol-4-yls 1060, 1061 may be obtained according to examples described in the literature such as Tetrahedron Lett. 2005, 66; J. Chem. Soc. 1966, 1357; J. Chem. Soc. 1960, 925; J. Med. Chem. 1971, 1075; J. Het. Chem. 1980, 1255; J. Med. Pharm. Chem. 1961, 577.
- substituted 1,3-oxazol-4-yl acetic acid esters may be prepared as reported for instance in Bioorg. Med. Chem, 2003, 4325; Heterocycles, 2001, 689; Chem. Pharm. Bull. 1986, 2840; Tetrahedron Lett. 1992, 1937.
- the preparation of compounds 1062 from urea with ethyl bromo pyruvate is an example of preparation of 1,3-oxazole derivatives. If R′ is hydrogen and X is sulphur, then the thiazole moiety in 1060 or 1061 may subsequently be chlorinated using the procedure as described in “Preparation 1” of EP-A-0 055 465.
- heterocyclic intermediates A0, A1 or A4 may be synthesised from substituted ethyl pyruvates in presence of hydrazine or substituted hydrazines according to the scheme B1-If (J. Chem. Soc. 1945, 114; Helv. Chim. Acta 1955, 670, J. Am. Chem. Soc. 1959, 2456).
- R is preferably selected from hydrogen, alkyl and carbonylamino
- R′ is preferably selected from hydrogen, alkyl, alkoxy, carbonylamino, hydroxyl, amino, alkylamino and halogen (in particular Cl).
- isoxazoles with a carboxyl substituent in the 3-position and with one or two substituents selected from amino, alkyl (in particular methyl and ethyl) and hydroxyl are commercially available.
- Similar commercially available isoxazoles with a methyl substituent in the 3-position and optionally one or two substituents R′ and R′′ preferably independently selected from alkyl, alkoxy and halogen, may again be converted to corresponding carboxylate-containing isoxazoles by converting that 3-methyl substituent to carboxylate using base and carbon dioxide (scheme B-1-Ig).
- 3-amino-5-isoxazolyl-2-acetic acid 1065 was prepared from 3-amino-5-methylisoxazole in this way.
- R6 can also be a phenyl ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, carbonylamino and halogen or a 6-membered heteroaromatic ring containing 1 to 5 heteroatoms such as N and which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, carbonylamino and halogen (such as F, Cl, Br, I, preferably Cl).
- keto acids A3 for above schemes 6 and 7 are by direct Friedel-Crafts acylation of an appropriately substituted corresponding phenyl or heterocycle R6-H, using excess oxalyl chloride.
- R6 is phenyl or a heterocycle which may be substituted by one to five substituents selected from alkyl, alkoxy, dialkylamino and halogen (in particular chloro), with the proviso that the phenyl or heterocycle has at least one unsubstituted carbon atom (the carbon atom that will carry the gyloxaloyl substituent).
- intermediates A4 are commercially available pyridinecarboxylic acids, such as picoline (2-pyridinecarboxylic acids), nicotinic acid (3-pyridinecarboxylic acids) or isonicotinic acid (3-pyridinecarboxylic acids), which may optionally be substituted at the pyridyl by a substituent selected from alkoxy, halogen (in particular chloro) and amino.
- pyridinecarboxylic acids such as picoline (2-pyridinecarboxylic acids), nicotinic acid (3-pyridinecarboxylic acids) or isonicotinic acid (3-pyridinecarboxylic acids
- acids A0 are 2-pyridyl acetic acids, such as 2-(pyridyl-2)acetic acids 2-(pyridyl-3)acetic acids or 2-(pyridyl-4)acetic acids which may optionally be substituted at the pyridyl by a substituent selected from alkoxy, halogen (in particular chloro) and amino.
- R6 can also be a pyrimidine derivative.
- Scheme B-2-Id shows that amidine derivatives (J. Org. Chem. 1962, 3608) can lead to either 2-substituted pyrimidine A1 or A4 (DE-OS-2848912, J. Antibiotics 1984, 546).
- esters A4 Another group of commercially available or synthetically accessible esters A4 are pyrimidyl-4 (ethyl 5,6-diaminopyrimidine-4-carboxylate, ethyl 2-amino-5-chloropyrimidine-4-carboxylate), pyrimidyl-5 (ethyl 2,4-diaminopyrimidine-5-carboxylate, ethyl 2-chloro-4-amino-5-carboxylate, ethyl 2,4-dichloropyrimidine-5-carboxylate) or pyrimidyl-6 (ethyl 2-chloro-4-amino-pyrimidine-6-carboxylate, ethyl 4,5-diaminopyrimidine 6-carboxylate) which are also considered as examples of 6-membered heterocyclic rings as R6 (Tetrahedron Lett. 1967, 1099; Chem Pharm. Bull. 1970, 1003. Justus Liebig Ann. Chem.
- hydroxylamines may be prepared firstly according to J. Antibiotics, 2000, 1072 with N-hydroxyphthalimide via Mitsunobu reaction conditions in presence of the alcohols R4-OH or by alkylation of N-hydroxyphthalimide in presence of activated compounds R4-X (X can be halogens like Cl, Br, I, or activated sulfonate esters like mesylate, tosylate, triflate, etc.).
- N-hydroxyphthalimide may simply be treated with a stoichiometric amount of BF 3 .Et 2 O with the corresponding alcohol R4-OH (Tetrahedron Lett., 2005, 6667). Formation of the final hydroxylamines may be performed in presence of either hydrazine or methyl hydrazine.
- the oxaziridine technology developed by Ellman can also been employed to give directly deprotected 0-substituted hydroxylamines (J. Org. Chem. 1999, 6528). (scheme 8).
- Alcohols R4-OH or compounds R4-X are either commercially available or may be prepared as described in following sections B3-Ia) to B-3-Ie).
- a first method, where R4 is C(Rx)(Ry)Z, with Z ⁇ CH 2 N(OH)COR′, is outlined, as example, in the following scheme B-3-Ia, using ⁇ -halogenoalcohols 1069 or 1071 and N—Boc-O-(p-methoxybenzyl)hydroxylamine.
- the ⁇ -halogenoalcohols 1071 can be prepared from derivatized epoxides 1070 which can be opened in acidic conditions (Eur. J. Org. Chem. 2004, 2557).
- the ⁇ -halogenoalcohols 1069 can be obtained by chiral reduction of corresponding ⁇ -halogenoketones (Tetrahedron: Asymmetry 2005, 3955).
- the synthesis may start from a ketone with two different residues Rx ⁇ Ry, using an asymmetric epoxide forming reaction such as the catalytic epoxidation developed by Aggarwal (Accounts of Chemical Research, 2004, 37, pp. 611ff.).
- the conversion of 1069 and 1071 to 1072 is analogous to the procedure of Bioorganic & Medicinal Chemistry Letters 1996, 6(17), 2077ff.
- the oxaziridine technology developed by Ellman can be employed to give the hydroxylamine (J. Org. Chem. 1999, 6528).
- the kojic acid used as the starting material is commercially available.
- the reactands H 2 N-Rd are amines, when Rd is hydrogen, alkyl or optionally substituted benzyl, they are hydrazines, when Rd is amino or monoalkylamino; they are carbamates, when Rd is alkoxycarbonyl; and when Rd is ORg, these reactands are hydroxylamines.
- the reactands Rg-X are hydrogen halides, alkyl halides or benzyl halides, wherein X is preferably Br or I. These reactands Rg-X are known or easily made from the corresponding alcohols Rg-OH. In the above scheme, instead of trimethylsilyl other protecting groups could also be used, such as benzyl, diphenyl or trityl as reported in J. Antibiotics 1990, 1450.
- the synthesis starts from kojic acid and is based on the known chemistry described in Biorg Med Chem Lett 2004, 3257; J. Med Chem 2002, 633; Bioorg Med. Chem. 2001 563 and J. Antibiotics 1990 1454.
- the diphenylmethane protecting group in 1082 may subsequently be removed and, if desired, the free hydroxy group be reacted with an appropriate halide R—X, wherein R is alkyl or optionally substituted benzyl.
- scheme B-3-If The upper part of scheme B-3-If is based on the possibility to run a Wittig reaction (J. Med. Chem 2004, 6349) on the aldehyde obtained after Swern oxidation.
- the resulting product 1083 may be subjected to hydrogenolysis in presence of Pd/C similarly to the preparation of compound 10′j in J. Med. Chem 2004, 6349.
- the resulting compound 1084 may then be treated as already outlined in above scheme 8 to obtain desired hydroxylamines 1085.
- the lower part of scheme B-3-If shows the preparation of hydroxylamines with linear or branched alkyl as Rf.
- R′ and R′′ are preferably selected from alkyl (in particular methyl and ethyl) and hydrogen; more preferably one of R and R′′ is hydrogen, or both R′ and R′′ are hydrogen.
- a thermal rearrangement of products 1086 obtainable by alkylation of the 4-hydroxyl group of kojic acid with appropriately R′,R′′-substituted allyl bromides (J. Am. Chem. Soc. 1956, 2816) leads to 6-substituted pyridones 1087. These may again be converted in the usual way to hydroxylamines 1089.
- the diphenylmethane group may subsequently be removed and, if desired, the free hydroxy group be reacted with an appropriate halide R—X, wherein R is alkyl or optionally substituted benzyl. These last steps are not shown in the above scheme.
- the diphenylmethane group may subsequently be removed and, if desired, the free hydroxy group be reacted with an appropriate halide R—X, wherein R is alkyl or optionally substituted benzyl. These last steps are not shown in the above scheme.
- the naphthyridine hydroxylamine may be obtained from commercially available 4-hydroxy-1,5-naphthyridine-3-carboxylic ethyl ester after diphenyl protection of the hydroxyl group and reduction of ester group. Mitsunobu reaction in presence of N-hydroxyphthalimide and deprotection with hydrazine leads to the desired compound 1093.
- Ri is as defined in claim 1 .
- Those substituted 5-membered rings are known as bioisosteres (Curr. Med. Chem. 2004, 11, 945) of the carboxylic acid group.
- One particularly preferred hydroxylamine of this type, tetrazole methyl hydroxylamine 1094 may be obtained from commercially chloro methyl tetrazole with N-hydroxyphtalimide according to the method described in J. Antibiotics 2000, 1071 (scheme B-3-IIIa below).
- Isoxazole analogs J. Heterocyclic Chem. 1997, 345, J. Med. Chem. 1996, 183 or isothiazoles (J. Med. Chem. 1998, 930) are also known as bioisosteres of the carboxylic acid group and may be done in similar way as outlined in the scheme B-3-IIIb below based on the following literature (J. Chem. Soc., Perkin 1 1993, 2153; Synthesis 1996, 1177, Acta Chem. Scand. 1990, 96.
- the condensation with O-substituted hydroxylamine may be performed to lead to compounds of general formula A.
- the condensation of the hydroxylamines R4-ONH 2 with the keto acid derivatives A3 to form the compounds A may then follow the procedure described in J. Antibiotics 2000, 1071 and WO-A-02/22613.
- esters A1 may firstly be oxidised to form compounds A2 as shown in scheme 6, then reacted with hydroxylamine, followed by O-protection and ester hydrolysis, to lead to the intermediate C, which can be coupled to the azetidinone B.
- Substituents R4 can be introduced by alkylation. This alternate route is shown in the following scheme 9:
- the compounds of formula II are compounds known from the above cited literature references (EP-A-0 508 284 and U.S. Pat. No. 6,566,355) or can be made in an analogous manner or can be made as described in the following scheme 10.
- the intermediate compound D (J. Med. Chem. 1998, 3961 and EP-A-0 508 234) gives access to compounds of formula IIA, IIB or to IIC using different synthetic routes outlined in scheme 10.
- the compounds of formula IIB may be obtained from compound H and succinimidyl derivatives according to the following scheme 12:
- Compound H may be prepared as previously described in scheme 11. Then the succinimidyl derivatives may be synthesized and introduced according to the procedures described in J. Med. Chem. 1998, 3961.
- the compounds IIC may be synthesized via two different routes:
- the reactants are reacted together with a suitable solvent at elevated or low temperatures for sufficient time to allow the reaction to proceed to completion.
- the reaction conditions will depend upon the nature and reactivity of the reactants.
- a base is used in a reaction, they are selected from e.g. triethylamine, tributylamine, trioctylamine, pyridine, 4-dimethylaminopyridine, diisopropylamine, 1,5-diazabicyclo[4,3,0]non-5-ene, 1,8-diazabicyclo[5,4,0]undec-7-ene, sodium carbonate, sodium dicarbonate, potassium carbonate, potassium bicarbonate or cesium carbonate.
- the deprotection of functional groups may be carried out either by hydrogenation or hydrolysis with appropriate acids such as hydrochloric acid, formic acid, trifluoroacetic acid, acetic acid or p-toluenesulfonic acid; in solvents such as methanol, ethanol, propanol, ethyl acetate, acetonitrile, methylene chloride or ethylene chloride.
- acids such as hydrochloric acid, formic acid, trifluoroacetic acid, acetic acid or p-toluenesulfonic acid
- solvents such as methanol, ethanol, propanol, ethyl acetate, acetonitrile, methylene chloride or ethylene chloride.
- the hydrogenation is usually carried out in the presence of a metal catalyst, such as Pd, Pt or Rh under normal to high pressure.
- the solvents of choice for the reaction are selected based upon the reactants used and from solvents such as benzene, toluene, acetonitrile, tetrahydrofurane, ethanol, methanol, chloroform, ethyl acetate, methylene chloride, dimethyl formamide, dimethyl sulfoxide, hexamethyl phosphoric triamide or the like. Solvents mixtures may also be used.
- Reaction temperatures would generally range from between ⁇ 70° C. to 150° C.
- the preferred molar ratio of the reactants is 1:1 to 1:5.
- the reaction time range from 0.5 to 72 hours, depending on the reactants.
- the compounds of formula I, Ia and Ib and their pharmaceutically compatible salts can be used in accordance with the invention in the control or prevention of illness in mammals, human and non-human, especially in combination with ⁇ -lactamase inhibitors.
- the compound of formula I or pharmaceutically compatible salts thereof with bases can be administered before, simultaneously with or after the administration or intake of one or more ⁇ -lactamase inhibitors of formula II-XIII.
- the products in accordance with the invention can be administered in the form of pharmaceutical compositions containing the combination of a compound of formula I or a pharmaceutically compatible salt thereof with a base, and one or more ⁇ -lactamase inhibitors of formula II-XIII; alternatively, they may also be administered separately from the ⁇ -lactamase inhibitors, simultaneously or sequentially, in which case the combination according to the invention may be present as a kit-of-parts. Articles with such pharmaceutical combinations are also an object of the present invention.
- the compounds of formula I are active against a variety of bacterial organisms. They are active against aerobic Gram-negative bacteria that do not produce ⁇ -lactamases, including Enterobacteriaceae, for example Escherichia coli, Enterobacter cloacae, Enterobacter aerogenes, Citrobacter freundii, Klebsiella pneumoniae, Klebsiella oxytoca, Proteus vulgaris, Providencia rettgeri; Pseudomonas for example P. aeruginosa; Acinetobacter for example A. baumannii; Burkholderia , for example B. cepacea; Stenotrophomonas for example S. maltophilia . Combinations of compounds of formula I and formula II are active against strains of the above organisms that do produce ⁇ -lactamases and this activity can be increased by additionally combining compounds of formula III-XIII with the combination comprising compounds of formulae I and II.
- compositions and articles (kits-of-parts) according to the present invention are administered by any route, preferably in the form of a pharmaceutical composition, or kit-of-parts of individual compositions, adapted to such a route. Dosage and route of administration should be determined by susceptibility of the causative organisms, severity and site of infection, and the condition of the patient.
- the preferred types of pharmaceutical compositions are, for example, administered intravenously or by intramuscular injection.
- Formulations for parenteral administration can be in the form of aqueous isotonic sterile injection solutions or suspensions. These solutions or suspensions can be prepared from sterile powders, granules or lyophilizates.
- the compounds can be dissolved in sterile water or in various sterile buffers that may contain sodium chloride, polyethylene glycol, propylene glycol, ethanol, sucrose, glucose, arginine, lysine, or lactic acid.
- the dry compositions can contain from 0.1% to 99% by weight, preferably 10%-60% by weight, of each of active ingredients. If the compositions contain dosage units, each unit preferably contains from 50 mg to 4 g of each active substance.
- the ratio of ⁇ -lactam antibiotic (compounds of formula I or pharmaceutically compatible salts thereof with a base) and ⁇ -lactamase inhibitors (compounds of formula II and formula III-XIII, or pharmaceutically compatible salts thereof with a base) can also vary within wide limits and will be fitted to the individual requirements in each particular case. In general, a ratio of between 1 part of antibiotic of general formula I to 5 parts of any one ⁇ -lactamase inhibitor of general formula II or III-XIII and 20 parts of antibiotic of general formula I to 1 part of any one ⁇ -lactamase inhibitor of general formula II or III-XIII should be appropriate.
- the dosage of the compound of formula I and of the pharmaceutically compatible salts thereof with bases can vary within wide limits and will be fitted in each particular case to the individual requirements and to the ⁇ -lactamase producing pathogen to be controlled. In general, a dosage of about 0.1 to about 2 g of antibiotic administered one to four times over a 24 hours period should be appropriate.
- the titled compound was prepared following scheme 1. (2Z)-3- ⁇ [1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy ⁇ -2- ⁇ 2-[(triphenylmethyl)amino](1,3-thiazol-4-yl) ⁇ -3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1990, 1450 and WO-A-02/22613 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinyl hydroxysulfonate was prepared according to the procedures described in J. Am. Chem. Soc, 1982, 6053 and J. Antibiotics, 1985, 1536.
- the titled compound was prepared following scheme 8. (2z)-3- ⁇ [1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy ⁇ -2- ⁇ 4-[(triphenylmethyl)amino]pyrimidin-2-yl ⁇ -3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1984, 546 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinesulfonic acid was prepared according to the procedures described in J. Org. Chem. 1980, 410.
- the titled compound was prepared following scheme 1. (2Z)-3- ⁇ [1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy ⁇ -2- ⁇ 2-[(triphenylmethyl)amino](1,3-thiazol-4-yl) ⁇ -3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1990, 1450 and WO-A-02/22613 and (2S)-2-((3S,4S)-3-amino-4-methyl-2-oxoazetidinyloxy)propanoic acid was prepared according to the procedure described in J. Med. Chem. 1985, 1447 and J. Antibiotics, 1985, 813.
- the titled compound was prepared following scheme 1. (2Z)-3- ⁇ [1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy ⁇ -2- ⁇ 5-chloro-2-[(triphenylmethyl)amino](1,3-thiazol-4-yl) ⁇ -3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1990, 1450 and WO-A-02/22613 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinyl hydroxysulfonate was prepared according to the procedure described in J. Am. Chem. Soc, 1982, 6053 and J. Antibiotics, 1985, 1536.
- N- ⁇ (3S,4S)-2-oxo-1-(phenylmethoxy)-4-[(1,1,2,2-tetramethyl-1-silapropoxy)methyl]azetidin-3-yl ⁇ (tert-butoxy)carboxamide (2.80 g, 6.41 mmol) was dissolved in THF (50 mL) and pyridine (5 mL). Pyridine-hydrofluoride complex (4.0 mL, 2.6 eq of pyridine, 24 eq of HF) was added at ⁇ 20° C. After 10 min, the mixture was warmed up at room temperature and stirred for 3.5 h.
- Phosphoric acid buffer (0.025 M, KH 2 PO 4 /Na 2 HPO 4 ; ratio 1/1,400 mL) was added and the resulting solution was extracted with ethyl acetate (3 ⁇ 100 mL). The organic phase was dried over Na 2 SO 4 and the solvent was evaporated in vacuo. 2.04 g of the desired product was obtained and used for the next step.
- the titled compound was prepared from ⁇ (2S,3S)-3-[(tert-butoxy)carbonylamino]-1-hydroxy-4-oxoazetidin-2-yl ⁇ methyl aminooate according to the procedures described in J. Med. Chem. 1985, 1447 and J. Antibiotics, 1985, 813.
- Compound 13 was prepared in analogy to the procedures described in WO-A-02/22613.
- the corresponding azetidinone ring or formula B was prepared in analogy to the procedures described in J. Antibiotics 1986, 76.
- Compound 15 was prepared in analogy to the procedures described in WO-A-02/22613.
- the corresponding heterocycle of the carboxylic acid derivative of formula A was prepared in analogy to the procedures described in Russ. J. Org. Chem. 1995, 240 and J. Antibiotics 1983 1020.
- Compound 16 was prepared in analogy to the procedures described in WO-A-02/22613.
- the corresponding heterocycle of the carboxylic acid derivative of formula A was prepared in analogy to the procedures described in Z. Chem 1975, 233 and J. Antibiotics 1983, 1020.
- Compound 17 was prepared in analogy to the procedures described in WO-A-02/22613.
- the corresponding heterocycle of the carboxylic acid derivative of formula A was prepared in analogy to the procedures described in U.S. Pat. No. 4,394,504 and J. Antibiotics 1983, 1020.
- Compound 20 was prepared in analogy to the procedures described in WO-A-02/22613.
- the corresponding heterocycle of the carboxylic acid derivative of formula A was prepared in analogy to the procedures described in U.S. Pat. No. 4,394,504 but using 2-amino-6-picoline as starting material.
- Compound 44 was prepared in analogy to the procedures described in example 12 and J. Antibiotics 1983, 1201 for preparing the compound of formula B.
- Compound 45 was prepared in analogy to the procedures described in example 12 and J. Antibiotics 1983, 1201 for preparing the compound of formula B. Procedures of example 12 were used for preparing the compound of formula A.
- Compound 46 was prepared in analogy to the procedures described in example 12 and J. Antibiotics 1983, 1201 for preparing the compound of formula B. Procedures of example 13 were used for preparing the compound of formula A.
- the titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available N-methyl nicotinamide as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-aminopyridine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available isoquinoline as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available isonicotinamide as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 5,6,7,8-tetrahydroisoquinoline as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-aminopyridine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and 3-[N-(carbamoylmethyl)carbamoyl]pyridine as starting materials.
- 3-[N-(carbamoylmethyl)carbamoyl]pyridine was prepared by reacting the commercially available nicotinyl chloride hydrochloride with glycinamide hydrochloride.
- the titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available nicotinoyl chloride hydrochloride and cyclopropylamine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(dimethylamino)pyridine as starting materials.
- Nicotinoyl chloride hydrochloride (286 mg, 1.61 mmol, 1.0 eq) was added at room temperature to a stirred solution of (S)-3-amino-1-N—BOC-pyrrolidine (300 mg, 1.61 mmol, 1.0 eq) in CH 2 Cl 2 (9 mL), followed by triethylamine (337 ⁇ L, 2.42 mmol, 1.5 eq). After stirring overnight at room temperature, the reaction mixture was extracted and the organic layer was dried over Na 2 SO 4 , filtered and evaporated to afford 457 mg of the expected compound.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available nicotinamide as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3,4-pyridine dicarboxamide as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 4-isopropyl pyridine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available methyl-5-methylnicotinate as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 2-methyl nicotinic acid methyl ester as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3-carboxypyridine methyl ester as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 4-propionyl pyridine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 4-pyridine carbothioamide as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available ethyl-3-pyridyl acetate as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3-(trifluoromethyl)pyridine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3,4-lutidine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3-benzylpyridine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3-phenyl pyridine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available nicotinoyl chloride hydrochloride and (R)-3-amino-1-N—BOC-pyrrolidine as starting materials.
- the titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and a the commercially available 4-amino-3-pyridinecarboxamide as starting materials.
- the titled compound has been prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 5-methyl nicotinamide as starting materials.
- the titled compound has been prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and 3-pyridylcarbamide.
- 3-Pyridylcarbamide was prepared according to the procedure described in Heterocycles 1983, 1899.
- the titled compound has been prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 5-amino-3-pyridinecarboxamide as starting materials.
- Triethylamine (7.36 mL, 52.82 mmol, 1.1 eq) was added at 0° C. to a stirred solution of N—BOC-1,4-phenylene diamine (10.00 g, 48.02 mmol, 1.0 eq) in CH 3 CN (240 mL), followed by 9-fluorenylmethyloxycarbonyl chloride (14.90 g, 57.62 mmol, 1.2 eq). The resulting mixture was allowed to come at room temperature. After 4 hours stirring at room temperature, the reaction mixture was filtered to afford 20.60 g of the crude expected product as a white powder which was used in the next step without any further purification.
- N,N′-Disuccinimidylcarbonate (16.20 g, 63.26 mmol, 1.1 eq) was added at room temperature to a stirred solution of N-(4-aminophenyl)(fluoren-9-ylmethoxy)carboxamide (20.00 g, 60.53 mmol, 1.0 eq) in CH 3 CN (1100 mL). After stirring overnight at room temperature, the reaction mixture was filtered to afford 28.50 g of the expected crude product as a white powder.
- N,N′-Disuccinimidylcarbonate (5.49 g, 21.44 mmol, 1.1 eq) was added at room temperature to a stirred solution of N-(4-aminophenyl)( ⁇ 2-[(tert-butoxy)carbonylamino]ethyl ⁇ amino)carboxamide (6.75 g, 19.49 mmol, 1.0 eq) in CH 3 CN (350 mL). After stirring overnight at room temperature, the reaction mixture was filtered and to afford 9.70 g of the expected crude product as a light brown solid.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-amino-1,2-benzenediol as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1-acetamido-3-aminobenzene as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-aminobenzene sulfonamide as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(dimethylamino)aniline as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-aminobenzoic acid and 2-(dimethylamino)ethylamine as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-aminobenzoic acid and glycinamide hydrochloride as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-(1,3-oxazol-5-yl)aniline as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 5(6)-aminobenzoimidazolone as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-aminobenzoic acid ethyl ester as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-(hydroxymethyl)aniline as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and 2,2-oxydiethylamine dihydrochloride (Eur. J. Org. Chem. 2002, 3004) as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and 1-BOC-4-amino-piperidine hydrochloride as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and 1-BOC-piperazine as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available N—BOC-1,4-phenylene diamine as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 2-aminobenzamide as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and N-carbobenzoxyglycine as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and N-(2-aminoethyl)morpholine as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine, N-(2-aminoethyl)morpholine and ethylenediamine as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-aminobenzamide and 2-bromoethanamine as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available N—BOC-1,4-benzene diamine as starting materials.
- the titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and commercially available 3,4-dihydroxybenzylamine.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(morpholinomethyl)aniline as starting materials.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-morpholinoaniline as starting materials.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-morpholino-4-ylaniline as starting materials.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available tert-butyl 4-(3-aminobenzyl)piperazine-1-carboxylate as starting materials.
- the final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and commercially available (S)-3-amino-1-N—BOC-pyrrolidine as starting materials.
- the final deprotetion step, using trifluoroacetic acid, has been performed in analogy to example 1.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and also commercially available (S)-3-amino-1-N—BOC-pyrrolidine as starting materials.
- the final deprotetion step, using trifluoroacetic acid, has been performed in analogy to example 1.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(2-morpholin-4-ylethoxy)aniline as starting materials.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-(2-morpholin-4-ylethoxy)aniline as starting materials.
- the titled compound has been prepared following scheme and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(1-piperidino)aniline as starting materials.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 6-morpholinopyridine-3-amine as starting materials.
- the titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(4-methylpiperazino)aniline as starting materials.
- the titled compound was prepared following scheme 12 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and 2-[1-(dimethylamino)-2-oxohydropyrimidin-4-ylthio]acetic acid. The resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- 2-[1-(dimethylamino)-2-oxohydropyrimidin-4-ylthio]acetic acid was prepared from the 3-(dimethylamino)-6-sulfanyl-3-hydropyrimidin-2-one (U.S. Pat. No. 4,348,518) and bromoacetic acid according to the procedures described in Russian J. Org. Chem. 2000, 761.
- the titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and the 2-[4-(2-pyridylacetylamino)phenylthio]acetic acid as starting materials.
- the resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- the titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and 2- ⁇ 1-[2-(dimethylamino)ethyl]-1,2,3,4-tetraazol-5-ylthio ⁇ acetic acid as starting materials.
- the resulting compound was then′sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- the titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and the commercially available 2-(5-methyl-1,3,4-thiadiazol-2-ylthio)acetic acid as starting materials.
- the resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- the titled compound has been prepared following scheme and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and [5-(2-dimethylaminoethylcarbamoyl)pyridin-2-ylthio]acetic acid as starting materials.
- the titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and [4-(2-tert-butoxycarbonylaminoethylcarbamoyl)phenylthio]acetic acid as starting materials.
- the final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- the titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and ⁇ 4-[(2-tert-butoxycarbonylaminoethyl)methylcarbamoyl]phenylthio ⁇ acetic acid as starting materials.
- the final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- the titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and ⁇ 4-[2-(tert-butoxycarbonylmethylamino)ethylcarbamoyl]phenylthio ⁇ acetic acid as starting materials.
- the final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- the titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and 4-(4-carboxymethylthiobenzoyl)piperazine-1-carboxylic acid tert-butyl ester as starting materials.
- the final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- 4-(4-Carboxymethylsulfanyl-benzoyl)piperazine-1-carboxylic acid tert-butyl ester was prepared in analogy to the procedure described in example 80 using 4-ethoxycarbonylmethylthiobenzoic acid and commercially available piperazine-1-carboxylic acid tert-butyl ester.
- the titled compound has been prepared following scheme and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and [4-(2-tert-butoxycarbonylaminoethoxy)phenylthio]acetic acid as starting materials.
- the final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- [4-(2-Tert-butoxycarbonylaminoethoxy)phenylthio]acetic acid was prepared in analogy to the procedure described in J. Med Chem. 2000, 721 using first bromo acetic ethyl ester and then the commercially available (2-bromoethyl)carbamic acid tert-butyl ester.
- the titled compound has been prepared following scheme and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and [4-(2-tert-butoxycarbonylaminoethylcarbamoyl)phenylthio]acetic acid as starting materials.
- the final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- the titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and ⁇ 4-[2-(tert-butoxycarbonylmethylamino)ethylcarbamoyl]phenylthio ⁇ acetic acid as starting materials.
- the final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- the titled compound was prepared following scheme 11 in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3,4-pyridine dicarboxamide as starting materials.
- the titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and the (4S) 4,5-dihydro-2-(2-hydroxyphenyl)-4-thiazolecarboxylic acid (JP59141554). The resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- the titled compound was prepared following scheme 11 in analogy to example 22 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) and the commercially available 4-amino-5-fluoro pyridine-2-one.
- the titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and 2-amino-2-(4carbamoylphenyl)acetic acid, obtained according to the procedure described in Eur. J. Med. Chem. 2003, 289 from 4- ⁇ [(tert-butoxy)carbonylamino](methoxycarbonyl)methyl ⁇ benzoic acid (WO-A-2000/076970). The resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- the titled compound was prepared following scheme 13 in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) and 1-(1H-imidazol-1-ylcarbonyl)-4-methyl-piperazine (Ind. J. Chem., Section B, 1987, 748).
- the titled compound was prepared following the procedure described for example 18 of U.S. Pat. No. 6,566,355 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and 4-[(3-phenyl-1,2-oxaziridin-2-yl)carbonylamino]benzamide.
- the resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- Antimicrobial activity of the compounds and of their combinations was determined against a selection of organisms according to the standard procedures described by the National Committee for Clinical Laboratory Standards (National Committee for Clinical Laboratory. Standards (2000). Methods for Dilution Antimicrobial Susceptibility Tests for Bacteria That Grow Aerobically-Fifth Edition: Approved Standard M7-A5. NCCLS, Wayne, Pa., USA).
- the compounds to be tested were dissolved in 100% DMSO or sterile broth according to their aqueous solubility and were diluted to the final reaction concentration (0.06-32 ⁇ g/mL) in microbial growth media (IsoSensiTest Broth+16 ⁇ g/mL 2,2′-bipyridyl). In all cases the final concentration of DMSO incubated with the bacteria is less than or equal to 1%. For estimation of the minimal inhibitory concentrations (MIC), 2-fold dilutions of compounds were added to wells of a microtitre plate containing 10 6 bacteria/mL. Plates were incubated overnight at an appropriate temperature (30° C. or 37° C.) and optical densities assessed by eye.
- MIC minimal inhibitory concentration
- the MIC value is defined as the lowest compound concentration completely inhibiting visible growth of the test organism.
- Table 3 lists the MIC values obtained for two representative antibiotics of formula I when combined either with a compound of formula II or with a compound of formula III-XIII in comparison to the activity obtained with a combination involving the antibiotic of formula I with a compound of formula II and a compound of formula III-XIII together.
- Table 4 lists the activity of representative compounds of formula I alone or in combination with compounds of formula II and formula III-XIII.
- Table 5 lists the MIC values obtained for representative compounds of formula II with selected compounds of formula I and formula III-XIII.
- a pharmaceutical composition comprising a combination of a) an antibiotically active compound of the following formula I:
- R1 signifies SO 3 H, OSO 3 H, CRaRa′COOH, OCRaRa′COOH, 5-tetrazolyl, SO 2 NHRb or CONHRc,
- R7 signifies SO 3 H, OSO 3 H or OCRjRj′COOH
- R4′ signifies hydrogen, alkyl or CH(Rx′)Z′, wherein
- R18 signifies —S-alkyl, —S—(CH 2 ) 2 —NH—CH ⁇ NH or a group of the following two formulae
- Rk and Rl are individually selected from hydrogen, alkyl, 2-, 3-, 4-carboxyphenyl and sulfamoyl, or a pharmaceutically acceptable salt thereof; or b8) a boronate derivative of the general formula X:
- R19 signifies a 5-6 membered heteroaromatic ring which may be substituted with amino, alkylamino, dialkylamino or alkylsulfoxide, or a pharmaceutically acceptable salt thereof; or b9) a boronate derivative of the general formula XI:
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Abstract
A pharmaceutical composition, comprising a combination of an antibiotically active compound of the formula (I): with a β-lactamase inhibitor of one of the formulae (II) to (XIII) are active against Gram-negative bacteria, in particular such bacteria which have become resistant against antibiotics such as aztreonam, carumonam and tigemonam. Optionally the compositions may comprise another β-lactamase inhibitor of one of the formulae (II) to (XIII), particularly of formula (V) or formula (VI).
Description
- The present invention is concerned with pharmaceutical compositions and methods for treating infections caused by pathogenic Gram-negative bacteria.
- β-Lactam antibiotics have been widely used for the treatment of bacterial infections both in hospitals and in the general public. There are several classes of β-lactam antibiotics that have found clinical application, these include the penicillins, cephalosporins, cephamycins, carbacephems, oxacephems, carbapenems and monobactams.
- The efficiency of all of these classes to cure bacterial infections has been impaired by the appearance of bacteria that are resistant towards the antibiotics. The prevalent cause of this resistance in Gram-negative bacteria is the expression by the bacteria of enzymes known as β-lactamases that are able to hydrolyse the β-lactam antibiotics rendering them inactive. Bacteria are able to produce a variety of β-lactamases, including penicillinases, cephalosporinases, cephamycinases, carbapenemases, monobactamases, broad-spectrum β-lactamases and extended-spectrum β-lactamases.
- The possibility of rescuing individual β-lactam antibiotics by combination with a β-lactamase inhibitor that inactivates the β-lactamase before it can hydrolyse the β-lactam antibiotic has been demonstrated with clinically useful combinations between penicillins such as amoxicillin, ampicillin and ticarcillin and β-lactamase inhibitors such as clavulanic acid, sulbactam and tazobactam. Further, potential combinations have been described involving cephalosporins and newly developed β-lactamase inhibitors including bridged monobactams, penam sulfones, phosphonate esters, exomethylene penams and diazabicyclooctane derivatives.
- Monobactams have been regarded as stable towards many β-lactamases. However, there are now many strains of Gram-negative bacteria that exhibit β-lactamase-mediated resistance towards the monobactam antibiotics (aztreonam, carumonam and tigemonam).
- The present invention aims to provide improved medicaments with novel monobactam antibiotics and combinations of monobactam antibiotics with β-lactamase inhibitors that are active against aerobic Gram-negative bacteria that are resistant against treatments with monobactam antibiotics.
- The objective set is solved by a pharmaceutical composition, comprising a combination of
- a) an antibiotically active compound of the following formula I:
- in which
R1 signifies SO3H, OSO3H, CRaRa′COOH, OCRaRa′COOH, 5-tetrazolyl, -
-
- wherein Ra and Ra′ are independently selected from hydrogen; alkyl; allyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; alkylamino; dialkylamino; alkoxyalkyl and a 5-6 membered heteroaromatic ring which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen;
- wherein Rb is hydrogen; alkyl; alkoxycarbonyl; alkylaminocarbonyl; benzylaminocarbonyl in which the benzyl may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or phenylaminocarbonyl in which the phenyl may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; wherein Rc is hydrogen; alkyl; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; alkoxycarbonyl; SO2phenyl; SO2NHalkyl; or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen;
R2 and R3 independently signify hydrogen; alkyl; alkenyl; alkynyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; azido; halogen; dihalogenomethyl; trihalogenomethyl; alkoxycarbonyl; carboxyl; sulfonyl or CH2X1, - wherein X1 is azido; amino; halogen; hydroxyl; cyano; carboxyl; aminosulfonyl; alkoxycarbonyl; alkanoylamino; phenylaminocarbonyl; alkylaminocarbonyl; aminocarbonyl; carbamoyloxy; alkylaminosulfonyl; phenylaminosulfonyl in which the phenyl may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen;
R4 signifies hydrogen; alkyl; C(Rx)(Ry)Z, - wherein Rx and Ry are independently selected from hydrogen; alkyl; allyl; (C3-C6)cycloalkyl; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; (C2-C7) alkene and (C2-C7) alkyne; or Rx and Ry taken together may form an alkylene bridge —(CH2)n— with n being an integer number from 2 to 6; and
Z is COOH; CH2N(OH)COR′ wherein - R′ is hydrogen, alkyl, alkylamino, alkoxy, benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen, phenyl which may be substituted with 1 to 5 substituents selected from from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen, or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen;
or Z is one of the following six groups
- in which groups
-
- Rd, Re and Rf are independently selected from hydrogen; alkyl; amino; monoalkylamino; carboxylaminoalkyl; alkoxycarbonyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; diphenylmethyl; trityl; and ORg wherein
- Rg is hydrogen; alkyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino and halogen; or phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino and halogen;
- or, when Re and Rf are vicinal substituents, Re and Rf taken together may also be —O—CH═CH—CH2—, —O—CH2—CH2—O—, —CH2—CH2—CH2—, —CH2—CH2—CH2—CH2—, —CH═CH—CH═CH— or CH═C(OH)—C(OH)═CH—;
- Ri is hydrogen; alkyl; alkylamino; alkoxy; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; phenyl which may be substituted with 1 to 5 substituents selected from alkyl and hydroxyl; or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen;
R5 signifies hydrogen, alkyl, halogenomethyl, dihalogenomethyl, trihalogenomethyl, alkoxy, formylamino or alkylcarbonylamino;
R6 signifies phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, carbonylamino and halogen;
or a pharmaceutically acceptable salt thereof;
and one or more β-lactamase inhibitors selected from the following groups b1) to b11):
b1) a bridged monobactam derivative of the following formula II:
- Rd, Re and Rf are independently selected from hydrogen; alkyl; amino; monoalkylamino; carboxylaminoalkyl; alkoxycarbonyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; diphenylmethyl; trityl; and ORg wherein
- in which:
R7 signifies SO3H, OSO3H or OCRjRj′COOH, -
- wherein Rj and Rj′ are independently selected from hydrogen; alkyl; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; alkylamino and alkoxyalkyl;
R8 is alkoxycarbonylamino, the acyl residue of an α or β-amino acid, or a residue of the formula Q-(X)r—Y—, - wherein Q is a 3-6 membered ring which optionally contains nitrogen, sulphur and/or oxygen and which is optionally fused to a phenyl ring or to a 5-6 membered heterocyclic ring and which is optionally substituted with 1 to 4 substituents selected from alkyl, allyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, carboxamide which may be substituted, carboxylic acid, carbonylalkoxy, aminocarbonyl, alkylaminocarbonyl, halogen, halogenomethyl, dihalogenomethyl, trihalogenomethyl, sulfamide, substituted sulfamide with substituents selected from alkyl, phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino and halogen and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, halogen and benzyl, urea which may be substituted with alkyl, aminoalkyl or alkoxy and carbamate which may be substituted with alkyl, aminoalkyl or alkoxy,
- X signifies a linear spacer of from 1 to 6 atoms length and containing carbon, nitrogen, oxygen and/or sulphur atoms, of which up to 2 atoms can be nitrogen atoms and 1 atom can be oxygen or sulphur,
- r is an integer of from 0 to 1; and
- Y is selected from —CO—, —CS—, —NHCO—, —NHCONH— and —SO2—;
or a pharmaceutically acceptable salt thereof,
or
b2) a monobactam derivative of the general formula III:
- wherein Rj and Rj′ are independently selected from hydrogen; alkyl; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; alkylamino and alkoxyalkyl;
- in which
-
- R4′ signifies hydrogen, alkyl or CH(Rx′)Z′, wherein
- Rx′ is selected from hydrogen; (C1-C6)alkyl; allyl; phenyl and (C3-C6)cycloalkyl; and Z′ signifies COOH or a group of one of the following two formulae:
-
- in which Rd′ is hydrogen or hydroxy; and
R6 is as defined for formula I; or a pharmaceutically acceptable salt thereof,
or
b3) a penam sulfone derivative of the general formulae IV or V:
- in which Rd′ is hydrogen or hydroxy; and
- in which
-
- R9 signifies COOH or a 5-6 membered monocyclic or polycyclic heteroaromatic group;
- R10 signifies hydrogen or halogen;
- R11 signifies CH2R12; CH═CHR12 wherein R12 is hydrogen, halogen, cyano, carboxylic acid, acyl such as acetyl, carboxamide which may be substituted, alkoxycarbonyl or a 5-6 membered heteroaromatic ring which is optionally substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or which is optionally fused with a 5-6 membered heteroaromatic ring; CH═NR12′ wherein R12′ is amino, alkylamino, dialkylamino, aminocarbonyl, acylamino such as acetylamino, hydroxy, alkoxy,
or a pharmaceutically acceptable salt thereof;
or
b4) an oxapenam derivative of the general formula VI:
- in which
-
- R13 signifies OR14; S(O)nR14 or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; whereby n=0, 1 or 2, and R14 is hydrogen, alkyl, (C2-C7) alkene, (C2-C7) alkyne or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
or a pharmaceutically acceptable salt thereof;
or
b5) a penem derivative of the general formula VII:
- R13 signifies OR14; S(O)nR14 or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; whereby n=0, 1 or 2, and R14 is hydrogen, alkyl, (C2-C7) alkene, (C2-C7) alkyne or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
- in which
-
- R15 signifies a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or which is optionally fused with a 5-6 membered heteroaromatic ring and/or which is optionally bound to the exo-methylene group over a —CH═CH— spacer being preferably in the (E)-configuration,
or a pharmaceutically acceptable salt thereof;
or
b6) a cephem sulfone derivative of the general formula VIII:
- R15 signifies a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or which is optionally fused with a 5-6 membered heteroaromatic ring and/or which is optionally bound to the exo-methylene group over a —CH═CH— spacer being preferably in the (E)-configuration,
- in which
-
- R16 signifies COOR17, whereby R17 signifies hydrogen or alkyl; or a 5-6 membered heteroaromatic ring which is optionally fused with a 5-6 membered heteroaromatic ring being optionally substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, halogen; and/or being optionally bound to the exo-methylene group over a —CH═CH— spacer being preferably in the (E)-configuration,
or a pharmaceutically acceptable salt thereof;
or
b7) a carbapenem derivative of the general formula IX:
- R16 signifies COOR17, whereby R17 signifies hydrogen or alkyl; or a 5-6 membered heteroaromatic ring which is optionally fused with a 5-6 membered heteroaromatic ring being optionally substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, halogen; and/or being optionally bound to the exo-methylene group over a —CH═CH— spacer being preferably in the (E)-configuration,
- in which R18 signifies —S-alkyl, —S—(CH2)2—NH—CH═NH or a group of the following two formulae
- wherein Rk and R1 are individually selected from hydrogen, alkyl, 2-, 3-, 4-carboxyphenyl and sulfamoyl, or a pharmaceutically acceptable salt thereof;
or
b8) a boronate derivative of the general formula X: - wherein R19 signifies a 5-6 membered heteroaromatic ring which may be substituted with amino, alkylamino, dialkylamino or alkylsulfoxide, or a pharmaceutically acceptable salt thereof;
or
b9) a boronate derivative of the general formula XI: - wherein
-
- R20 and 21 are independently selected from a 5-6 membered heteroaromatic ring or phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
or a pharmaceutically acceptable salt thereof;
or
b10) a phosphonate derivative of the general formula XII:
- R20 and 21 are independently selected from a 5-6 membered heteroaromatic ring or phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
- wherein
-
- R22 is selected from a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen and which is optionally fused with a 5-6 membered heteroaromatic ring; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
or a pharmaceutically acceptable salt thereof;
or
b11) a diazabicyclooctane derivative of the general formula XIII:
- R22 is selected from a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen and which is optionally fused with a 5-6 membered heteroaromatic ring; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
- in which
-
- R23 signifies hydrogen, carboxylic acid, alkoxycarbonyl or carboxamide which may be substituted, and
- R24 signifies SO3H, OSO3H or OCRjRj′COOH, wherein Rj and Rj′ are as defined for formula II,
or a pharmaceutically acceptable salt thereof.
- As a preferred embodiment of the invention, the pharmaceutical compositions may comprise two or more compounds selected from one of the formulae II to XIII of b1) to b11), these two or more compounds being different from each other.
- The object set is also solved by the novel monobactam antibiotics of formula Ia as described hereinafter, which may be used in the same combinations as outlined above.
- Further objects of the invention are visible from the description hereinafter and from the appended claims.
- It has surprisingly been found that the efficacy of monobactam antibiotics of the formula I against aerobic Gram-negative bacteria can be potentiated by co-using a β-lactamase inhibitor according to any one of the formulae II to XIII.
- In formula I, when the oxoazetidine ring is lying in the plane of the paper, preferably R3 points downwards from the plane, and R2 points upwards from the plane.
- For the purposes of the present invention, the compounds of the above formula III are not considered as “antibiotically active” compounds in the sense of claim 1. The compounds in formula I have the oximino group predominantly the “syn” configuration shown in formula I, whereas the compounds III have the oximino group specifically in the “anti” configuration shown in formula III.
- The term “alkyl”, as used in the present application, preferably means straight-chain or branched (C1-C7)alkyl such as in particular methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, isopropyl, isobutyl, tert-butyl or neopentyl.
- The term “alkoxy”, as used in the present application, preferably means straight-chain or branched (C1-C7)alkoxy, such as in particular methoxy, ethoxy, propoxy, 1- or 2-butoxy, 1-, 2-, or 3-pentyloxy, 1-, 2- or 3-hexyloxy, 1-, 2-, 3-, or 4-heptyloxy or tert-butoxy. The term “alkylhydroxyl” as also used, shall be considered synonymous to “alkoxy”; in particular for the alkyl in “alkylhydroxyl” the same definition shall apply as given above for “alkyl”.
- The term “carboxamide which may be substituted” preferably has the meaning that the carboxamide has 0 to 2 hydrogen atoms attached to the amino moiety, with the remainder of the substituents on the amino moiety being alkyl or phenyl which may be substituted.
- The term “imine which may be substituted” preferably means that the imine bears at the imine nitrogen hydrogen, alkyl, phenyl which may be substituted or benzyl which may be substituted.
- The terms “optionally substituted phenyl” and “optionally substituted benzyl”, if given without specifically indicated substituents, shall preferably mean that the phenyl or benzyl is optionally substituted with 1 to 5 substituents selected from alkyl, alkoxy, dialkylamino and halogen, wherein the “alkyl” itself and the alkyl in dialkylamino and alkoxy has the meaning as defined above.
- The term “linear spacer”, as used in the present application, preferably means a linear divalent group selected from —O—, —S—, —NH—, —NH—NH—, —CH2—, —CO—, —CH2O—, —CH2CH2—, —CH═CH—, —CH2NH—, —S—CH2—, —SO2—, —CH2—, —O—CH2—, —S—CH2CH2—, —CH2CH2—NH—, —CH2—NH—CO—CH2CH2—, —CH2—NH—CO—O—CH2CH2, —CH2—NH—CO—NH—CH2CH2, —CH2—O—CO—NH—CH2CH2—, —CH(OH)—, —CH(COOH)—, —CH(OSO3H)—, —CH(OCONH2)— and —CH[CH(CH3)2]—.
- Some compounds of formula I may, when they contain an acidic group (such as when R1 is SO3H, OSO3H, CRaRa′COOH, OCRaRa′COOH or SO2NHRb) be present as a salt with a pharmaceutically acceptable inorganic base (e.g. NaOH, KOH, NH3, K2CO3, Na2CO3, Na2HPO4 or K2HPO4) or organic base (e.g. NEt3, HNiPr2, triethanolamine, TRIS or basic amino acids such as arginine and lysine). The use of such salts of compounds of formula I is encompassed by the invention. Also, some of the compounds of formula I, when they contain both an acidic group (such as when R1 is SO3H, OSO3H, CRaRa′COOH, OCRaRa′COOH or SO2NHRb) and a basic group (such as when R6 is 2-amino-1,3-thiazol-4-yl, 5-amino-1,2,4-thiadiazol-3-yl, 5-amino-1,2,4-oxadiazol-3-yl, 3-aminoisoxazol-5-yl, 5-amino-1-methylpyrazol-3-yl, 5-aminopyrazol-3-yl, 6-amino-2-pyridyl, 4-aminopyrimidin-2-yl, 2-carbonylamino-1,3-thiazol-4-yl or 2-amino-5-chloro-1,3-thiazol-4-yl) may form an inner, zwitterionic salt; such inner salts are also intended to be encompassed by the claims.
- When R4 contains a 4-pyridone moiety, wherein Rd is selected from hydrogen and hydroxy, there is the possibility of tautomerism:
- The invention intends to encompass the use of any such tautomers.
- A first group of preferred examples of compounds of the formula I for the combinations of the invention are aztreonam, carumonam, tigemonam, and compounds according to the following table 1 (R5 is in these compounds always H):
-
TABLE 1 Compound number R1 R2 R3 R4 R6 1 SO3H H CH3 2 SO3H H CH3 3 SO3H H CH3 4 SO3H H CH3 CH3 5 SO3H H CH3 6 SO3H H CH3 7 SO3H H CH3 8 SO3H H CH3 9 SO3H H H 10 SO3H H CH3 CH2CH2N(OH)COCH3 11 SO3H H CH3 12 OSO3H H CH3 13 H CH3 14 SO2NH2 H CH3 15 SO3H H CH3 16 SO3H H CH3 17 SO3H H CH3 18 SO3H H CH3 19 SO3H H CH3 20 SO3H H CH3 21 SO3H H CH3 22 OCH2COOH H CH3 23 OCH(CH3)COOH H CH3 24 OSO3H CH2F H 25 OSO3H CH2OCONH2 H 26 OSO3H CH3 CH3 27 SO3H H CH3 28 SO3H H CH3 29 OSO3H H CH3 30 OSO3H H CH3 31 OSO3H CH3 CH3 32 OSO3H CH3 CH3 33 OCH2COOH CH3 CH3 34 OCH2COOH CH3 CH3 35 OCH2COOH CH3 CH3 36 OCH2COOH H CH3 37 OCH2COOH H CH3 38 SO3H CH3 CH3 39 SO3H CH3 CH3 40 SO3H CH3 CH3 41 OCH2COOH CH2OCONH2 H 42 OCH2COOH CH2OCONH2 H 43 OCH2COOH CH2OCONH2 H 44 OCH2COOH CH2F H 45 OCH2COOH CH2F H 46 OCH2COOH CH2F H 47 OSO3H CH2OCONH2 H 48 OSO3H CH2OCONH2 H - The numbering of the compounds as given in above table 1 is used in the following for the sake of conciseness.
- The compounds of the above table 1 are, when their compound numbers are underscored and bold, part of the present invention.
- Among the compounds of formula I which are more preferred in the combinations of the invention and which are novel per se are those of the following formula Ia:
- wherein
Rz is SO3H or CRaRa′COOH, wherein Ra and Ra′ are as defined for formula I;
R2, R3, R5 and R6 are as defined for formula I;
R4 is CH2Z; whereby Z is a group of one of the formulae - wherein Rd, Re and Rf are as defined for the compounds of formula I; and the pharmaceutically acceptable salts or inner salts thereof. This first group of compounds forms part of the invention. When Rz is SO3H, then preferably both R2 and R3 are methyl. When Rz is CRaRa′COOH, then R2 is preferably selected from hydrogen, methyl, fluoromethyl and carbamoyloxymethyl; and R3 is preferably selected from or hydrogen and methyl; and more preferably here, the absolute configuration at the carbon atom bearing R2 and R3 is (S). Preferably, Ra and Ra′ are each hydrogen. Preferably for all compounds of formula Ia, the Rd, Re and Rf are individually selected from hydrogen and hydroxy, with the proviso that at least two of Rd, Re and Rf are hydroxy (most preferably Rd and Re are hydroxy and Rf is hydrogen). R5 is preferably hydrogen. R6 is preferably an optionally amino-substituted and optionally chloro-substituted 5-6-membered heteroaromatic ring, this ring being more preferably selected from 2-amino-1,3-thiazol-4-yl, 5-amino-1,2,4-thiadiazol-3-yl, 5-amino-1,2,4-oxadiazol-3-yl, 3-aminoisoxazol-5-yl, 5-amino-1-methylpyrazol-3-yl, 5-aminopyrazol-3-yl, 6-amino-2-pyridyl, 4-aminopyrimidin-2-yl, 2-carbonylamino-1,3-thiazol-4-yl, 2-amino-5-chloro-1,3-thiazol-4-yl and 2-thienyl.
- More preferred examples of the compound of formula Ia are the compounds (12), (22), (23), (24), (25), (26), (29), (30), (31), (32), (33), (34), (35), (36), (37), (41), (42), (43), (44), (45), (46), (47) and (48) of above table 1. The most preferred compounds of formula Ia are compounds (22), (23), (26) and (31).
- The compounds of formula Ia, if Rz is SO3H, can be made by a methodology as outlined in scheme 4 below, until the R2,R3-disubstituted 3-amino-2-oxoazetidine hydroxysulfonate, and reacting this further in a manner known per se to connect the 3-amino substituents. The compounds of formula Ia, if Rz is CRaRa′COOH, can be prepared following the synthesis scheme of compounds II to X as described in U.S. Pat. No. 4,939,253 (column 15, line 26 to column 17, line 25), and reacting the obtained oxoazetidine X further according to scheme 1 described hereinafter.
- A second group of compounds of formula I which is preferred in the combinations of the invention and is novel are those of the following formula Ib:
- and the pharmaceutically acceptable salts thereof, wherein the residues R1, R2, R3, R4 and R5 are as defined for formula I. This second group of compounds also forms part of the invention. Preferably, in these compounds R1 is SO3H, R2 is H, R3 is methyl and R4 is C(Rx)(Ry)Z; whereby Rx=Ry=H, and Z is a group of one of the formulae
- wherein Rd, Re and Rf are individually selected from hydrogen and hydroxy, with the proviso that at least two of Rd, Re and Rf are hydroxy (most preferably Rd and Re are hydroxy and Rf is hydrogen).
- The antibiotically active monobactams of formula I may firstly be combined with
- b1) β-lactamase inhibitors of the above general formula II.
- In formula II, R8 is preferably of the formula Q-(X)r—CO—. The following subgroups are more preferable within this formula:
- a) With X═—CH2— and r=1; wherein Q is a pyridinium group which may be substituted with one to three substituents, preferably one to two substituents, selected from alkyl; perfluoroalkyl, in particular trifluoromethyl; phenyl; benzyl; RuRvN—, wherein Ru and Rv are independently selected from hydrogen, alkyl, cycloalkyl, pyrrolidinyl, carbamoyl and N-(carbamoylalkyl)carbamoyl, or wherein Ru and Rv taken together form an alkylene bridge —(CH2)—w, with w being an integer number of 3 to 6; alkylcarbonyl; RuRvNCO—, wherein Ru and Rv are as defined before; (alkoxycarbonyl)alkyl; thiocarbamoyl and alkoxycarbonyl; or wherein Q is a pyridinium group which is fused with a 5-6 membered carbocycle; and thioamide. Examples within this subgroup are pyridinium, 2-, 3- or 4-aminopyridinium, 3-N-methylaminopyridinium, 3-N,N-dimethylaminopyridinium, 4-(N-methylamino)pyridinium, 4-(N,N-dimethylamino)pyridinium, 3-carbamoylpyridinium, 3-(N-methylcarbamoyl)pyridinium, 3-(N,N-dimethylcarbamoyl)pyridinium, 4-carbamoylpyridinium, 4-(N-methylcarbamoyl)pyridinium, 4-(N,N-dimethylcarbamoyl)pyridinium, 3-(N-cyclopropylcarbamoyl)pyridinium, 4-(N-cylopropylcarbamoyl)pyridinium, 4-(N-methylcarbamoyl)pyridinium, 3-(methoxycarbonyl)pyridinium, 3-(ethoxycarbonyl)pyridinium, 4-(methoxycarbonyl)pyridinium, 4-(ethoxycarbonyl)pyridinium, 3-thiocarbamoylpyridinium, 3-(N-methylthiocarbamoyl)pyridinium, 3-(N,N-dimethylthiocarbamoyl)pyridinium, 4-thiocarbamoylpyridinium, 4-(N-methylthiocarbamoyl)pyridinium, 4-(N,N-dimethylthiocarbamoyl)pyridinium, 2,3-, 2,4-, 2,5-, 2,6-, 3,4-, 3,5-, 3,6-dimethylpyridinium, 3- or 4-isopropylpyridinium, 3- or 4-(trifloromethyl)pyridinium, 3- or 4-phenylpyridinium, 3- or 4-benzylpyridinium, quinolinium, isoquinolinium, 5,6,7,8-tetrahydroquinolinium and 5,6,7,8-tetrahydroisoquinolinium. In this subgroup, R7 is preferably —SO2 − or —OSO2 −, to form a pharmaceutically acceptable inner salt. The compounds II of this subgroup a) themselves are per se also part of the invention, but compound 102 of table 2 below is known from J. Med. Chem. 1998, 41(21), 3961, and does per se not form part of the invention.
- b) With X═—SCH2— and r=1; wherein Q is 1,2,3,4-tetrazol-5-yl, which may be substituted at its 1-position with a substituent selected from alkyl, aminoalkyl or alkoxyalkyl. Examples for this substituent are methyl, ethyl, propyl, butyl, 2-aminoethyl, 2-(N-methylamino)ethyl, 2-(N,N-dimethylamino)ethyl, 3-aminopropyl, 3-(N-methylamino)propyl, 3-(N,N-dimethylamino)propyl, 2-(N-ethylamino)ethyl, 2-(N,N-diethylamino)ethyl, 3-(N-ethylamino)propyl and 3-(N,N-diethylamino)propyl. In these compounds, R7 is preferably —SO3H or OSO3H, whereby the possibility of formation of an inner, acid addition salt may be allowed, to form a pharmaceutically acceptable inner salt.
- c) With X═—CH2NH2— and r=1; wherein Q is phenyl which may be substituted with one to two substituents selected from hydroxy and alkoxy, or a 5-6-membered heterocycle which preferably is selected from oxazol-2-yl, -3-yl or -4-yl, furan-2-yl or 3-yl, thiophen-2-yl or -3-yl, 1,3-thiazol-2-yl, -3-yl, -4-yl or -5-yl and which optionally may be substituted with one to two substituents selected from alkyl and alkoxy.
- d) With X═—NH2— and r=1, wherein Q is phenyl which may be substituted with one to two substituents selected from hydroxy; alkoxy and a substituted urea of the formula H2N[(CH2)mO]n(CH2)oHNCONH— or a substituted carbamate of the formula H2N[(CH2)mO]n(CH2)oHNCOO—, wherein m and o are independently integer numbers from 2 to 3 and n is an integer number from 0 to 1. Examples for Q here are phenyl, 3- and 4-hydroxyphenyl, 2,3-, 2,4-, 2,6-, 3,4-, 3,5- and 3,6-dihydroxyphenyl, 2-, 3- and 4-methoxyphenyl, 3-[N′-{2-(2-aminoethoxy)ethyl}carbamoylamino]phenyl, 3-[N′-{2-(3-aminopropoxy)ethyl}carbamoylamino]phenyl, 3-[N′-{3-(2-aminoethoxy)propyl}carbamoylamino]phenyl, 3-[N′-{3-(3-aminopropoxy)propyl}carbamoylamino]phenyl, 4-[N′-{2-(2-aminoethoxy)ethyl}carbamoylamino]phenyl, 4-[N′-{2-(3-aminopropoxy)ethyl}carbamoylamino]phenyl, 4-[N′-{3-(2-aminoethoxy)propyl}carbamoylamino]phenyl, 4-[N′-{3-(3-aminopropoxy)propyl}carbamoylamino]phenyl, 3-[N′-{2-(2-aminoethoxy)ethyl}carbamoyloxy]phenyl, 3-[N′-{2-(3-aminopropoxy)ethyl}carbamoyloxy]phenyl, 3-[N′-{3-(2-aminoethoxy)propyl}carbamoyloxy]phenyl, 3-[N′-{3-(3-aminopropoxy)propyl}carbamoyloxy]phenyl, 4-[N′-{2-(2-aminoethoxy)ethyl}carbamoyloxy]phenyl, 4-[N′-{2-(3-aminopropoxy)ethyl}carbamoyloxy]phenyl, 4-[N′-{3-(2-aminoethoxy)propyl}carbamoyloxy]phenyl and 4-[N′-{3-(3-aminopropoxy)propyl}carbamoyloxy]phenyl.
- Particularly preferred examples of the compounds of formula II are according to the following table 2
-
TABLE 2 Com- pound num- ber R7 R8 101 SO3 − 102 SO3 − 103 SO3 − 104 SO3 − 105 SO3 − 106 SO3 − 107 SO3 − 108 SO3 − 109 SO3 − 110 SO3 − 111 SO3 − 112 SO3 − 113 SO3 − 114 SO3 − 115 SO3 − 116 SO3 − 117 SO3 − 118 SO3 − 119 SO3 − 120 SO3 − 121 SO3 − 122 SO3 − 123 SO3 − 124 SO3 − 125 SO3 − 126 SO3 − 127 SO3 − 128 SO3 − 129 SO3 − 201 SO3Na 202 SO3Na 203 SO3H 204 SO3 − 205 SO3H 206 SO3Na 207 SO3H 208 SO3H 209 SO3H 210 SO3H 211 SO3H 212 SO3H 213 SO3H 214 SO3H 215 SO3H 301 SO3Na 302 SO3Na 303 SO3Na 304 SO3Na 305 SO3Na 306 SO3Na 307 SO3Na 308 SO3Na 309 SO3Na 310 SO3Na 311 SO3Na 312 SO3Na 313 SO3Na 314 SO3Na 315 SO3Na 316 SO3Na 317 SO3Na 318 SO3H 319 SO3Na 320 SO3Na 321 SO3Na 322 SO3H 323 SO3H 324 SO3H 325 SO3H 326 SO3H 327 SO3Na 328 SO3Na 329 SO3Na 330 SO3H 331 SO3H 332 SO3H 333 SO3Na 334 SO3H 335 SO3H 336 SO3H 337 SO3H 338 SO3H 339 SO3H 340 SO3H 341 SO3H 342 SO3H 343 SO3H 344 SO3H 401 SO3H 402 SO3H 403 SO3H 404 SO3Na 405 SO3Na 406 SO3H 407 SO3 − 408 SO3Na - The numbering of the preferred compounds of formula II as given in above table 2 is used in the following for the sake of conciseness.
- The compounds of the above table 2 are, when their compound numbers are underscored and bold, part of the present invention. Otherwise they are disclosed in EP-A-0-508 234, U.S. Pat. No. 6,566,355 and J. Med. Chem. 1998, 3961. These publications are hereby incorporated by reference.
- The compounds of formula I may also be combined with other β-lactamase inhibitors. These further inhibitors are:
- b2) monobactam derivatives of the above general formula III:
- Examples of these compounds are disclosed in WO-A-99/10324 and WO-A-98/47895, incorporated herein by reference. A preferred example of these compounds is 3-{(2E)-3-[(1,5-dihydroxy-4-oxo(2-hydropyridyl))methoxy]-2-(2-thienyl)-3-azaprop-2-enoylamino}(3S,4S)-4-methyl-2-oxoazetidinesulfonic acid disclosed in WO-A-98/47895.
- b3) penam sulfone derivatives of the above general formulae IV and V:
- Here, preferred examples of the 5-6 membered heteroaromatic ring as R12 are 1,3-thiazol-2-yl, 1,2,4-oxadiazol-3-yl and 1,2,3-triazol-1-yl.
- Particularly preferred examples of the compounds of formula V are sulbactam, tazobactam and the compounds of the following table (in parentheses the source):
-
R10 R11 Compound number hydrogen (1Z)-2-cyanovinyl 501 EP-A-0 640 607 hydrogen (1E)-3-oxo-but-1- 502 en-1-yl EP-A-0 640 607 hydrogen (1Z)-2-(1,3- 503 thiazol-2-yl)vinyl EP-A-0 640 607 hydrogen (1E)-2-(1,2,4- 504 oxadiazol-3- EP-A-0 640 607 yl)vinyl carboxymethylene CH3 (Bioorg. Med. Chem. Lett. 1995, 1513) hydrogen (1E)-2-methoxy-2- U.S. Pat. No. 5,686,441 azavinyl hydrogen (1E)-2,3-diaza-4- U.S. Pat. No. 5,686,441 oxo-pent-1-en-1-yl - The numbers used in the rightmost column of this table are also used in the tests for biological activity (see below).
- b4) oxapenam derivatives of the above general formula VI:
- A preferred compound of formula VI is clavulanic acid or a customary pharmaceutically acceptable salt thereof (i.e. a clavulanate).
- b5) penem derivatives of the above general formula VII:
- Here, preferred examples of the 5-6 membered heteroaromatic ring which may be bound over a —CH═CH— spacer as R15 are 1,2,3-triazol-4-yl, 2H,3H-imidazo[2,1-b]1,3-thiazolidin-6-yl and 2′-[1-methyl-1,2,3-triazolin-4-yl]vinylidene.
- Preferred examples for inhibitors of formula VII are e.g. 6-[(1-methyl(1,2,3-triazol-4-yl))methylene]-5-oxo-6aH-azetidino[2,1-b]1,3-thiazoline-3-carboxylic acid and 6-(2H,3H-imidazo[2,1-b]1,3-thiazolidin-6-ylmethylene)-5-oxo-6aH-azetidino[2,1-b]1,3-thiazoline-3-carboxylic acid (as described in Antimicrob. Agents Chemother. 1989, 1580 and Antimicrob. Agents Chemother. 1991, 1748), and 6-[(2E)-3-(1-methyl(1,2,3-triazolin-4-yl))prop-2-enylidene]-5-oxo-6aH-azetidino[2,1-b]1,3-thiazoline-3-carboxylic acid (as described in J. Antibiotic 1997, 50, 350).
- b6) cephem sulfone derivatives of the above general formula VIII:
- Here, a preferred example of the 5-6 membered heteroaromatic ring as R16 is 2-thienyl.
- Preferred examples are here 3-(acetyloxymethyl)-1,1,6-trioxo-7-(2-pyridylmethylene)-2H,7aH-azetidino[2,1-b]1,3-thiazine-4-carboxylic acid (Biorg. Med. Chem. Lett. 2000, 853 and Biorg. Med. Chem. Lett. 2000, 847) and 3-(acetyloxymethyl)-7-{[tert-butyl)oxycarbonyl]methylene}-1,1,6-trioxo-2H,7aH-azetidino[2,1-b]1,3-thiazine-4-carboxylic acid (J. Med. Chem. 1995, 38, 1022).
- b7) carbapenem derivatives of the above general formula IX:
- Here, preferred combinations for Rk and Rl are: Rk=hydrogen and Rl=sulfamoyl or 3-carboxyphenyl (or vice versa); and Rk=Rl=methyl.
- Preferred examples these compounds are imipenem, meropenem, ertapenem and doripenem.
- b8) boronate derivatives of the above general formula X.
b9) boronate derivatives of the above general formula XI: - Examples of these compounds are 3-[(4-phenylsulfonyl-2-thienylsulfonyl)amino]phenyl]boronic acid (Chem. Biol. 2001, 8, 593) and [3-[[4-[(4-carboxyphenylsulfonyl)amino]phenylsulfonyl]amino]phenyl]boronic acid (Chem. Biol. 2001, 8, 594).
- b10) phosphonate derivatives of the above general formula XII
- Preferred examples of these are {[(4-nitrophenoxy)(hydroxyphosphoryl)]methyl}[benzylsulfonyl]amine, {[(4-nitrophenoxy)(hydroxyphosphoryl)]methyl}(phenylsulfonyl)amineand {[(4-nitrophenoxy)(hydroxyphosphoryl)]methyl}(2-thienylsulfonyl)amine, (benzo[b]thiophen-2-ylsulfonyl){[(4-nitrophenoxy)(hydroxyphosphoryl)]methyl}amine and 2-[(4-nitrophenoxy)(hydroxyphosphoryl)]-1-(phenylsulfonyl)hydrazine (all described in US-A-2004/082546 and US-A-2004/029836); and
- b11) diazabicyclooctane derivatives of the above general formula XIII:
- A preferred example of these is (1R,2S,5R)2-(aminocarbonyl)-7-oxo-1,6-diazabicyclo[3.2.1]octane-6-sulfonic acid (as described in WO-A-2002/01219, WO-A-2002/010172, FR-A-2835186 and FR-A-2848210).
- The pharmaceutical compositions of the present invention may comprise, besides the compound of formula I, two or more compounds selected from the above formulae II to XIII, being different from each other. Pharmaceutical compositions comprising triple combinations of a compound of formula I and two different compounds selected from the groups b1) to b11) are a preferred embodiment of the invention.
- Preferred combinations for the pharmaceutical compositions of the invention are compounds of formula I, where
- R1 is SO3H, or OCRaRa′COOH, wherein Ra and Ra′ are as defined for formula I;
R2, R3 and R5 are as defined for formula I;
R4 is C(Rx)(Ry)Z, with either: - Rx=Ry=H and Z is a group of one of the formulae
- wherein Rd, Re and Rf are as defined for formula I; or
- Rx=Ry=methyl and Z═COOH;
- or R4 is 4-hydroxypyridino[3,2-b]pyridin-3-yl)methoxy; and R6 is 2-amino-1,3-thiazol-4-yl, 2-amino-5-chloro-1,3-thiazol-4-yl, 5-amino-1,2,4-thiadiazol-3-yl, 5-aminopyrazol-3-yl or 4-aminopyrimidin-2-yl;
- with either one of
- (1S,5R)-2-[2-β-carbamoylpyridyl)acetyl]-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid, (1S,5R)-2-[2-(4-aminopyridyl)acetyl]-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid, (1S,5R)-2-[2-β-carbamoyl-6-methylpyridyl)acetyl]-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid, (1S,5R)-2-[2-(5-methyl(1,3,4-thiadiazol-2-ylthio))acetyl]-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid, sodium salt, (1S,5R)-2-[2-(1-methyl(1,2,3,4-tetraazol-5-ylthio))acetyl]-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid, sodium salt, (1S,5R)-2-{N-[4-({[2-(2-aminoethoxy)ethyl]amino}carbonylamino)phenyl]carbamoyl}-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid, (1S,5R)-2-[N-(4-{[(2-aminoethyl)amino]carbonylamino}phenyl)carbamoyl]-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid or (2S,3S,5R)-3-((1Z)-2-cyanovinyl)-3-methyl-4,4,7-trioxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid.
- More preferred are composition wherein the above double combinations are further combined with one of sulbactam, clavulanic acid or a customary pharmaceutically acceptable salt thereof, i.e. a clavulanate. These compositions thus comprise triple combinations.
- Particularly preferred are compositions with the following double and triple combinations (the numbers are as in the foregoing tables 1a, 1b, 2a and 2b):
-
Aztreonam Compound 102 Sulbactam Aztreonam Compound 102 Clavulanate Compound 1 Compound 501 Compound 1 Compound 102 Sulbactam Compound 1 Compound 102 Clavulanate Compound 1 Compound 103 Clavulanate Compound 1 Compound 111 Clavulanate Compound 1 Compound 202 Clavulanate Compound 1 Compound 206 Clavulanate Compound 1 Compound 323 Sulbactam Compound 1 Compound 323 Clavulanate Compound 1 Compound 324 Clavulanate Compound 12 Compound 102 Sulbactam Compound 12 Compound 102 Clavulanate Compound 12 Compound 103 Sulbactam Compound 12 Compound 323 Sulbactam Compound 12 Compound 324 Sulbactam Compound 21 Compound 102 Sulbactam Compound 21 Compound 102 Clavulanate Compound 21 Compound 323 Sulbactam Compound 21 Compound 323 Clavulanate Compound 21 Compound 324 Sulbactam Compound 22 Compound 102 Clavulanate Compound 22 Compound 324 Clavulanate Compound 22 Compound 324 Sulbactam Compound 26 Compound 102 Clavulanate Compound 26 Compound 102 Sulbactam Compound 26 Compound 324 Clavulanate Compound 26 Compound 324 Sulbactam Compound 29 Compound 102 Sulbactam Compound 29 Compound 102 Clavulanate Compound 29 Compound 323 Sulbactam Compound 29 Compound 324 Sulbactam - Pharmaceutical compositions with triple combinations of compound no. 1 according to formula I with any one of the compounds of formula II and with clavulanate form a particularly preferred embodiment of the invention, such as do kits-of-parts (articles) with this combination.
- The compounds of formula I are compounds known from the above cited literature references, or can be made in an analogous manner, or can be made as described in the following. If in the following schemes a number is assigned to an intermediate then this intermediate is per se presumed novel and may form part of the invention.
- The compounds of formula I can generally be prepared by reacting aryl or heteroaryl carboxylic acids of general formula A with 3-amino-azetidin-2-one compounds of general formula B (scheme 1). In this scheme, R4 may also have the meaning of a protecting group, which may then be removed, in order to subsequently connect the actually desired R4.
- The coupling reaction of compounds of general formula A with compounds of general formula B can be performed with the corresponding acyl chlorides of the aryl or heteroaryl carboxylic acids of general formula A or with the carboxylic acids A themselves and DCC (Chem. Pharm. Bull 1983, 2200) or with an activated ester of the aryl or heteroaryl carboxylic acids of general formula A, such as the N-hydroxysuccinimidyl ester (see Org. Process Res. & Dev. 2002, 863) or the benzothiazolyl thioester (see J. Antibiotics 2000, 1071). Alternatively, compounds of formula I can also be prepared as outlined in scheme 2 (with R1=SO3H see also J. Antibiotics 1985, 346; J. Org. Chem. 1981, 1557).
- The preparation of compounds of general formula B can be carried out in different ways according to the substituents present in 1, 3 and 4-positions (Scheme 3, 4, 5). (J. Org. Chem. 1980, 410; J. Org. Chem. 1985, 3462; J. Antibiotics 1985, 346; J. Antibiotics 1985, 813; J. Antibiotics 1986, 76; Tetrahedron Lett. 1986, 2789, J. Med. Chem. 1985, 1447; Chem. Pharm. Bull. 1984, 2646, J. Am. Chem. Soc. 1990, 760).
- A-1) In the above schemes 3 and 5, generally an enantiomerically pure N-protected β-hydroxy amino acid 1000 is required as the starting material. This precursor 1000 can be prepared in different ways, as outlined in the following sections A-1-I) to A-1-IV):
A-1-I) Where R2═R3═R and preferably is alkyl, alkenyl, alkynyl, optionally substituted benzyl or optionally substituted phenyl, a synthesis according to the following scheme A-1-I or scheme A-1-Ia may be used: - In the above scheme A-1-I, the configuration of the α-carbon atoms in the starting diethyl tartrate needs not be defined. The indicated chiral Jacobsen's catalyst for the asymmetric Strecker synthesis of the amino acid (2S)-1006 has been known from Angew. Chem. Int. Ed. 2000 1279. As the catalyst is available in both enantiomers, the corresponding β-hydroxy amino acid with the D-configuration at the α carbon atom ((2R)-1006) may also be produced. The latter is suited for producing N-protected β hydroxy amino acids 1000a where the hydrogen atom at the α carbon atom is replaced by R5 (see section A-1-IV below).
- In the above scheme the preparation of the β,β-dialkylsubstituted β-hydroxy α-amino acid 1000 starts from the commercially available enantiomerically pure N—BOC serine methyl ester 1007 (J. Org. Chem. 2003, 177, Tetrahedron, 1996, 11673). The synthesis follows the chemistry based on Rapoport's methodology, which is known to keep the conformational integrity of the starting amino acid (J. Org. Chem. 1989, 1866, J. Org. Chem. 1990, 3511).
- A-1-II) Similarly, where R2 and R3 are different from each other and are preferably independently selected from alkyl, alkenyl, alkynyl, optionally substituted benzyl and optionally substituted phenyl, the following scheme A-1-II, modified from scheme A-1-I, may be used to produce 1000:
- In this scheme R2 is particularly preferably methyl. The introduction of the second residue R3 into 1011 by Grignard reaction gives, according to Cram, predominantly the shown diastereomer of 1012, due to the chelating effect of the oxygen atom of the α-acetonide substituent. In the Strecker synthesis step without chiral auxiliary, both diastereomeric amino acids (2S)-1014 and (2R)-1014 may form as a mixture due to the newly formed chiral α-carbon atoms. The diastereomers of the so produced β-hydroxy amino acids 1014 may be separated using ion exchange chromatography with aqueous buffers as the mobile phase, as is customary in the art. The correct diastereomer (2S)-1014 may be identified as the one that produces faster a dipeptide, when each of the diastereomers (2S)-1014 and (2R)-1014 is reacted under otherwise identical conditions with N-benzoyl L-alanine methyl ester and carboxypeptidase Y as the dipeptide-forming enzyme (for an appropriate experimental procedure see example 1 of EP-A-0 017 485). The other, undesired diasteromer (2R)-1014 may be used for the production of N-protected β-hydroxy amino acids 1000a where the hydrogen atom at the α carbon atom is replaced by R5 other than hydrogen (see section A-1-IV below).
- Scheme A-1-IIa outlines an alternative procedure starting from protected serine 1007 and leading to disubstituted hydroxyl derivatives 1016 by controlling the stereochemistry of the addition of the second substituent; either with R3Li, giving the Felkin adduct as major product, or with R3MgX, to obtain the anti-Felkin adduct as major product (Tetrahedron 1995, 8121).
A-1-III) where R2 is preferably alkyl, alkenyl, alkynyl, optionally substituted benzyl or optionally substituted phenyl, and R3 is H, or R2 is H and R3 is preferably alkyl, alkenyl, alkynyl, optionally substituted benzyl or optionally substituted phenyl, a synthesis according to following scheme A-1-III) may be adopted to form 1000: - This methodology was developed by Seebach (Helv. Chim. Acta 1987. 237). In scheme A-1-III, the conversions on the left pathway yield the N-protected β-hydroxy amino acid 1000 where R2=hydrogen, in defined configuration. The conversions on the right pathway yield the N-protected β-hydroxy amino acid 1000 where R3=hydrogen, also in defined configuration.
- A-1-IV) When the azetidinone B contains R5 other than hydrogen, then an N-protected α-R5-substituted β-hydroxy amino acid 1000a is required, analogous to a corresponding above amino acid 1000, except for the additional R5 substituent. This amino acid 1000a may be used in above schemes 3 and 5 instead of 1000.
A-1-IVa) When R5 is preferably alkyl, and one of R2 and R3 is preferably hydrogen, and the other one preferably is alkyl, alkenyl, alkynyl, optionally substituted phenyl or optionally substituted benzyl (or both of R2 and R3 are preferably independently selected from alkyl, alkenyl, alkynyl, optionally substituted phenyl and optionally substituted benzyl) the technology described in part A-1-III (Helv. Chim. Acta 1987. 237) can be employed, but using 2-tert-butyl-N-benzoyl-1,3-oxazolidinone as chiral inductor (scheme A-1-IVa below). The introduction of the electrophile R5-X leads to the compound 1029. A condensation with aldehyde R2CHO as second electrophile gives the R2,R5-disubstituted oxazolidinone 1030 with control of the stereochemistry. If desired, the configuration at the newly formed secondary alcohol in 1030 may be inverted, such as under Mitsunobu conditions, to form the epimeric R2,R5-disubstituted oxazolidinone 1031. If onto 1029 a condensation with ketone R2C(O)R3 as the second electrophile is carried out, then R2,R3,R5-trisubstituted oxazolidinones 1032 may be produced. If necessary the formed epimers of 1032 may be separated, such as by chromatography. All three compounds 1030, 1031 and 1032 may subsequently be converted by hydrolysis of the benzoyl group and the oxazolidinone ring and reprotection of the amino group desired compounds 1000a. - A-1-IVb) When the azetidinone B contains alkoxy as R5 and one of R3 or R2 preferably as hydrogen, and the other, one preferably as alkyl, alkenyl, alkynyl, optionally substituted phenyl or optionally substituted benzyl, then another example of preparation of amino acids 1000a is outlined in following scheme A-1-IVb (in the scheme R3 is assumed as hydrogen). It is based on the chemical description written on Biochemistry 2004, 3385 and Fortschr. Chem. Org. Naturst., 1979, 327. The approach relies on the established oxidation of an N-acyl α-amino ester to a highly reactive intermediate N-acyl α-imino ester, which then adds R5-containing nucleophiles (alcohols R′″OH wherein R′″O═R5). The various protecting groups R′ and R″ would be removed subsequently (not shown in the scheme).
A-1-IVc) Similarly, for the case where azetidinone B contains alkoxy as R5 and both R3 and R2 are preferably independently selected from alkyl, alkenyl, alkynyl, optionally substituted phenyl and optionally substituted benzyl, an approach according to following scheme A-1-IVc may be used. By this scheme it is possible to prepare β-disubstituted N-protected amino acids 1000a following the synthetic pathway described in scheme A-1-Ia and scheme A-1-IIa. - In above scheme A-1-IVc, the conversions 1000 to 1035 are analogous to the conversions of 1000 to 1034 in above scheme A-1-IVb.
- A-2) A range of compounds B, where R2=CH2X1 and R3=H, can be directly made in analogy to the procedure described in J. Antibiotics, 1983 1201 followed by standard functional group conversions (scheme A-2):
- This scheme shows how to form compounds B where X1 is preferably selected from halogen, azido, amino, hydroxyl, cyano, carboxyl, alkoxycarbonyl, alkanoylamino, phenylaminocarbonyl, alkylaminocarbonyl, aminocarbonyl, carbamoyloxy, alkylaminosulfonyl and optionally substituted phenylaminosulfonyl. The common starting material shown in the upper left of scheme A-2 is known from J. Org. Chem. 1982. 2765. In this scheme, in all the obtained compounds B the final removal of the Cbz protecting group by hydrogenolysis is not shown.
- The preparation of compounds of general formula A required in schemes 1 and 2 can be carried out in a customary way by reacting an appropriately R6-substituted keto acid A3 with an appropriately R4-etherified hydroxylamine (schemes 6 and 7 below)
- The R6-substituted keto acid A3 required in both schemes 6 and 7 can be prepared via 2 different synthetic pathways, as described in the following.
- A3 may firstly be obtained by oxidation of an ester A1 leading to the glyoxalate derivative A2, followed by hydrolysis of the ester group (scheme 6). The oxidising agent used in the conversion from A1 to A2 is not critical. Examples of suited oxidising agents are SeO2 (J. Antibiotics 1983, p. 1020ff.), DMSO, x2 (Bull. Chem. Soc. Jpn. 1994, 1701), x2 and pyridine-N-oxide (Bioorg. Med. Chem. 2003, 591) where x2 is a halogen; with SeO2 being preferred.
- The R6-substituted keto acid A3 can also be prepared via the condensation of methyl methylthiomethyl sulfoxide according to above scheme 7 (J. Antibiotics, 1984, 546, J. Antibiotics, 1984, 557) in a 4 step synthesis from the esters A4 R6COOCH3 or R6COOEt. The methyl methylthiomethylsulfoxide is first condensed with A4 derivatives to give the methyl thioglyoxylate compound A6 after acidic treatment.
- Examples of preparation of intermediates A0, A1 or A4 (scheme 6 and 7) are as outlined in the following subsections B-1-Ia) to B-2-Id). Some of these intermediates are also commercially available.
- B-1-I) R6 can be a 5 membered heteroaromatic ring containing 1 to 4 heteroatoms such as N, O, S and which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, carbonylamino and halogen such as F, Cl, Br or I, preferably Cl.
- B-1-Ia) Thiadiazole derivatives
- The preparation of derivatives A0, A1 or A4, where R6 is a thiadiazole, especially 1,2,4-thiadiazole, may be performed as described in Biorg. Med. Chem. 2006, 1644, included herein by reference. Examples of compounds A1, may be prepared starting from 3-amino-5-methoxyisoxazole or methyl amidine in presence of thioesters, potassium thiocyanate or isothiocyanate as outlined in scheme B-1-Ia (Bull Chem Soc Jpn. 1994, 1701, J. Antibiotics 1983, 1020). In this scheme, R is preferably selected from hydrogen, alkyl, alkoxy, amino, alkylamino and carbonylamino.
- B-1-Ib) Scheme B-1-Ib outlines examples of starting materials. A0, A1 and A4 (Helv. Chim. Acta 1982, 2606; Russ. J. Org. Chem. 2003; 1133, Tetrahedron Let. 1979, 2827) obtained from substituted thiohydrazines. Using BrCN and these as starting material, 1049 may by prepared and then can lead to 2-amino-(1,3,4-thiadiazol-5-yl)acetic acid 1050. In scheme B-1-Ib, R is preferably selected from hydrogen, alkyl, alkoxy, amino, alkylamino and carbonylamino.
- In the above schemes B-1-Ia and B-1-Ib, the reaction with base/CO2, optionally by silyl protection of the amino group, may be carried out according to J. Antibiotics, 1984, 532 already cited above.
- B-1-Ic) 1,2,4-oxadiazole derivatives
- As outlined in the upper part of scheme B-1-Ic indicated below, amide oxime derivatives 1051, wherein R is preferably selected from hydrogen, alkyl and alkoxy may be reacted with compounds such as carboxylic acid, acyl chloride or cyano derivatives to form 1,2,4-oxadiazole rings 1052,which are new examples of heterocycles derivatives A1. The lower part of scheme B-1-Ic, wherein R′ is preferably selected from hydrogen, alkyl, alkoxy, carbonylamino and halogen (in particular Cl), shows the synthesis of carboxylates 1054, 1056 of type A1 which are isomeric to 1052 (Tetrahedron Lett. 1998, 3931, J. Org. Chem 1995, 3112, J. Med. Chem. 1990, 1128, J. Pep. Research 2003, 233, Z. Chem. 1975, 57). For instance, compound 1056 may be obtained from the condensation of 1055 with BrCN.
- B-1-Id) Triazole derivatives
- Other examples of acids A0 outlined in scheme B-1-Id shown below are triazolyl acetic acid derivatives, such as 1,2,4-triazolyl acetic acids 1057, which may optionally be substituted by one substituent R preferably selected from amino, alkyl, alkoxy and carbonylamino. The exemplary synthesis of 2-(5-amino-1,2,4-triazol-3-yl)acetic acid (R═NH2) by this scheme is known from Russ. J. Org. Chem. 1995, 240.
- B-1-Ie) Thiazole and oxazole derivatives
- A versatile way for forming intermediates A0, A1 or A4, wherein the residue R6 is an optionally substituted 1,3-thiazol-4-yl or 1,3-oxazol-4-yl, is according to the known reactions of a thioamide or amide with an α-haloketone derivatives, as outlined in scheme B-1-Ie):
- In this scheme, R may preferably be selected from hydrogen, alkyl, alkoxy, amino, and alkylamino; and R′ is preferably selected from hydrogen and alkyl. From substituted thioamides, and substituted ethyl halogeno pyruvate 1058 or compounds 1059 substituted 1,3-thiazol-4-yls 1060, 1061 may be obtained according to examples described in the literature such as Tetrahedron Lett. 2005, 66; J. Chem. Soc. 1966, 1357; J. Chem. Soc. 1960, 925; J. Med. Chem. 1971, 1075; J. Het. Chem. 1980, 1255; J. Med. Pharm. Chem. 1959, 577.
- From similar keto ester derivatives 1059 in the presence of amide or thioamide derivatives, substituted 1,3-oxazol-4-yl acetic acid esters may be prepared as reported for instance in Bioorg. Med. Chem, 2003, 4325; Heterocycles, 2001, 689; Chem. Pharm. Bull. 1986, 2840; Tetrahedron Lett. 1992, 1937. The preparation of compounds 1062 from urea with ethyl bromo pyruvate is an example of preparation of 1,3-oxazole derivatives. If R′ is hydrogen and X is sulphur, then the thiazole moiety in 1060 or 1061 may subsequently be chlorinated using the procedure as described in “Preparation 1” of EP-A-0 055 465.
- B-1-If) Pyrazole derivatives.
- Another example of heterocyclic intermediates A0, A1 or A4 may be synthesised from substituted ethyl pyruvates in presence of hydrazine or substituted hydrazines according to the scheme B1-If (J. Chem. Soc. 1945, 114; Helv. Chim. Acta 1955, 670, J. Am. Chem. Soc. 1959, 2456). In this scheme, R is preferably selected from hydrogen, alkyl and carbonylamino, and R′ is preferably selected from hydrogen, alkyl, alkoxy, carbonylamino, hydroxyl, amino, alkylamino and halogen (in particular Cl).
- The reaction shown in the lower part of the scheme is analogous to a synthesis described in J. Org. Chem. 2004, 5168.
- B-1-Ig) Isoxazole derivatives
- Many isoxazoles with a carboxyl substituent in the 3-position and with one or two substituents selected from amino, alkyl (in particular methyl and ethyl) and hydroxyl are commercially available. Similar commercially available isoxazoles with a methyl substituent in the 3-position and optionally one or two substituents R′ and R″ preferably independently selected from alkyl, alkoxy and halogen, may again be converted to corresponding carboxylate-containing isoxazoles by converting that 3-methyl substituent to carboxylate using base and carbon dioxide (scheme B-1-Ig). For example, in U.S. Pat. No. 4,394,504 3-amino-5-isoxazolyl-2-acetic acid 1065 was prepared from 3-amino-5-methylisoxazole in this way.
- B-2) R6 can also be a phenyl ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, carbonylamino and halogen or a 6-membered heteroaromatic ring containing 1 to 5 heteroatoms such as N and which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, carbonylamino and halogen (such as F, Cl, Br, I, preferably Cl).
B-2-Ia) A very general way of obtaining keto acids A3 for above schemes 6 and 7 is by direct Friedel-Crafts acylation of an appropriately substituted corresponding phenyl or heterocycle R6-H, using excess oxalyl chloride. This way is feasible for all keto acids A3 where R6 is phenyl or a heterocycle which may be substituted by one to five substituents selected from alkyl, alkoxy, dialkylamino and halogen (in particular chloro), with the proviso that the phenyl or heterocycle has at least one unsubstituted carbon atom (the carbon atom that will carry the gyloxaloyl substituent). The appropriately substituted corresponding phenyl or heterocycle R6-H (where H is bonded to the said unsubstituted carbon atom) is reacted with excess oxalyl chloride under Friedel-Crafts conditions, followed by removal of excess oxalyl chloride and hydrolysis of the remaining free acyl chloride group of the introduced glyoxaloyl moiety. Friedel-Crafts acylation is also feasible for such phenyls or heterocycles where some of the one to five substituents are hydroxyl, amino, alkylamino. These substituents, however, are preferably protected as the before the acylation step and the subsequently deprotected.
B-2-Ib) Examples of intermediates A4 are commercially available pyridinecarboxylic acids, such as picoline (2-pyridinecarboxylic acids), nicotinic acid (3-pyridinecarboxylic acids) or isonicotinic acid (3-pyridinecarboxylic acids), which may optionally be substituted at the pyridyl by a substituent selected from alkoxy, halogen (in particular chloro) and amino.
B-2-Ic) Further examples of acids A0 are 2-pyridyl acetic acids, such as 2-(pyridyl-2)acetic acids 2-(pyridyl-3)acetic acids or 2-(pyridyl-4)acetic acids which may optionally be substituted at the pyridyl by a substituent selected from alkoxy, halogen (in particular chloro) and amino. - These can be obtained by deprotonating an appropriately substituted methylpyridine with a strong base such as N-BuLi or LDA and reacting the anion with carbon dioxide. In this reaction, the methyl substituent of the methyl pyridine is at the position where the acetic acid will be. The optional amino substituent at the pyridine may have been appropriately protected beforehand, such as with TMS-Cl. An exemplary reaction of this type can be found in DE-OS-2848912 and J. Antibiotics 1984, 532.
- B-2-Id) R6 can also be a pyrimidine derivative.
Scheme B-2-Id (below) shows that amidine derivatives (J. Org. Chem. 1962, 3608) can lead to either 2-substituted pyrimidine A1 or A4 (DE-OS-2848912, J. Antibiotics 1984, 546). Compounds 1068 (R═Cl) can easily be obtained by reaction with phosphoryl chloride from 1067. The chlorine can then easily be substituted by nucleophiles such as ammonia, alkylamines or alcohols and lead to compounds 1068 with R=amino, alkylamino or alkoxy (J. Antibiotics 1984, 546). - Another group of commercially available or synthetically accessible esters A4 are pyrimidyl-4 (ethyl 5,6-diaminopyrimidine-4-carboxylate, ethyl 2-amino-5-chloropyrimidine-4-carboxylate), pyrimidyl-5 (ethyl 2,4-diaminopyrimidine-5-carboxylate, ethyl 2-chloro-4-amino-5-carboxylate, ethyl 2,4-dichloropyrimidine-5-carboxylate) or pyrimidyl-6 (ethyl 2-chloro-4-amino-pyrimidine-6-carboxylate, ethyl 4,5-diaminopyrimidine 6-carboxylate) which are also considered as examples of 6-membered heterocyclic rings as R6 (Tetrahedron Lett. 1967, 1099; Chem Pharm. Bull. 1970, 1003. Justus Liebig Ann. Chem. 1954, 45).
- B-3) The hydroxylamines required in both above schemes 6 and 7, can be prepared in several methods, as outlined in scheme 8 below.
- These hydroxylamines may be prepared firstly according to J. Antibiotics, 2000, 1072 with N-hydroxyphthalimide via Mitsunobu reaction conditions in presence of the alcohols R4-OH or by alkylation of N-hydroxyphthalimide in presence of activated compounds R4-X (X can be halogens like Cl, Br, I, or activated sulfonate esters like mesylate, tosylate, triflate, etc.). When R4 has the structure C(Rx)(Ry)Z, with both Rx and Ry different from hydrogen, or is a tertiary alkyl, then N-hydroxyphthalimide may simply be treated with a stoichiometric amount of BF3.Et2O with the corresponding alcohol R4-OH (Tetrahedron Lett., 2005, 6667). Formation of the final hydroxylamines may be performed in presence of either hydrazine or methyl hydrazine. The oxaziridine technology developed by Ellman can also been employed to give directly deprotected 0-substituted hydroxylamines (J. Org. Chem. 1999, 6528). (scheme 8).
- Alcohols R4-OH or compounds R4-X are either commercially available or may be prepared as described in following sections B3-Ia) to B-3-Ie).
- B-3-Ia) A first method, where R4 is C(Rx)(Ry)Z, with Z═CH2N(OH)COR′, is outlined, as example, in the following scheme B-3-Ia, using α-halogenoalcohols 1069 or 1071 and N—Boc-O-(p-methoxybenzyl)hydroxylamine. The α-halogenoalcohols 1071 can be prepared from derivatized epoxides 1070 which can be opened in acidic conditions (Eur. J. Org. Chem. 2004, 2557). The α-halogenoalcohols 1069 can be obtained by chiral reduction of corresponding α-halogenoketones (Tetrahedron: Asymmetry 2005, 3955).
- In the above scheme B-3-Ia, the epoxides meso-1070 may be made from a ketone with two identical residues Rx=Ry=R with trimethylsulfonium iodide and base. For the epoxides (R)-1070 and (S)-1070 the synthesis may start from a ketone with two different residues Rx≠Ry, using an asymmetric epoxide forming reaction such as the catalytic epoxidation developed by Aggarwal (Accounts of Chemical Research, 2004, 37, pp. 611ff.). The conversion of 1069 and 1071 to 1072 is analogous to the procedure of Bioorganic & Medicinal Chemistry Letters 1996, 6(17), 2077ff. In the conversion of 1072 to 1073, again the oxaziridine technology developed by Ellman can be employed to give the hydroxylamine (J. Org. Chem. 1999, 6528).
- B-3-Ib) A second method, particular suited for hydroxylamines where R4 is C(Rx)(Ry)COOH, is outlined in the following scheme B-3-Ib. These hydroxylamines may be obtained from the corresponding alcohols R4-OH via Mitsunobu reaction conditions in presence of N-hydroxyphthalimide. The starting material R4-OH in turn may be obtained, as shown in the upper parts of scheme B-3-Ib, from an appropriately Rx,Ry-substituted ketone. To this ketone is added trimethylsilyl cyanide, either with or without a chiral catalyst, to obtain a silyl protected cyanohydrin 1074. The chiral thiourea catalyst indicated in scheme B-3-Ib, if used, and its conditions for use have been described in J. Am. Chem. Soc. 2005, 8964. The protected cyanohydrin is then reduced with LiAlH4 to the corresponding aldehyde 1075 and then esterified to 1076. As an alternative to the Mitsunobu reaction using R4-OH, the hydroxyl group of N-hydroxyphthalimide can also be alkylated in presence of activated compounds R4-X (X can be halogens like Cl, Br, I, or activated sulfonate esters like mesylate, tosylate, triflate, etc; these are easily obtainable from the corresponding R4-OH). Formation of the desired hydroxylamine may be performed in presence of either hydrazine or methyl hydrazine, as shown in the lower part of scheme B-3-Ib, following the procedure described in J. Antibiotics, 2000, 1071.
- B-3-Ic) A further variant for the preparation of hydroxylamines where R4 is C(Rx)(Ry)COOH, may start with the epoxides 1070 shown in above scheme B-3-Ia. These epoxides may be opened, as is customary, with aqueous base to form a vicinal diol; in which the primary hydroxy group is then converted to the aldehyde and then to the ester as outlined in the above scheme B-3-Ib in the conversion of 1075 to 1076.
B-3-Id) For hydroxylamines where in R4 Z is - wherein Re and Rd are ORg (Rg being preferably selected from hydrogen, alkyl or optionally substituted benzyl for each Re and Rd), Rd is preferably hydrogen, alkyl, amino, monoalkylamino, optionally substituted benzyl, alkoxycarbonyl or ORg (wherein Rg is as for Re and Rd); and wherein Rx=Ry=H; the following synthetic scheme B-3-Id may be adopted:
- This scheme adheres to the synthetic procedure described in EP-A-0 251 299. The kojic acid used as the starting material is commercially available. In the conversion from the silyl-protected kojic acid to 1077 the reactands H2N-Rd are amines, when Rd is hydrogen, alkyl or optionally substituted benzyl, they are hydrazines, when Rd is amino or monoalkylamino; they are carbamates, when Rd is alkoxycarbonyl; and when Rd is ORg, these reactands are hydroxylamines. In the conversion of 1078 to 1079, the reactands Rg-X are hydrogen halides, alkyl halides or benzyl halides, wherein X is preferably Br or I. These reactands Rg-X are known or easily made from the corresponding alcohols Rg-OH. In the above scheme, instead of trimethylsilyl other protecting groups could also be used, such as benzyl, diphenyl or trityl as reported in J. Antibiotics 1990, 1450.
- B-3-Ie) For hydroxylamines where in R4 Z is
- wherein Re and Rd are ORg (Rg being preferably selected from hydrogen, alkyl or optionally substituted benzyl for each Re and Rd), Rf is preferably alkoxycarbonyl or alkylaminocarbonyl; and wherein Rx=Ry=H; the following synthetic scheme B-3-Ie may be adopted:
- The synthesis starts from kojic acid and is based on the known chemistry described in Biorg Med Chem Lett 2004, 3257; J. Med Chem 2002, 633; Bioorg Med. Chem. 2001 563 and J. Antibiotics 1990 1454. In the above scheme, the diphenylmethane protecting group in 1082 may subsequently be removed and, if desired, the free hydroxy group be reacted with an appropriate halide R—X, wherein R is alkyl or optionally substituted benzyl. These last steps are not shown in the above scheme.
- B-3-If) For hydroxylamines where in R4 Z is.
- wherein Re and Rd are ORg (Rg being preferably selected from hydrogen, alkyl or optionally substituted benzyl for each Re and Rd), Rf is preferably alkyl; and wherein Rx=Ry=H; a gain starting from from kojic acid and with adapted protecting group strategy, further examples of pyridone derivatives which can be prepared are according to following scheme B-3-If:
- The upper part of scheme B-3-If is based on the possibility to run a Wittig reaction (J. Med. Chem 2004, 6349) on the aldehyde obtained after Swern oxidation. The resulting product 1083 may be subjected to hydrogenolysis in presence of Pd/C similarly to the preparation of compound 10′j in J. Med. Chem 2004, 6349. The resulting compound 1084 may then be treated as already outlined in above scheme 8 to obtain desired hydroxylamines 1085. The lower part of scheme B-3-If shows the preparation of hydroxylamines with linear or branched alkyl as Rf. In this part of scheme, R′ and R″ are preferably selected from alkyl (in particular methyl and ethyl) and hydrogen; more preferably one of R and R″ is hydrogen, or both R′ and R″ are hydrogen. A thermal rearrangement of products 1086, obtainable by alkylation of the 4-hydroxyl group of kojic acid with appropriately R′,R″-substituted allyl bromides (J. Am. Chem. Soc. 1956, 2816) leads to 6-substituted pyridones 1087. These may again be converted in the usual way to hydroxylamines 1089. In the above formed hydroxylamines 1085 and 1089 the diphenylmethane group may subsequently be removed and, if desired, the free hydroxy group be reacted with an appropriate halide R—X, wherein R is alkyl or optionally substituted benzyl. These last steps are not shown in the above scheme.
- B-3-Ig) For hydroxylamines where in R4 Z is
- wherein Re is ORg (Rg being preferably selected from hydrogen, alkyl or optionally substituted benzyl), and Rd is preferably selected from hydrogen, alkyl, amino, monoalkylamino, optionally substituted benzyl or alkoxycarbonyl; and wherein Rx=Ry=H; a synthesis analogous to the scheme B-3-Ig shown below may be used. Details of the syntheses in the upper part of this scheme can be found in J Med. Chem. 2004, 6349.
- In the hydroxylamines 1090 obtained in above scheme B-3-Ig the diphenylmethane group may subsequently be removed and, if desired, the free hydroxy group be reacted with an appropriate halide R—X, wherein R is alkyl or optionally substituted benzyl. These last steps are not shown in the above scheme.
- B-3-II) For hydroxylamines where Z is
- the following scheme B-3-II may be used. In this scheme, the naphthyridine hydroxylamine may be obtained from commercially available 4-hydroxy-1,5-naphthyridine-3-carboxylic ethyl ester after diphenyl protection of the hydroxyl group and reduction of ester group. Mitsunobu reaction in presence of N-hydroxyphthalimide and deprotection with hydrazine leads to the desired compound 1093.
- B-3-III) Further suited hydroxylamines are those where Z is selected from:
- wherein Ri is as defined in claim 1. Those substituted 5-membered rings are known as bioisosteres (Curr. Med. Chem. 2004, 11, 945) of the carboxylic acid group. One particularly preferred hydroxylamine of this type, tetrazole methyl hydroxylamine 1094, may be obtained from commercially chloro methyl tetrazole with N-hydroxyphtalimide according to the method described in J. Antibiotics 2000, 1071 (scheme B-3-IIIa below).
- Isoxazole analogs (J. Heterocyclic Chem. 1997, 345, J. Med. Chem. 1996, 183) or isothiazoles (J. Med. Chem. 1998, 930) are also known as bioisosteres of the carboxylic acid group and may be done in similar way as outlined in the scheme B-3-IIIb below based on the following literature (J. Chem. Soc., Perkin 1 1993, 2153; Synthesis 1996, 1177, Acta Chem. Scand. 1990, 96.
- In this scheme, the removal of the benzyl protecting group in the resulting hydroxylamine-containing isoxazoles and isothiazoles 1095 is not shown.
- After formation of the ketoacid derivative A3, the condensation with O-substituted hydroxylamine (prepared or commercially available like O-methyl hydroxylamine) may be performed to lead to compounds of general formula A. The condensation of the hydroxylamines R4-ONH2 with the keto acid derivatives A3 to form the compounds A may then follow the procedure described in J. Antibiotics 2000, 1071 and WO-A-02/22613.
- B-4) As an alternative of preparing compounds A, the esters A1 may firstly be oxidised to form compounds A2 as shown in scheme 6, then reacted with hydroxylamine, followed by O-protection and ester hydrolysis, to lead to the intermediate C, which can be coupled to the azetidinone B. Substituents R4, can be introduced by alkylation. This alternate route is shown in the following scheme 9:
- The compounds of formula II are compounds known from the above cited literature references (EP-A-0 508 284 and U.S. Pat. No. 6,566,355) or can be made in an analogous manner or can be made as described in the following scheme 10.
- The intermediate compound D (J. Med. Chem. 1998, 3961 and EP-A-0 508 234) gives access to compounds of formula IIA, IIB or to IIC using different synthetic routes outlined in scheme 10.
- For the preparation of pyridinium carboxymethyl derivatives of formula IIA, two synthetic routes are possible (scheme 11):
-
- First pathway: Compound F, prepared from compound D in presence of bromo acetyl bromide according to the procedures described in J. Med. Chem. 1998, 3961 and EP-A-0 508 234, may be sulfonated (J. Org. Chem. 1982, 5160). Pyridine derivatives, condensed at room temperature in dimethylformamide, are either commercially available or synthesized according to known literature procedures.
- Second pathway: Compound D may be first hydrogenated in presence of BOC2O to afford the intermediate G (Tetrahedron Lett. 1988, 2983). Then sulfonation of compound G followed by removal of the BOC protecting group generates compound H (J. Med. Chem. 1998, 3961 and J. Org. Chem. 1982, 5160).
- At that stage the pyridinium carboxymethyl derivatives (prepared by analogy according to the procedures described in Synthesis 2000, 1733 or J. Chem. Soc, Perkin Trans. I 1977, 1692) may be introduced to generate compounds IIA.
- The compounds of formula IIB may be obtained from compound H and succinimidyl derivatives according to the following scheme 12:
- Compound H may be prepared as previously described in scheme 11. Then the succinimidyl derivatives may be synthesized and introduced according to the procedures described in J. Med. Chem. 1998, 3961.
- Compounds of formula IIC may be obtained either from compound E or compound H according to the following scheme 13:
- The compounds IIC may be synthesized via two different routes:
-
- either from compound E by first coupling with the thioacetic acid derivatives, followed by a sulfonation step (J. Med. Chem. 1998, 3961),
- or directly from compound H (see scheme 11) and thioacetic acid derivatives.
- The preparation of sodium salt of compound of formula I and II can be performed either with the procedures described in WO-A-02/22613, U.S. Pat. No. 6,566,355, J. Med. Chem. 1998, 3961 or in J. Antibiotics, 1985, 346.
- In the above descriptions, the reactants are reacted together with a suitable solvent at elevated or low temperatures for sufficient time to allow the reaction to proceed to completion. The reaction conditions will depend upon the nature and reactivity of the reactants. Wherever a base is used in a reaction, they are selected from e.g. triethylamine, tributylamine, trioctylamine, pyridine, 4-dimethylaminopyridine, diisopropylamine, 1,5-diazabicyclo[4,3,0]non-5-ene, 1,8-diazabicyclo[5,4,0]undec-7-ene, sodium carbonate, sodium dicarbonate, potassium carbonate, potassium bicarbonate or cesium carbonate.
- The deprotection of functional groups may be carried out either by hydrogenation or hydrolysis with appropriate acids such as hydrochloric acid, formic acid, trifluoroacetic acid, acetic acid or p-toluenesulfonic acid; in solvents such as methanol, ethanol, propanol, ethyl acetate, acetonitrile, methylene chloride or ethylene chloride. The hydrogenation is usually carried out in the presence of a metal catalyst, such as Pd, Pt or Rh under normal to high pressure.
- The solvents of choice for the reaction are selected based upon the reactants used and from solvents such as benzene, toluene, acetonitrile, tetrahydrofurane, ethanol, methanol, chloroform, ethyl acetate, methylene chloride, dimethyl formamide, dimethyl sulfoxide, hexamethyl phosphoric triamide or the like. Solvents mixtures may also be used.
- Reaction temperatures would generally range from between −70° C. to 150° C. The preferred molar ratio of the reactants is 1:1 to 1:5. The reaction time range from 0.5 to 72 hours, depending on the reactants.
- The compounds of formula I, Ia and Ib and their pharmaceutically compatible salts can be used in accordance with the invention in the control or prevention of illness in mammals, human and non-human, especially in combination with β-lactamase inhibitors.
- Thereby, the compound of formula I or pharmaceutically compatible salts thereof with bases can be administered before, simultaneously with or after the administration or intake of one or more β-lactamase inhibitors of formula II-XIII. The products in accordance with the invention can be administered in the form of pharmaceutical compositions containing the combination of a compound of formula I or a pharmaceutically compatible salt thereof with a base, and one or more β-lactamase inhibitors of formula II-XIII; alternatively, they may also be administered separately from the β-lactamase inhibitors, simultaneously or sequentially, in which case the combination according to the invention may be present as a kit-of-parts. Articles with such pharmaceutical combinations are also an object of the present invention.
- The compounds of formula I are active against a variety of bacterial organisms. They are active against aerobic Gram-negative bacteria that do not produce β-lactamases, including Enterobacteriaceae, for example Escherichia coli, Enterobacter cloacae, Enterobacter aerogenes, Citrobacter freundii, Klebsiella pneumoniae, Klebsiella oxytoca, Proteus vulgaris, Providencia rettgeri; Pseudomonas for example P. aeruginosa; Acinetobacter for example A. baumannii; Burkholderia, for example B. cepacea; Stenotrophomonas for example S. maltophilia. Combinations of compounds of formula I and formula II are active against strains of the above organisms that do produce β-lactamases and this activity can be increased by additionally combining compounds of formula III-XIII with the combination comprising compounds of formulae I and II.
- Formulations
- The pharmaceutical compositions and articles (kits-of-parts) according to the present invention are administered by any route, preferably in the form of a pharmaceutical composition, or kit-of-parts of individual compositions, adapted to such a route. Dosage and route of administration should be determined by susceptibility of the causative organisms, severity and site of infection, and the condition of the patient. The preferred types of pharmaceutical compositions are, for example, administered intravenously or by intramuscular injection.
- Formulations for parenteral administration can be in the form of aqueous isotonic sterile injection solutions or suspensions. These solutions or suspensions can be prepared from sterile powders, granules or lyophilizates. The compounds can be dissolved in sterile water or in various sterile buffers that may contain sodium chloride, polyethylene glycol, propylene glycol, ethanol, sucrose, glucose, arginine, lysine, or lactic acid. The dry compositions can contain from 0.1% to 99% by weight, preferably 10%-60% by weight, of each of active ingredients. If the compositions contain dosage units, each unit preferably contains from 50 mg to 4 g of each active substance.
- The ratio of β-lactam antibiotic (compounds of formula I or pharmaceutically compatible salts thereof with a base) and β-lactamase inhibitors (compounds of formula II and formula III-XIII, or pharmaceutically compatible salts thereof with a base) can also vary within wide limits and will be fitted to the individual requirements in each particular case. In general, a ratio of between 1 part of antibiotic of general formula I to 5 parts of any one β-lactamase inhibitor of general formula II or III-XIII and 20 parts of antibiotic of general formula I to 1 part of any one β-lactamase inhibitor of general formula II or III-XIII should be appropriate.
- The dosage of the compound of formula I and of the pharmaceutically compatible salts thereof with bases can vary within wide limits and will be fitted in each particular case to the individual requirements and to the β-lactamase producing pathogen to be controlled. In general, a dosage of about 0.1 to about 2 g of antibiotic administered one to four times over a 24 hours period should be appropriate.
- The present invention is further illustrated by the following non-limiting examples.
- 5-(Diphenylmethoxy)-2-(hydroxymethyl)pyran-4-one (J. Antibiotics 1990, 189) (5.0 g, 16.22 mmol) and methyl amine (80.6 g, 1.04 mol) were stirred at room temperature overnight in presence of methanol (1 mL). The precipitate observed was filtered off and the mother liquor was extracted 3 times with ethyl acetate. The organic phases were dried and the solvent evaporated. The total amount of collected product was 2.1 g.
- 1H-NMR (DMSO-d6) d: 3.49 (s, 3H), 4.29 (s, 2H), 6.22 (s, 1H), 6.74 (s, 1H), 7.20-7.60 (m, 11H).
- In THF (10.0 mL), containing triphenylphosphine (0.470 g, 1.79 mmol) and N-hydroxyphthalimide (0.293 g, 1.79 mmol) was added 5-(diphenylmethoxy)-2-(hydroxymethyl)-1-methylhydropyridin-4-one (0.240 g, 0.75 mmol). After cooling the solution at 0° C., diethyl-azodicarboxylate (0.312 g, 1.79 mmol) was added dropwise and stirred for 30 min at this temperature. The solution was then warmed up to room temperature and stirred overnight. A suspension was observed, filtered off and washed to give 210 mg of the desired compound.
- 1H-NMR (DMSO-d6) d: 3.78 (s, 3H), 5.08 (s, 2H), 6.29 (S, 1H), 6.74 (s, 1H), 7.20-7.50 (m, 10H), 7.69 (s, 1H), 7.80-7.90 (m, 4H),
- Hydrazine hydrate (0.023 mL, 0.47 mmol) was added to ethanol (10 mL) already containing 2-{[5-(diphenylmethoxy)-1-methyl-4-oxo-2-hydropyridyl]methoxy}benzo[c]azoline-1,3-dione (0.200 g, 043 mmol). The resulting solution was refluxed for 2 hours. After cooling at room temperature the precipitate was collected and the ethanol was evaporated. The resulting residue was triturated in ethyl acetate to give 130 mg of the expected compound.
- 1H-NMR (DMSO-d6) d: 3.51 (s, 3H), 4.43 (s, 2H), 6.21 (s, 1H), 6.29 (br s, 2H), 6.74 (s, 1H), 7.20-7.50 (m, 10H), 7.56 (s, 1H).
- In a mixture of ethanol (5 mL)/chloroform (3 mL), 2-[(aminooxy)methyl]-5-(diphenylmethoxy)-1-methylhydropyridin-4-one (0.076 g, 0.23 mmol) and 2-oxo-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}acetic acid (0.085 g, 0.21 mmol) were stirred at room temperature for 12 hours. The solvents were evaporated and ethyl acetate was added to the residue. The resulting suspension was filtered off to afford 77 mg of the desired compound.
- 1H-NMR (DMSO-d6) d: 3.49 (s, 3H), 5.00 (s, 2H), 6.24 (s, 1H), 6.72 (s, 2H), 6.83 (s, 1H), 7.15-7.50 (m, 25H), 7.57 (s, 1H), 8.85 (s, 1H).
- (2Z)-3-{[5-(diphenylmethoxy)-1-methyl-4-oxo(2-hydropyridyl)]methoxy}-2-{2-[(triphenyl methyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid (0.380 g, 0.52 mmol), dicyclohexylcarbodiimide (0.160 g, 0.78 mmol) and 1-hydroxy-7-azabenzotriazole (0.106 g, 0.78 mmol) were stirred at room temperature for 3 hours. Then (3S,4S)-3-amino-4-methyl-2-oxoazetidinesulfonic acid (0.103 g, 1.04 mmol) and a catalytic amount of triethylamine were added to the previous solution which was stirred for 16 hours at room temperature. The solvent was evaporated in vacuo and the residue was purified by column chromatography (silica gel, eluent; dichloromethane and methanol, 95/5, v/v). 100 mg of desired compound was obtained.
- 1H-NMR (DMSO-d6) d: 1.35 (d, 3H, J=6.0 Hz), 3.55-3.60 (m, 1H) 3.83 (s, 3H), 4.34 (dd, 1H, J=2.5, 7.7 Hz), 5.21 (s, 2H), 6.75 (m, 1H), 6.77 (s, 1H), 7.00 (s br, 1H), 7.15-7.60 (m, 26H), 8.39 (s br, 1H) 8.83 (s, 1H), 9.33 (d, 1H, J=7.7 Hz).
- (3S,4S)-3-((2Z)-3-{[5-(diphenylmethoxy)-1-methyl-4-oxo(2-hydropyridyl)]methoxy)-2-(2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoylamino)-4-methyl-2-oxoazetidinesulfonic acid (0.076 g, 0.08 mmol) was dissolved in dichloromethane (3 mL). Triethylsilane (0.021 mL, 0.25 mmol) was added at −10° C. and trifluoroacetic acid (0.327 mL, 4.25 mmol) was added dropwise and stirred for 1 h at the same temperature. The solution reacted at room temperature for 2 hours. Then dichloromethane was evaporated in vacuo and the residue was purified by preparative HPLC to give 35 mg of the desired compound.
- The titled compound was prepared following scheme 1. (2Z)-3-{[1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy}-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1990, 1450 and WO-A-02/22613 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinyl hydroxysulfonate was prepared according to the procedures described in J. Am. Chem. Soc, 1982, 6053 and J. Antibiotics, 1985, 1536.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The titled compound was prepared following scheme 8. (2z)-3-{[1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy}-2-{4-[(triphenylmethyl)amino]pyrimidin-2-yl}-3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1984, 546 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinesulfonic acid was prepared according to the procedures described in J. Org. Chem. 1980, 410.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The title compound was prepared following scheme 1. (2Z)-3-{[1,5-Bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy}-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1990, 1450 and WO-A-02/22613 and 2-((3S,4S)-3-amino-4-methyl-2-oxoazetidinyloxy)acetic acid was prepared according to the procedure described in J. Med. Chem. 1985, 1447 and J. Antibiotics, 1985, 813.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The titled compound was prepared following scheme 1. (2Z)-3-{[1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy}-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1990, 1450 and WO-A-02/22613 and (2S)-2-((3S,4S)-3-amino-4-methyl-2-oxoazetidinyloxy)propanoic acid was prepared according to the procedure described in J. Med. Chem. 1985, 1447 and J. Antibiotics, 1985, 813.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The title compound was prepared following scheme 1. (2Z)-3-{[1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy}-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1990, 43, 1450 and WO-A-02/22613 and (3S)-3-amino-4,4-dimethyl-2-oxoazetidinyl hydroxysulfonate was prepared according to the procedure described in J. Org. Chem. 2003, 177 and Tetrahedron Lett., 1986, 2789.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The titled compound was prepared following scheme 1. (2Z)-3-{[1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy}-2-{5-chloro-2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was prepared according to the procedures described in J. Antibiotics, 1990, 1450 and WO-A-02/22613 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinyl hydroxysulfonate was prepared according to the procedure described in J. Am. Chem. Soc, 1982, 6053 and J. Antibiotics, 1985, 1536.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The title compound was prepared following scheme 1.
- The alcohol derivative 5-(diphenylmethoxy)-2-(hydroxymethyl)-1-methoxyhydropyridin-4-one was obtained according to the following procedure;
- To a solution of DMF (20 mL) containing 5-(diphenylmethoxy)-1-hydroxy-2-(hydroxymethyl)hydropyridin-4-one (J. Antibiotics 1990, 1450) (2.0 g, 6.19 mmol) at 0° C. was first added potassium tert-butoxyde (0.971 g, 8.66 mmol) and then iodo methane (4.23 g, 8.66 mol). The resulting mixture was stirred for 30 min at 0° C. and then 2 h at room temperature. Then ethyl acetate (20 mL) and water (50 mL) was added. The observed precipitate was filtered off and the washed with additional ethyl acetate. The total of amount of collected product was 1.4 g.
- 1H-NMR (DMSO-d6) d: 3.87 (s, 3H), 4.38 (d, 2H, J=5.8 Hz), 5.55 (t, 1H, J=5.8 Hz) 6.13 (s, 1H), 6.69 (s, 1H), 7.20-7.50 (m, 10H), 7.88 (s, 1H).
- The compound of formula A (2Z)-3-{[5-(diphenylmethoxy)-1-methoxy-4-oxo(2-hydropyridyl)]methoxy}-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was prepared according to the procedures described in example 1 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinesulfonic acid was prepared according to the procedures described in J. Org. Chem. 1980, 410.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The titled compound was prepared following scheme 1.
- 2-(hydroxymethyl)-5-methoxypyran-4-one was prepared from kojic acid according to the procedure described in J. Org. Chem. 1950, 221
- Then the preparation of the compound of formula A (2Z)-3-{[1-(diphenylmethoxy)-5-methoxy-4-oxo(2-hydropyridyl)]methoxy}-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was prepared according to the procedures described in example 1 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinesulfonic acid was prepared according to the procedures described in J. Org. Chem. 1980, 410.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The titled compound was prepared following scheme 1.
- The preparation of the compound of formula A (2z)-3-(2-{N-[(4-methoxyphenyl)methoxy]acetylamino}ethoxy)-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was prepared according to the procedures described in Bioorg. Med. Chem. Lett. 1996, 2077 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinesulfonic acid was prepared according to the procedures described in J. Org. Chem. 1980, 410.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The titled compound was prepared following scheme 1.
- 1-[(1E)-2-(4-nitrophenyl)-1-azavinyl]-5-(diphenylmethoxy)-2-(hydroxymethyl)hydropyridin-4-one was prepared from kojic acid according to the procedure described in Helv. Chim. Acta 1960, 461
- Compound of formula A 3-({1-[(1E)-2-(4-nitrophenyl)-1-azavinyl]-5-(diphenylmethoxy)-4-oxo(2-hydropyridyl)}methoxy)(2Z)-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was prepared according to the procedures described in example 1 and (3S,4S)-3-amino-4-methyl-2-oxoazetidinesulfonic acid was prepared according to the procedures described in J. Org. Chem. 1980, 410.
- Final assembly and deprotection steps were done similarly according to the method described for the example 1.
- The titled compound was prepared following scheme 1.
- The preparation of the compound of formula A (2Z)-3-{[1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy}-2-{5-chloro-2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-3-azaprop-2-enoic acid was achieved according to the procedures described in J. Antibiotics, 1990, 1450 and WO-A-02/22613 using 2-{5-Chloro-2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}-2-oxoacetic acid (obtained from 2-oxo-2-{2-[(triphenylmethyl)amino](1,3-thiazol-4-yl)}acetic acid (DE2710902A1) and chlorination step achieved according to the procedures described in EP-A-0 055 465) and 2-[(aminooxy)methyl]-5-(diphenylmethoxy)-1-methylhydroxyridine-4-one (described in example 1).
- The preparation of the compound of formula B 2-(trimethylsilyl)-ethyl{(3S,4S)-3-amino-4-[(aminocarbonyloxy)methyl]-2-oxoazetidinyloxy}acetate was prepared as followed:
- To solution of tetrahydrofuran (THF, 6 L) and phosphoric acid buffer (0.025 M, KH2PO4/Na2HPO4; ratio 1/1.2 L) containing ethyl 3-[(tert-butoxy)carbonylamino]-2-hydroxy-3-[N-(phenylmethoxy)carbamoyl]propanoate (compound prepared from diethyl tartrate according to the procedures described in Org. Synth., Coll. Vol. 1998, 220, J. Org. Chem. 1983, 3556 and U.S. Pat. No. 4,794,108) (120 g, 31.38 mmol), sodium borohydride (59.35 g, 156.9 mmol) was added portion wise at 0° C. over 1 h. The resulting mixture was stirred at 0° C. for an additional 1 h and at room temperature for 2 h. The mixture was cooled at 0° C. before addition of 1M aqueous solution containing H3PO4 until the pH reach 8. NaCl (100 g) was added to the mixture and the organic layer was separated. Extraction with ethyl acetate (3×1.5 L) was performed and the combined organic phases were washed with brine (1 L), dried over MgSO4 and evaporated under vacuo. The residue as purified by column chromatography using hexane/acetone as eluent to get 50 g of white solid.
- −ESI-MS spectrum: m/z: 339 [M−1]+.
- [(Tert-butoxy)carbonylamino]-3,4-dihydroxy-N-(phenylmethoxy)butanamide (47 g, 138 mmol), imidazole (37.5 g, 552 mmol) and tert-butyldimethylsilyl chloride (57.7 g, 386.4 mmol) were stirred at 0° C. for 1 h and the room temperature for an additional 1 h in a mixture of dichloromethane (1.7 L) and dimethylformamide (17 mL). Water (250 mL) was added and after decantation, water (2×250 mL) and brine (250 mL) was used for washing the organic phases, which was dried over Na2SO4. After evaporation of the solvent, the residue was purified by column chromatography using a mixture of ethyl acetate/hexane (1/4) as eluent to get 28 g of the desired product.
- 1H-NMR (CDCl3) δ: 0.06 (s, 6H), 0.88 (s, 9H), 1.42 (s, 9H), 3.65-3.70 (m, 1H), 3.75-3.85 (m, 2H), 4.05-4.15 (m, 1H), 4.90 (s, 2H), 5.65-5.75 (m, 1H), 7.30-7.50 (m, 5H).
- A solution of THF (1.5 L) containing 2-[(tert-butoxy)carbonylamino]-3-hydroxy-N-(phenylmethoxy)-4-(1,1,2,2-tetramethyl-1-silapropoxy)butanamide (9.8 g, 21.56 mmol), triphenylphosphine (17.5 g, 66.8 mmol) and diethyl azodicarboxylate (11.26 g, 64.7 mmol) was stirred at room temperature for 2 h. The solvent was evaporated in vacuo and the residue was purified under column chromatography using a mixture of ethyl acetate and hexane (1/4) as eluent to obtained 7.25 g of the desired product.
- 1H-NMR (CDCl3) δ: 0.09 (s, 6H), 0.89 (s, 9H), 1.40 (s, 9H), 3.40-3.45 (m, 1H), 3.62 (d, 1H, J=7.2 Hz), 3.88 (d, 1H, J=7.2 Hz), 4.83 (m, 1H), 4.94 (s, 2H), 5.51 (d, 1H, J=6.5 Hz), 7.35-7.45 (m, 5H).
- N-{(3S,4S)-2-oxo-1-(phenylmethoxy)-4-[(1,1,2,2-tetramethyl-1-silapropoxy)methyl]azetidin-3-yl}(tert-butoxy)carboxamide (2.80 g, 6.41 mmol) was dissolved in THF (50 mL) and pyridine (5 mL). Pyridine-hydrofluoride complex (4.0 mL, 2.6 eq of pyridine, 24 eq of HF) was added at −20° C. After 10 min, the mixture was warmed up at room temperature and stirred for 3.5 h. Phosphoric acid buffer (0.025 M, KH2PO4/Na2HPO4; ratio 1/1,400 mL) was added and the resulting solution was extracted with ethyl acetate (3×100 mL). The organic phase was dried over Na2SO4 and the solvent was evaporated in vacuo. 2.04 g of the desired product was obtained and used for the next step.
- 1H-NMR (DMSO-d6) δ: 1.38 (s, 9H), 3.50-3.60 (m, 2H), 3.95-4.05 (m, 1H), 4.70-4.80 (m, 1H), 4.94 (s, 2H), 5.00-5.10 (m, 1H), 7.20-7.30 (m, 1H), 7.35-7.50 (m, 5H).
- Preparation of {(2S,3S)-3-[(tert-butoxy)carbonylamino]-4-oxo-1-(phenylmethoxy)azetidin-2-yl}methyl aminooate (reaction done according to procedures described in Chem., Eur. J. 2005, 1949)
- In anhydrous dichloromethane (100 mL), N-[(3S,4S)-4-(hydroxymethyl)-2-oxo-1-(phenylmethoxy)azetidin-3-yl](tert-butoxy)carboxamide (1.0 g, 3.1 mmol) and trichloroacetyl chloride (1.11 mL, 9.3 mmol) were stirred at 5° C. for 30 min. Then aluminium oxide (9.6 g) was added and the solvent was remove in vacuo. After 2 h at room temperature, the residue was taking up with ethyl acetate (40 mL) and stirred for 30 min. The eluent was concentrated and the residue was purified by column chromatography using ethyl acetate/hexane (1/2) as eluent to afford 0.895 g of the desired compound.
- 1H-NMR (DMSO-d6) δ: 1.39 (s, 9H), 3.90-4.20 (m, 3H), 4.80-4.90 (m, 1H), 4.91 (s, 2H), 6.50-6.80 (broad band for NH2, 2H), 7.30-7.50 (m, 5H), 7.55-7.60 (m, 1H).
- {(2S,3S)-3-[(tert-butoxy)carbonylamino]-4-oxo-1-(phenylmethoxy)azetidin-2-yl}methyl aminooate (0.086 g, 0.24 mmol) was dissolved in a mixture of ethyl acetate (4 mL) and methanol (4 mL) under hydrogen atmosphere at room temperature in presence of Pd/C (10%, 25 mg). The reaction was stirred for 2 h and the mixture was filtrated over celite bed. The filtrate was evaporated in vacuo to give 0.055 g of the desired compound.
- 1H-NMR (DMSO-d6) δ: 1.39 (s, 9H), 3.95-4.10 (m, 3H), 4.75-4.80 (m, 1H), 6.45-6.70 (broad band for NH2, 2H), 7.57 (d, 1H, J=6.0 Hz).
- The titled compound was prepared from {(2S,3S)-3-[(tert-butoxy)carbonylamino]-1-hydroxy-4-oxoazetidin-2-yl}methyl aminooate according to the procedures described in J. Med. Chem. 1985, 1447 and J. Antibiotics, 1985, 813.
- 1H-NMR (CDCl3) δ: 0.02 (s, 9H), 0.99 (t, 2H, J=8.6 Hz), 1.37 (s, 9H), 3.90-4.30 (m, 5H), 4.53 (dd, 2H, J=16.4, 21.6 Hz), 4.84 (dd, 1H, J=5.4, 9.4 Hz), 6.70-6.40 (broad band for NH2, 2H), 7.48 (d, 1H, J=9.6 Hz)
- Final assembly and deprotection steps were done similarly according to the method described for the example 1 and J. Med. Chem. 1985, 1447.
- The titled compound was prepared following scheme 1.
- The preparation of the compound of formula A (2Z)-3-{[1,5-bis(diphenylmethoxy)-4-oxo(2-hydropyridyl)]methoxy}-2-{5-[(triphenylmethyl)amino](1,2,4-thiadiazol-3-yl)}-3-azaprop-2-enoic acid was achieved according to the procedures described in example 1 from 2-oxo-2-{5-[(triphenylmethyl)amino](1,2,4-thiadiazol-3-yl)}acetic acid (EP-A-0 333 154 and GB-A-2102423).
- The preparation of the compound of formula B [(2S,3S)-3-amino-1-(hydroxysulfonyloxy)-4-oxoazetidin-2-yl]methyl aminooate was achieved according to the procedures described in J. Antibiotics 1985, 1536 from {(2S,3S)-3-[(tert-butoxy)carbonylamino]-1-hydroxy-4-oxoazetidin-2-yl}methyl aminooate (example 12).
- Final assembly and deprotection steps were done similarly according to the method described for the example 1 and J. Med. Chem. 1985, 1447.
- Compound 8 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding hydroxylamine derivative (NH2—O—R4) was prepared in analogy to the procedure described in J. Med. Chem. 2004, 6349.
- Compound 9 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding azetidinone ring of formula B was prepared in analogy to the procedures described in J. Am. Chem. Soc. 1980, 7076 and J. Org. Chem. 1982, 5160.
- Compound 13 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding azetidinone ring or formula B was prepared in analogy to the procedures described in J. Antibiotics 1986, 76.
- Compound 14 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding azetidinone of formula B was prepared in analogy to the procedures described in DE-A-3229439.
- Compound 15 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding heterocycle of the carboxylic acid derivative of formula A was prepared in analogy to the procedures described in Russ. J. Org. Chem. 1995, 240 and J. Antibiotics 1983 1020.
- Compound 16 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding heterocycle of the carboxylic acid derivative of formula A was prepared in analogy to the procedures described in Z. Chem 1975, 233 and J. Antibiotics 1983, 1020.
- Compound 17 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding heterocycle of the carboxylic acid derivative of formula A was prepared in analogy to the procedures described in U.S. Pat. No. 4,394,504 and J. Antibiotics 1983, 1020.
- Compounds 18 and 19 were prepared in analogy to the procedures described in WO-A-02/22613. The corresponding heterocycles of the carboxylic acid derivatives of formula A was prepared in analogy to the procedures described in J. Am. Chem. Soc. 1959, 2452, WO-A-95/33724 and J. Antibiotics 1983, 1020 using respectively the methyl hydrazine and hydrazine as starting material.
- Compound 20 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding heterocycle of the carboxylic acid derivative of formula A was prepared in analogy to the procedures described in U.S. Pat. No. 4,394,504 but using 2-amino-6-picoline as starting material.
- Compound 24 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding azetidinone ring of formula B was prepared in analogy to the procedures described in example 13 and J. Antibiotics 1983, 1201.
- Compound 25 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding azetidinone ring of formula B was prepared in analogy to the procedures described in example 13.
- Compound 27 was prepared in analogy to the procedures described in WO-A-02/22613. The corresponding hydroxylamine derivative (NH2—O—R4) was prepared according to the synthetic scheme B-3-II.
- Compound 30 was prepared in analogy to the procedures described in example 7 using the same compound of formula B and the compound of formula A described in example 13.
- Compound 31 was prepared in analogy to the procedures described in example 6 using the same compound of formula B and the compound of formula A described in example 12.
- Compound 32 was prepared in analogy to the procedures described in example 6 using the same compound of formula B and the compound of formula A described in example 13.
- Compound 35 was prepared in analogy to the procedures described in examples 4 and 6 for preparing the compound of formula B and of example 13 for preparing compound of formula A.
- Compound 36 was prepared in analogy to the procedures described in example 4 using the same compound of formula B and the compound of formula A described in example 12.
- Compound 37 was prepared in analogy to the procedures described in example 4 using the same compound of formula B and the compound of formula A described in example 13.
- Compound 38 was prepared in analogy to the procedures described in example 6 and after reduction of the N-hydroxy group to NH (J. Am. Chem. Soc. 1980, 7076), the final sulfonylation was performed in analogy to example 3 to obtain the compound of formula B. Procedures of example 12 were used for preparing the compound of formula A.
- Compound 39 was prepared in analogy to the procedures described in example 6 and after reduction of the N-hydroxy group to NH (J. Am. Chem. Soc. 1980, 7076), the final sulfonylation was performed in analogy to example 3 to obtain the compound of formula B.
- Compound 40 was prepared in analogy to the procedures described in example 6 and after reduction of the N-hydroxy group to NH (J. Am. Chem. Soc. 1980, 7076), the final sulfonylation was performed in analogy to example 3 to obtain the compound of formula B. Procedures of example 13 were used for preparing the compound of formula A.
- Compound 41 was prepared in analogy to the procedures described in example 12 for preparing the compound of formula B.
- Compound 43 was prepared in analogy to the procedures described in example 12 for preparing the compound of formula B. Procedures of example 13 were used for preparing the compound of formula A.
- Compound 44 was prepared in analogy to the procedures described in example 12 and J. Antibiotics 1983, 1201 for preparing the compound of formula B.
- Compound 45 was prepared in analogy to the procedures described in example 12 and J. Antibiotics 1983, 1201 for preparing the compound of formula B. Procedures of example 12 were used for preparing the compound of formula A.
- Compound 46 was prepared in analogy to the procedures described in example 12 and J. Antibiotics 1983, 1201 for preparing the compound of formula B. Procedures of example 13 were used for preparing the compound of formula A.
- Compound 47 was prepared in analogy to the procedures described in example 12 for preparing the compound of formula B. Procedures of example 12 were used for preparing the compound of formula A.
- In the following table X the analytical data for all compounds of formula (I) made are presented:
-
TABLE X Compound Number (Example Number) 1H-NMR (DMSO-d6) δ in ppm Mass m/z: 5 (8) 1.41 (d, 3H, J = 6.0 Hz), 3.70 (m, 1H), 3.5-6 (broad band for OH and NH2), 4.20 (s, 3H), 4.43 (dd, 1H, J = 2.56-7.6 Hz), 5.32 (s, 2H), 6.85 (s, 1H), 6.98 (s, 1H), 8.52 (s, 1H), 9.46 (d, 1H, J = 7.6 Hz). 6 (1) 1.41 (d, 3H, J = 6.0 Hz), 3.62 (s, 3H), 3.67 (m, 1H) 4.43 (dd, 1H, J = 2.5, 7.7 Hz), 5.06 (s, 2H), 6.26 (s, 1H), 6.75 (s, 1H), 7.23 (s br, 2H), 7.45 (s, 1H), 9.40 (d, 1H, J = 7.7 Hz). 7 (9) 1.42 (d, 3H, J = 6.1 Hz), 3.71 (qd, 1H, J = 2.4 and 6.1 Hz), 4.47 (dd, 1H, J = 2.4 and 7.8 Hz), 5.32 (s, 2H), 6.87 (s, 1H), 7.09 (s, 1H), 7.2-7.5 (Broad Band for NH2), 8.50 (s, 1H), 9.53 (d, 1H, J = 7.8 Hz). 9 3.33 (m, 1H), 3.67 (m, 1H), 4.98 (m, 1H), 5.28 (s, 2H), 6.85 (s, 1H), 6.99 (s, 1H), 7.16 (Broad Band for NH2), 8.09 (s, 1H), 9.46 (d, 1H, J = 7.8 Hz). 10 (10) 1.42 (d, 3H, J = 6.1 Hz), 1.99 (s, 3H), 3.67 (m, 1H), 3.79 (m, 2H), 4.23 (m, 2H), 4.43 (m, 1H), 6.86 (s, 1H), 9.15 (m, 1H), 9.93 (s broad, 1H). 11 (11) 1.42 (d, 3H, J = 6.2 Hz), 3.74 (m, 1H), 4.48 (m, 1H), 5.41 (s, 2H), 6.94 (s, 1H), 7.20 (s, 1H), 8.29 (s, 1H), 9.59 (d, 1H, J = 7.7 Hz). 12 (2) 1.39 (d, 3H, J = 6.2 Hz), 4.02 (m, 1H), 4.48 (m, 1H), 5.30 (s, 2H), 6.84 (s, 1H), 7.05 (s, 1H), 7.27 (br, s, 2H), 8.16 (s, 1H), 9.69 (d, 1H, J = 7.7 Hz). 13 1.61 (d, 3H, J = 6.2 Hz), 4.43 (m, 1H), 4.87 (m, 1H), 5.30 (s, 2H), 6.89 (s, 1H), 6.99 (s, 1H), 7.27 (br, s, 2H), 8.11 (s, 1H), 9.57 (d, 1H, J = 7.7 Hz). 14 518 (M + 1) 15 1.41 (d, 3H, J = 6.2 Hz), 3.65 (m, 1H), 4.44 (m, 1H), 5.34 (s, 2H), 7.06 (s, 1H), 8.17 (s, 1H), 9.47 (d, 1H, J = 7.7 Hz). 16 1.41 (d, 3H, J = 6.2 Hz), 3.62 (m, 1H), 4.44 (m, 1H), 5.27 (s, 2H), 6.76 (s, 1H), 7.83 (s, 1H), 8.10 (broad s, 2H), 9.64 (d, 1H, J = 7.7 Hz). 17 1.42 (d, 3H, J = 6.2 Hz), 3.10 (m, 1H), 4.47 (m, 1H), 5.31 (s, 2H), 6.10 (s, 1H), 8.86 (s, 1H), 7.90 (s, 1H), 9.72 (d, 1H, J = 7.7 Hz). 18 1.42 (d, 3H, J = 6.2 Hz), 3.51 (m, 3H), 3.65 (m, 1H), 4.42 (m, 1H), 5.17 (s, 2H), 5.47 (s, 1H), 6.10 (s, 1H), 6.85 (s, 1H), 7.20 (br, s, 2H), 7.95 (s, 1H), 9.28 (d, 1H, J = 7.7 Hz). 19 1.38 (d, 3H, J = 6.2 Hz), 3.68 (m, 1H), 4.39 (m, 1H), 5.17 (s, 1H), 5.31 (s, 2H), 6.78 (s, 1H), 7.89 (s, 1H), 9.24 (d, 1H, J = 7.7 Hz). 20 1.43 (d, 3H, J = 6.2 Hz), 3.73 (m, 1H), 4.48 (m, 1H), 5.38 (s, 2H), 6.72 (d, 1H, J = 5.7 Hz), 6.83 (d, 1H, J = 5.7 Hz), 6.98 (s, 1H), 7.62 (t, 1H, J = 5.7 Hz), 8.04 (s, 1H), 9.54 (d, 1H, J = 7.7 Hz). 21 (3) 1.43 (d, 3H), 3.67 (m, 1H), 4.45 (m, 1H), 5.47 (s, 2H), 6.56 (s, 1H), 7.05 (s, 1H), 8.10-8.20 (m, 3H), 9.50 (d, 1H, J = 7.7 Hz) 22 (4) 1.41 (d, 3H, J = 6.2 Hz), 4.01 (m, 1H), 4.37 (m, 1H), 4.52 (AB, 2H, J = 16.4 Hz), 5.18 (s, 2H), 6.73 (s, 1H), 6.81 (s, 1H), 7.28 (br, s, 2H), 7.84 (s, 1H), 9.44 (d, 1H, J = 7.7 Hz). 23 (5) 1.35-1.45 (m, 5H), 3.91 (m, 1H), 4.42 (m, 1H), 4.53 (m, 1H), 5.29 (s, 2H), 6.84 (s, 1H), 6.99 (s, 1H), 7.37 (br, s, 2H), 8.16 (s, 1H), 9.51 (d, 1H, J = 7.7 Hz). 24 4.40-4.80 (m, 3H), 5.20 (m, 1H), 5.27 (s, 2H), 6.81 (s, 1H), 7.06 (s, 1H), 7.30 (br, s, 2H), 8.17 (s, 1H), 9.56 (d, 1H, J = 7.7 Hz). 25 4.15 (m, 2H), 4.42 (m, 1H), 5.20-5.30 (m, 3H), 6.40-6.60 (br, s, 2H), 6.82 (s, 1H), 6.91 (s, 1H), 7.20-7.40 (br, s, 2H), 7.99 (s, 1H), 9.42 (d, 1H, J = 7.7 Hz) 26 (6) 1.22 (d, 3H), 1.42 (d, 3H), 4.63 (d, 1H, J = 7.7 Hz), 5.23 (s, 2H), 6.81 (s, 1H), 7.00 (s, 1H), 7.27 (br, s, 2H), 8.08 (s, 1H), 9.59 (d, 1H, J = 7.7 Hz) 27 1.38 (m, 3H), 3.72 (m, 1H), 4.44 (m, 1H), 5.12 (s, 2H), 6.81 (s, 1H), 7.00 (s, 1H), 7.27 (br, s, 2H), 8.08 (s, 1H), 9.59 (d, 1H, J = 7.7 Hz) 28 488 (M + 1) 29 (7) 1.31 (d, 3H, J = 6.2 Hz), 3.96 (m, 1H), 4.44 (m, 1H), 5.27 (s, 2H), 6.80 (s, 1H), 7.40-7.60 (br, s, 2H), 7.82 (m, 1H), 8.11 (m, 1H), 8.22 (m, 1H), 8.75 (m, 1H), 9.39 (d, 1H, J = 7.7 Hz). 30 1.38 (d, 3H, J = 6.2 Hz), 3.90 (m, 1H), 4.46 (m, 1H), 5.21 (s, 2H), 6.69 (s, 1H), 7.74 (s, 1H), 8.15 (br, s, 2H), 9.68 (d, 1H, J = 7.7 Hz) 31 1.22 (s, 3H), 1.42 (s, 3H), 4.58 (d, 1H, J = 7.7 Hz), 5.17 (s, 2H), 6.87 (s, 1H), 7.40 (br, s, 2H), 7.88 (s, 1H), 9.56 (d, 1H, J = 7.7 Hz). 32 1.24 (s, 3H), 1.43 (s, 3H), 4.61 (d, 1H, J = 7.7 Hz), 5.38 (s, 2H), 7.09 (s, 1H), 8.16 (br, s, 2H), 8.21 (s, 1H), 9.63 (d, 1H, J = 7.7 Hz). 33 1.23 (s, 3H), 1.48 (s, 3H), 4.49 (AB, 2H, J = 16.0 Hz), 4.70 (d, 1H, J = 7.7 Hz), 5.28 (s, 2H), 6.85 (s, 2H), 7.04 (s, 1H), 8.16 (s, 1H), 9.55 (d, 1H, J = 7.7 Hz). 34 1.23 (s, 3H), 1.47 (s, 3H), 4.48 (AB, 2H, J = 16. Hz), 4.64 (d, 1H, J = 7.7 Hz), 5.26 (s, 2H), 7.04 (s, 1H), 7.42 (br, s, 2H), 8.16 (s, 1H), 9.49 (d, 1H, J = 7.7 Hz). 35 1.24 (s, 3H), 1.48 (s, 3H), 4.49 (AB, 2H, J = 16.0 Hz), 4.68 (d, 1H, J = 7.7 Hz), 5.30 (s, 2H), 6.88 (s, 2H), 7.98 (s, 1H), 8.17 (br, s, 2H), 9.54 (d, 1H, J = 7.7 Hz). 36 1.41 (d, 3H, J = 6.2 Hz), 3.90 (m, 1H), 4.42 (m, 1H), 4.52 (AB, 2H, J = 16.4 Hz), 5.28 (s, 2H), 7.00 (s, 1H), 7.44 (br, s, 2H), 8.11 (s, 1H), 9.42 (d, 1H, J = 7.7 Hz). 37 1.42 (d, 3H, J = 6.2 Hz), 3.89 (m, 1H) 4.42 (m, 1H), 4.52 (AB, 2H, J = 16.4 Hz), 5.33 (s, 2H), 6.91 (s, 1H), 8.05 (s, 1H), 8.17 (br, s, 2H), 9.43 (d, 1H, = 7.7 Hz). 38 1.24 (s, 3H), 1.46 (s, 3H), 4.58 (d, 1H, J = 7.7 Hz), 5.17 (s, 2H), 6.87 (s, 1H), 7.42 (br, s, 2H), 7.86 (s, 1H), 9.45 (d, 1H, J = 7.7 Hz). 39 1.25 (d, 3H), 1.49 (d, 3H), 4.64 (d, 1H, J = 7.7 Hz), 5.25 (s, 2H), 6.83 (s, 1H), 7.04 (s, 1H), 7.31 (br, s, 2H), 8.12 (s, 1H), 9.47 (d, 1H, J = 7.7 Hz). 40 1.25 (s, 3H), 1.48 (s, 3H), 4.61 (d, 1H, J = 7.7 Hz), 5.35 (s, 2H), 7.04 (s, 1H), 8.10-8.15 (m, 3H), 9.46 (d, 1H, J = 7.7 Hz). 41 3.50-3.60 (m, 2H), 4.00 (m, 1H), 4.23 (m, 1H), 4.36 (m, 1H), 4.50 (m, 2H), 5.20-5.30 (m, 3H), 6.50-6.70 (br, s, 2H), 6.83 (s, 1H), 6.95 (s, 1H), 7.27 (s, 2H), 8.06 (s, 1H), 9.35 (d, 1H, J = 7.7 Hz). 42 (12) 3.50-3.60 (m, 2H), 3.95 (m, 1H), 4.20-4.40 (m, 2H), 4.45 (m, 2H), 5.17 (m, 1H), 5.27 (s, 2H); 6.50-6.70 (br, s, 2H), 6.92 (s, 1H), 7.38 (s, 2H), 7.98 (s, 1H), 9.33 (d, 1H, J = 7.7 Hz). 43 3.50-3.60 (m, 2H), 3.91 (m, 1H), 4.27 (m, 1H), 4.30 (m, 1H), 4.49 (m, 2H), 5.22 (m, 1H), 5.28 (s, 2H); 6.53 (br, s, 2H), 6.83 (s, 1H), 7.95 (s, 1H), 8.13 (s, 2H), 9.32 (d, 1H, J = 7.7 Hz). 47 4.06 (m, 1H), 4.27 (m, 1H), 4.40 (m, 1H), 5.12 (m, 1H), 5.25 (s, 2H), 6.40-6.60 (br, s, 2H), 6.98 (s, 1H), 7.40 (s, 1H), 8.03 (s, 1H), 9.34 (d, 1H, J = 7.7 Hz). 48 (13) 4.07 (m, 1H), 4.27 (m, 1H), 4.42 (m, 1H), 5.15 (m, 1H), 5.36 (s, 2H), 6.30-6.50 (br, s, 2H), 7.03 (s, 1H), 8.13 (s, 1H), 8.17 (s, 1H), 9.36 (d, 1H, J = 7.7 Hz). - The titled compound was prepared following scheme 11.
- A solution of 6-methyl nicotinamide (400 mg, 2.94 mmol, 1.0 eq) and bromoacetic acid (408 mg, 2.94 mmol, 1.0 eq) in DMF (10 mL) was stirred at room temperature for 6 days. The reaction mixture was monitored by LCMS. Solvent was then evaporated and the crude product was purified by preparative HPLC to afford 136 mg of the expected compound.
- 1H-NMR (DMSO-d6) δ (ppm): 2.80 (s, 3H); 5.66 (s, 2H); 8.13 (s, 1H); 8.24 (d, J=8.3, 1H); 8.53 (s, 1H); 8.92 (dd, J=1.8 and 8.3, 1H); 9.47 (s, 1H).
- 5-carbamoyl-1-carboxymethyl-2-methyl-pyridinium bromide (91 mg, 0.47 mmol, 1.0 eq) was added at room temperature to a stirred solution of (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (J. Med. Chem. 1998, 3961) (90 mg, 0.47 mmol, 1.0 eq) in DMSO (4 mL), followed by 1-hydroxybenzotriazol (69 mg, 0.52 mmol, 1.1 eq), dicyclohexylcarbodiimide (106 mg, 0.52 mmol, 1.1 eq) and diisopropylethylamine (96 μL, 0.56 mmol, 1.2 eq). After stirring overnight at room temperature, the reaction mixture was filtered. The mother liquid was evaporated and the crude product was dissolved in CH2Cl2 (4 mL) and filtered. The resulting solid was purified by preparative HPLC to afford 46 mg of the expected compound.
- 1H-NMR (DMSO-d6) δ (ppm): 1.82 (m, 1H); 2.42 (m, 1H); 2.73 (d, J=5.3, 3H); 3.25 and 3.55 (2m, 1H); 4.05 (m, 1H); 4.40 and 4.62 (2t, J=4.7, 1H); 5.19 and 5.31 (2d, J=4.3, 1H); 5.55-6.05 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.12 (d, J=7.0, 1H); 8.22 (d, J=8.3, 1H); 8.53 (d, J=10.0, 1H); 8.89 (dd, J=1.8 and 8.3, 1H); 9.36 (dd, J=1.8 and 10.0, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available N-methyl nicotinamide as starting materials.
- +ESI-MS spectrum: m/z: 289 [M+H—SO3]+.
- The titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-aminopyridine as starting materials.
- +ESI-MS spectrum: m/z: 326 [M]+.
- The titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available isoquinoline as starting materials.
- −ESI-MS spectrum: m/z: 360 [M−1]+.
- The titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available isonicotinamide as starting materials.
- 1H-NMR (DMSO-d6): 1.78 (m, 1H); 2.40 (m, 1H); 3.20 and 3.50 (2m, 1H); 4.05 and 4.12 (2m, 1H); 4.43 and 4.60 (2t, J=4.7, 1H); 5.21 and 5.29 (2d, J=4.3, 1H); 5.55-6.00 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.27 (m, 1H); 8.46 (m, 2H); 8.65 (m, 1H); 9.12 (m, 2H).
- The titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 5,6,7,8-tetrahydroisoquinoline as starting materials.
- +ESI-MS spectrum: m/z: 365 [M]+.
- The titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-aminopyridine as starting materials.
- +ESI-MS spectrum: m/z: 326 [M]+.
- The titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and 3-[N-(carbamoylmethyl)carbamoyl]pyridine as starting materials.
- +ESI-MS spectrum: m/z: 411 [M]+.
- 3-[N-(carbamoylmethyl)carbamoyl]pyridine was prepared by reacting the commercially available nicotinyl chloride hydrochloride with glycinamide hydrochloride.
- The titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available nicotinoyl chloride hydrochloride and cyclopropylamine as starting materials.
- 1H-NMR (DMSO-d6): 0.60 (m, 2H); 0.78 (m, 2H); 1.77 (m, 1H); 2.40 (m, 1H); 2.92 (m, 1H); 3.23 and 3.50 (2m, 1H); 4.01 and 4.10 (2m, 1H); 4.41 and 4.61 (2t, J=4.7, 1H); 5.20 and 5.29 (2d, J=4.3, 1H); 5.58-6.05 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.30 (m, 1H); 8.95 (m, 1H); 9.01-9.13 (m, 2H); 9.36 (m, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 14 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(dimethylamino)pyridine as starting materials.
- 1H-NMR (DMSO-d6): 1.22 (s, 3H); 1.26 (s, 3H); 1.74 (m, 1H); 2.38 (m, 1H); 3.20-3.50 (m, 1H); 3.98 and 4.08 (2dd, J=8.6 and 11.2, 1H); 4.38 and 4.48 (2t, J=4.7, 1H); 5.00-5.45 (m, 3H); 7.02 and 7.07 (2d, J=7.9, 2H); 8.11 and 8.16 (2d, J=7.9, 2H).
- Preparation of sodium (1S,5R)-2-(2-bromoacetyl)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonate
- A solution of sulphur trioxide.DMF complex (4.92 g, 32.10 mmol, 1.5 eq) in DMF (10 mL) was added at 0° C. to a stirred solution of (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F, 5.25 g, 21.40 mmol, 1.0 eq) in DMF (110 mL). After 5 hours stirring at 0° C., the reaction mixture was concentrated. The remaining oil was dissolved in a minimum amount of H2O and the pH was adjusted to 6 with saturated NaHCO3 solution. The mixture was then concentrated under reduced pressure to afford 8.3 g of the expected sodium (1S,5R)-2-(2-bromoacetyl)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonate as a brown oil.
- Nicotinoyl chloride hydrochloride (286 mg, 1.61 mmol, 1.0 eq) was added at room temperature to a stirred solution of (S)-3-amino-1-N—BOC-pyrrolidine (300 mg, 1.61 mmol, 1.0 eq) in CH2Cl2 (9 mL), followed by triethylamine (337 μL, 2.42 mmol, 1.5 eq). After stirring overnight at room temperature, the reaction mixture was extracted and the organic layer was dried over Na2SO4, filtered and evaporated to afford 457 mg of the expected compound.
- A solution of (1S,5R)-2-(2-bromoacetyl)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (200 mg, 0.64 mmol, 1.0 eq) and tert-butyl (3S)-3-β-pyridylcarbonylamino)pyrrolidinecarboxylate (149 mg, 0.51 mmol, 0.8 eq) in DMF (2 mL) was stirred at room temperature for 3 days. The reaction was monitored by LCMS. Then DMF was evaporated to afford 330 mg the expected crude product which was directly used in the next step.
- A solution of 2-{2-[3-(N-{(3S)-1-[(tert-butyl)oxycarbonyl]pyrrolidin-3-yl}carbamoyl)pyridinium]acetyl}(1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonate, inner salt in DMF (4 mL) was cooled to 0° C. before the addition of trifluoroacetic acid (729 μL, 9.45 mmol, 15.0 eq). After stirring overnight at room temperature, the reaction mixture was concentrated and the crude was purified by preparative HPLC to afford 37 mg of the expected compound.
- 1H-NMR (DMSO-d6): 1.80 (m, 1H); 2.05 (m, 1H); 2.23 (m, 1H); 2.40 (m, 1H); 3.33 (m, 5H); 4.01 and 4.10 (2m, 1H); 4.13 and 4.61 (2t, J=4.7, 1H); 4.56 (m, 1H); 5.18 and 5.30 (2d, J=4.1, 1H); 5.60-6.05 (AB part of an ABX system, the X part being in the 15N spectrum, 2H); 8.35 (m, 1H); 9.07 (m, 3H); 9.38 (m, 1H); 9.44 (s, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available nicotinamide as starting materials.
- 1H-NMR (DMSO-d6): 1.78 (m, 1H); 2.40 (m, 1H); 3.23 and 3.50 (2m, 1H); 4.03 and 4.13 (2dd, J=8.6 and 11.0, 1H); 4.42 and 4.63 (2t, J=4.7, 1H); 5.20 and 5.32 (2d, J=4.3, 1H); 5.55-6.05 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.18 (d, J=3.7, 1H); 8.33 (q, J=6.2 and 7.9, 1H); 8.57 and 8.62 (2s, 1H); 9.02-9.12 (m, 2H); 9.42 (d, J=6.5, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3,4-pyridine dicarboxamide as starting materials.
- 1H-NMR (DMSO-d6): 1.74 (m, 1H); 2.40 (m, 1H); 3.25 and 3.49 (2m, 1H); 4.03 and 4.11 (2m, 1H); 4.41 and 4.62 (2t, J=4.7, 1H); 5.22 and 5.29 (2d, J=4.3, 1H); 5.55-6.00 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.04 (m, 1H); 8.14 (d, J=10.8, 1H); 8.24 (m, 2H); 8.45 (d, J=9.1, 1H); 9.10 (m, 1H); 9.24 (2s, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 4-isopropyl pyridine as starting materials.
- 1H-NMR (DMSO-d6): 1.28 and 1.30 (2d, J=2.3, 6H); 1.77 (m, 1H); 2.42 (m, 1H); 3.10-3.55 (m, 2H); 4.00 and 4.10 (2m, 1H); 4.40 and 4.60 (2t, J=4.7, 1H); 5.19 and 5.29 (2d, J=4.2, 1H); 5.45-5.90 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.11 (m, 2H); 8.81 (d, J=6.7, 1H); 8.87 (d, J=7.1, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available methyl-5-methylnicotinate as starting materials.
- 1H-NMR (DMSO-d6): 1.77 (m, 1H); 2.41 (m, 1H); 2.58 (d, J=5.9, 3H); 3.24 and 3.49 (2m, 1H); 3.98 (d, J=2.5, 3H); 4.02 and 4.12 (2m, 1H); 4.41 and 4.61 (2t, J=4.7, 1H); 5.20 and 5.29 (2d, J=4.3, 1H); 5.55-6.00 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.95 (m, 1H); 9.06 and 9.15 (2s, 1H); 9.41 and 9.45 (2s, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 2-methyl nicotinic acid methyl ester as starting materials.
- 1H-NMR (DMSO-d6): 1.82 (m, 1H); 2.40 (m, 1H); 2.81 (d, J=2.8, 3H); 3.29 and 3.57 (2m, 1H); 3.96 (s, 3H); 4.06 (m, 1H); 4.40 and 4.62 (2t, J=4.8, 1H); 5.20 and 5.34 (2d, J=4.3, 1H); 5.65-6.05 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.17 (m, 1H); 8.91 (m, 1H); 9.08 (m, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3-carboxypyridine methyl ester as starting materials.
- 1H-NMR (DMSO-d6): 1.80 (m, 1H); 2.39 (m, 1H); 3.22 and 3.52 (2m, 1H); 3.98 (d, J=2.3, 3H); 4.01 and 4.12 (2m, 1H); 4.41 and 4.61 (2t, J=4.7, 1H); 5.20 and 5.29 (2d, J=4.2, 1H); 5.65-6.05 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.35 (m, 1H); 9.07 (m, 1H); 9.13 and 9.21 (2m, 1H); 9.57 and 9.62 (2s, 1H); 12.75 (br, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 4-propionyl pyridine as starting materials.
- 1H-NMR (DMSO-d6): 1.13 (dt, J=2.5 and 7.1, 3H); 1.80 (m, 1H); 2.41 (m, 1H); 3.15-3.55 (m, 3H); 4.02 and 4.11 (2dd, J=8.8 and 11.1, 1H); 4.41 and 4.61 (2t, J=4.7, 1H); 5.20 and 5.29 (2d, J=4.3, 1H); 5.60-6.05 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.53 and 8.56 (2d, J=7.1, 2H); 9.11 and 9.18 (2d, J=7.1, 2H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 4-pyridine carbothioamide as starting materials.
- 1H-NMR (DMSO-d6): 1.79 (m, 1H); 2.39 (m, 1H); 3.24 and 3.49 (2m, 1H); 4.00 and 4.10 (2m, 1H); 4.41 and 4.61 (2t, J=4.7, 1H); 5.21 and 5.28 (2d, J=4.3, 1H); 5.55-5.95 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.28 (dd, J=6.8 and 10.8, 2H); 8.96 and 9.02 (2d, J=6.8, 2H); 10.31 and 10.74 (2br, 2H); 12.7 (br, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available ethyl-3-pyridyl acetate as starting materials.
- 1H-NMR (DMSO-d6): 1.22 (dt, J=0.9 and 7.1, 3H); 1.75 (m, 1H); 2.41 (m, 1H); 3.22 and 3.49 (2m, 1H); 4.05 (m, 3H); 4.15 (dq, J=0.9 and 7.1, 2H); 4.40 and 4.61 (2t, J=4.6, 1H); 5.20 and 5.30 (2d, J=4.3, 1H); 5.50-5.95 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.19 (m, 1H); 8.61 (m, 1H); 8.87 and 8.92 (2m, 1H); 8.89 and 8.97 (2s, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3-(trifluoromethyl)pyridine as starting materials.
- 1H-NMR (DMSO-d6): 1.80 (m, 1H); 2.40 (m, 1H); 3.24 and 3.51 (2m, 1H); 4.04 and 4.12 (2m, 1H); 4.42 and 4.62 (2t, J=4.7, 1H); 5.21 and 5.29 (2d, J=4.1, 1H); 5.65-6.05 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.47 (m, 1H); 9.17 (m, 1H); 9.24 and 9.30 (2d, J=6.2, 1H); 9.67 and 9.76 (2s, 1H); 12.7 (br, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3,4-lutidine as starting materials.
- 1H-NMR (DMSO-d6): 1.78 (m, 1H); 2.40 (d, J=3.7, 3H); 2.47 (m, 1H); 2.55 (d, J=3.6, 3H); 3.21 and 3.49 (2m, 1H); 4.06 (m, 1H); 4.40 and 4.60 (2t, J=4.7, 1H); 5.20 and 5.28 (2d, J=4.3, 1H); 5.40-5.85 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 7.97 (m, 1H); 8.70 (m, 2H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3-benzylpyridine as starting materials.
- 1H-NMR (DMSO-d6): 1.78 (m, 1H); 2.40 (m, 1H); 3.21 and 3.41 (2m, 1H); 4.01 and 4.10 (2m, 1H); 4.21 (d, J=7.3, 2H); 4.40 and 4.60 (2t, J=4.7, 1H); 5.20 and 5.28 (2d, J=4.2, 1H); 5.50-5.95 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 7.31 (m, 5H); 8.12 (m, 1H); 8.55 (t, J=7.6, 1H); 8.80 and 8.85 (2d, J=6.3, 1H); 8.90 and 9.00 (2s, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3-phenyl pyridine as starting materials.
- 1H-NMR (DMSO-d6): 1.80 (m, 1H); 2.40 (m, 1H); 3.23 and 3.51 (2m, 1H); 4.10 (m, 1H); 4.42 and 4.62 (2t, J=4.7, 1H); 5.21 and 5.33 (2d, J=4.2, 1H); 5.60-6.00 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 7.62 (m, 3H); 7.88 (m, 2H); 8.28 (m, 1H); 8.93 (2d, J=6.3, 1H); 8.99 (m, 1H); 9.41 and 9.48 (2s, 1H).
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available nicotinoyl chloride hydrochloride and (R)-3-amino-1-N—BOC-pyrrolidine as starting materials.
- +ESI-MS spectrum: m/z: 423 [M]+.
- The titled compound was prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and a the commercially available 4-amino-3-pyridinecarboxamide as starting materials.
- 1H-NMR (DMSO-d6): 1.75 (m, 1H); 2.40 (m, 1H); 3.22 and 3.45 (2m, 1H); 4.01 and 4.10 (2dd, J=8.6 and 11.3, 1H); 4.40 and 4.60 (2t, J=4.8, 1H); 4.95-5.50 (m, 3H); 7.03 (dd, J=7.4 and 9.4, 1H); 7.83 (br, 1H); 8.05 (m, 1H); 8.15 (br, 1H); 8.65 (m, 1H); 8.99 and 9.04 (2br, 2H).
- The titled compound has been prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 5-methyl nicotinamide as starting materials.
- 1H-NMR (DMSO-d6): 1.78 (m, 1H); 2.39 (m, 1H); 2.54 (m, 3H); 3.23 and 3.49 (2m, 1H); 4.05 (m, 1H); 4.41 and 4.61 (2t, J=4.7, 1H); 5.20 and 5.29 (2d, J=4.3, 1H); 5.50-6.00 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 8.52 (d, J=16.0, 1H); 8.89 (d, J=7.2, 1H); 8.95 and 9.04 (2s, 1H); 9.24 (m, 2H); 12.6 (br, 1H).
- The titled compound has been prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and 3-pyridylcarbamide.
- 1H-NMR (DMSO-d6): 1.78 (m, 1H); 2.40 (m, 1H); 3.23 and 3.49 (2m, 1H); 3.98 and 4.10 (2m, 1H); 4.40 and 4.59 (2t, J=4.7, 1H); 5.20 and 5.28 (2d, J=4.2, 1H); 5.40-6.00 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 6.51 (br, 2H); 8.00 (m, 1H); 8.28 (m, 1H); 8.49 (m, 1H); 9.20 (m, 1H); 9.67 (d, J=12.2, 1H).
- 3-Pyridylcarbamide was prepared according to the procedure described in Heterocycles 1983, 1899.
- The titled compound has been prepared following scheme 11 and in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 5-amino-3-pyridinecarboxamide as starting materials.
- 1H-NMR (DMSO-d6): 1.78 (m, 1H); 2.41 (m, 1H); 3.22 and 3.46 (2m, 1H); 3.98 and 4.09 (2m, 1H); 4.40 and 4.59 (2t, J=4.6, 1H); 5.20 and 5.26 (2d, J=4.1, 1H); 5.40-5.85 (AB part of a ABX system, the X part being in the 15N spectrum, 2H); 6.88 (d, J=11.5, 2H); 7.95 (m, 1H); 8.07 (m, 2H); 8.41 (m, 2H).
- Triethylamine (7.36 mL, 52.82 mmol, 1.1 eq) was added at 0° C. to a stirred solution of N—BOC-1,4-phenylene diamine (10.00 g, 48.02 mmol, 1.0 eq) in CH3CN (240 mL), followed by 9-fluorenylmethyloxycarbonyl chloride (14.90 g, 57.62 mmol, 1.2 eq). The resulting mixture was allowed to come at room temperature. After 4 hours stirring at room temperature, the reaction mixture was filtered to afford 20.60 g of the crude expected product as a white powder which was used in the next step without any further purification.
- 1H-NMR (DMSO-d6): 1.46 (s, 9H); 4.29 (t, J=6.6, 1H); 4.44 (d, J=6.3, 2H); 7.30-7.45 (m, 8H); 7.75 (d, J=7.4, 2H); 7.91 (d, J=7.4, 2H); 9.22 (br, 1H); 9.59 (br, 1H).
- TFA (55.30 mL, 717.76 mmol, 15.0 eq) was added at 0° C. to a stirred solution of (tert-butoxy)-N-{4-[(fluoren-9-yl-methoxy)carbonylamino]phenyl}carboxamide (20.60 g, 47.85 mmol, 1.0 eq) in CH2Cl2 (900 mL). The resulting solution was allowed to come at room temperature. After stirring overnight at room temperature, the reaction mixture was concentrated to dryness and the residue was triturated in water. Then the mixture was filtered to afford 15.80 g of the expected crude product as a white powder.
- 1H-NMR (DMSO-d6): 4.30 (t, J=6.4, 1H); 4.49 (d, J=6.4, 2H); 7.06 (d, J=7.7, 2H); 7.40 (m, 6H); 7.74 (d, J=7.4, 2H); 7.91 (d, J=7.4, 2H); 8.95 (br, 2H); 9.73 (br, 1H).
- N,N′-Disuccinimidylcarbonate (16.20 g, 63.26 mmol, 1.1 eq) was added at room temperature to a stirred solution of N-(4-aminophenyl)(fluoren-9-ylmethoxy)carboxamide (20.00 g, 60.53 mmol, 1.0 eq) in CH3CN (1100 mL). After stirring overnight at room temperature, the reaction mixture was filtered to afford 28.50 g of the expected crude product as a white powder.
- 1H-NMR (DMSO-d6): 2.83 (br, 4H); 4.31 (t, J=6.4, 1H); 4.48 (m, 2H); 7.20-7.50 (m, 8H); 7.5 (d, J=7.4, 2H); 7.91 (d, J=7.4, 2H); 9.72 (br, 1H); 10.67 (br, 1H).
- A solution of N-{4-[(2,5-dioxoazolidinyloxy)carbonylamino]phenyl}(fluoren-9-ylmethoxy)carboxamide (16.10 g, 34.15 mmol, 1.0 eq) in H2O/CH3CN (1/1, v/v, 360 mL) was reacted at room temperature with NaHCO3 (2.86 g, 34.15 mmol, 1.0 eq) and N—BOC-ethylene diamine (5.47 g, 34.15 mmol, 1.0 eq). After stirring overnight at room temperature, the reaction mixture was filtered to afford 16.36 g of the expected crude product as a white solid.
- 1H-NMR (DMSO-d6): 1.37 (s, 9H); 2.98 (m, 2H); 3.11 (m, 2H); 4.29 (t, J=6.4, 1H); 4.44 (d, J=6.4, 2H); 6.10 (m, 1H); 6.85 (m, 1H); 7.30-7.50 (m, 8H); 7.74 (d, J=7.4, 2H); 7.90 (d, J=7.4, 2H); 8.40 (s, 1H); 9.53 (br, 1H).
- Piperidine (9.68 mL, 97.75 mmol, 5.0 eq) was added at room temperature to a stirred solution of N-{4-[({2-[(tert-butoxy)carbonylamino]ethyl}amino)carbonylamino]phenyl}(fluoren-9-ylmethoxy)carboxamide (10.10 g, 19.55 mmol, 1.0 eq) in DMF (140 mL). After 2 hours stirring at room temperature, water was added to the reaction mixture and precipitation occurred. The resulting mixture was filtered, and the liquid phase was concentrated to afford 6.75 g of the expected product as an orange oil:
- 1H-NMR (DMSO-d6): 1.37 (s, 9H); 2.98 (m, 2H); 3.11 (m, 2H); 4.69 (s, 2H); 6.00 (t, J=5.5, 1H); 6.44 (d, J=8.6, 2H); 6.81 (t, J=5.3, 1H); 6.97 (d, J=8.6, 2H); 8.00 (s, 1H).
- N,N′-Disuccinimidylcarbonate (5.49 g, 21.44 mmol, 1.1 eq) was added at room temperature to a stirred solution of N-(4-aminophenyl)({2-[(tert-butoxy)carbonylamino]ethyl}amino)carboxamide (6.75 g, 19.49 mmol, 1.0 eq) in CH3CN (350 mL). After stirring overnight at room temperature, the reaction mixture was filtered and to afford 9.70 g of the expected crude product as a light brown solid.
- 1H-NMR (DMSO-d6): 1.37 (s, 9H); 2.82 (br, 4H); 2.99 (m, 2H); 3.11 (m, 2H); 6.12 (t, J=5.2, 1H); 6.85 (t, J=5.5, 1H); 7.27 (d, J=8.9, 2H); 7.36 (d, J=8.9, 2H); 7.95 (s, 1H); 8.53 (s, 1H).
- TFA (11.59 mL, 150.54 mmol, 5.0 eq) was added at room temperature to a stirred suspension of ({2-[(tert-butoxy)carbonylamino]ethyl}amino)-N-{4-[(2,5-dioxoazolidinyloxy)carbonylamino]phenyl}carboxamide (13.8 g, 30.11 mmol, 1.0 eq) in CH2Cl2 (165 mL). After stirring overnight at room temperature, solvent was evaporated and the crude product was triturated with Et2O to afford 14.2 g of the expected crude product as a beige solid and as the trifuoroacetic acid salt.
- 1H-NMR (DMSO-d6): 2.82 (br, 4H); 2.88 (m, 2H); 3.30 (m, 2H); 6.51 (t, J=5.6, 1H); 7.30 (d, J=8.9, 2H); 7.40 (d, J=8.9, 2H); 7.77 (br, 3H); 8.85 (s, 1H); 10.61 (s, 1H).
- (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H, 2.0 g, 10.41 mmol, 1.0 eq) was dissolved in H2O (12.5 mL). Then CH3CN (100 mL) was added at room temperature to the solution, followed by NaHCO3 (1.57 g, 18.73 mmol, 1.8 eq) and [(2-aminoethyl)amino]-N-{4-[(2,5-dioxoazolidinyloxy)carbonylamino]phenyl}carboxamide (6.89 g, 14.57 mmol, 1.4 eq). After stirring overnight at room temperature, the reaction mixture was filtered to afford 3.27 g of the expected (1S,5R)-2-[N-(4-{[(2-aminoethyl)amino]carbonylamino}phenyl)carbamoyl]-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid as a white solid.
- 1H-NMR (DMSO-d6): 1.65 (m, 1H); 2.30 (dd, J=5.8 and 13.5, 1H); 2.90 (m, 2H); 3.18 (m, 1H); 3.30 (m, 2H); 3.98 (m, 1H); 4.41 (t, J=4.7, 1H); 5.22 (d, J=4.3, 1H); 6.23 (t, J=5.7, 1H); 7.28 (d, J=8.2, 2H); 7.33 (d, J=8.2, 2H); 7.65 (br, 3H); 8.38 (s, 1H); 8.53 (s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-amino-1,2-benzenediol as starting materials.
- 1H-NMR (DMSO-d6): 1.64 (m, 1H); 2.29 (dd, J=5.8 and 13.6, 1H); 3.13 (m, 1H); 3.93 (dd, J=8.3 and 11.0, 1H); 4.37 (t, J=4.8, 1H); 5.20 (d, J=4.3, 1H); 6.50-6.70 (m, 2H); 6.97 (m, 1H); 7.84 and 8.15 (2s, 1H); 8.35 and 8.43 (2s, 1H); 8.77 and 8.82 (2s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1-acetamido-3-aminobenzene as starting materials.
- 1H-NMR (DMSO-d6): 1.66 (m, 1H); 2.02 (s, 3H); 2.31 (dd, J=5.8 and 13.6, 1H); 3.17 (m, 1H); 3.98 (dd, J=8.3 and 11.0, 1H); 4.40 (t, J=4.8, 1H); 5.27 (d, J=4.3, 1H); 7.05-7.25 (m, 3H); 7.64 (m, 1H); 8.54 (s, 1H); 9.86 (s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-aminobenzene sulfonamide as starting materials.
- 1H-NMR (DMSO-d6): 1.68 (m, 1H); 2.32 (dd, J=5.8 and 13.5, 1H); 3.21 (m, 1H); 4.02 (dd, J=8.5 and 11.2, 1H); 4.43 (t, J=4.7, 1H); 5.28 (d, J=4.2, 1H); 7.31 (br, 2H); 7.38-7.46 (m, 2H); 7.72 and 7.74 (2t, J=1.9, 1H); 8.05 (t, J=1.7, 1H); 8.89 (br, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(dimethylamino)aniline as starting materials.
- +ESI-MS spectrum: m/z: 354 [M+H]+
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-aminobenzoic acid and 2-(dimethylamino)ethylamine as starting materials.
- +ESI-MS spectrum: m/z: 425 [M+H].
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-aminobenzoic acid and glycinamide hydrochloride as starting materials.
- 1H-NMR (DMSO-d6): 1.68 (m, 1H); 2.32 (dd, J=5.8 and 13.5, 1H); 3.21 (m, 1H); 3.78 (d, J=5.7, 2H); 4.02 (dd, J=8.3 and 11.1, 1H); 4.42 (t, J=4.7, 1H); 5.28 (d, J=4.6, 1H); 7.02 (br, 1H); 7.23 (br, 1H); 7.58 (d, J=9.1, 2H); 7.79 (d, J=9.1, 2H); 8.50 (t, J=5.8, 1H); 8.78 (s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-(1,3-oxazol-5-yl)aniline as starting materials.
- 1H-NMR (DMSO-d6): 1.68 (m, 1H); 2.33 (dd, J=5.8 and 13.7, 1H); 3.21 (m, 1H); 4.02 (dd, J=8.1 and 11.0, 1H); 4.42 (t, J=4.7, 1H); 5.27 (d, J=4.3, 1H); 7.30-7.40 (m, 2H); 7.52 (m, 1H); 7.60 (s, 1H); 7.91 (s, 1H); 8.44 (s, 1H); 8.72 (br, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 5(6)-aminobenzoimidazolone as starting materials.
- 1H-NMR (DMSO-d6): 1.65 (m, 1H); 2.30 (dd, J=5.8 and 13.5, 1H); 3.17 (m, 1H); 3.96 (dd, J=8.3 and 11.0, 1H); 4.39 (t, J=4.7, 1H); 5.22 (d, J=4.3, 1H); 6.78 (m, 1H); 6.95 (m, 1H); 7.22 (m, 1H); 8.07 and 8.37 (2s, 1H); 10.34 and 10.39 (2s, 1H); 10.46 and 10.50 (2s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-aminobenzoic acid ethyl ester as starting materials.
- 1H-NMR (DMSO-d6): 1.32 (t, J=7.1, 3H); 1.68 (m, 1H); 2.32 (dd, J=5.8 and 13.5, 1H); 3.20 (m, 1H); 4.02 (dd, J=8.3 and 11.0, 1H); 4.31 (q, J=7.1, 2H); 4.42 (t, J=4.7, 1H); 5.27 (d, J=4.5, 1H); 7.39 (t, J=8.0, 1H); 7.56 (2dd, J=1.2 and 1.6, 1H); 7.82 (m, 1H); 8.14 (t, J=1.9, 1H); 8.81 (br, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-(hydroxymethyl)aniline as starting materials.
- 1H-NMR (DMSO-d6): 1.67 (m, 1H); 2.31 (dd, J=5.8 and 13.5, 1H); 3.18 (m, 1H); 3.99 (dd, J=8.3 and 11.4, 1H); 4.41 (t, J=4.7, 1H); 4.45 (d, J=5.8, 2H); 5.15 (t, J=5.6, 1H); 5.27 (d, J=4.3, 1H); 6.90 (m, 1H); 7.18 (t, J=7.8, 1H); 7.39 (m, 1H); 7.45 (m, 1H); 8.52 (br, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and 2,2-oxydiethylamine dihydrochloride (Eur. J. Org. Chem. 2002, 3004) as starting materials.
- 1H-NMR (DMSO-d6): 1.65 (m, 1H); 2.30 (dd, J=5.8 and 13.5, 1H); 2.99 (m, 2H); 3.16 (m, 1H); 3.29 (m, 2H); 3.49 (t, J=5.7, 2H); 3.60 (t, J=5.2, 2H); 3.95 (m, 1H); 4.39 (t, J=4.7, 1H); 5.20 (d, J=4.3, 1H); 6.13 (t, J=5.7, 1H); 7.24 (d, J=8.2, 2H); 7.31 (d, J=8.2, 2H); 7.73 (br, 3H); 8.35 (s, 1H); 8.37 (s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and 1-BOC-4-amino-piperidine hydrochloride as starting materials.
- 1H-NMR (DMSO-d6): 1.52 (m, 2H); 1.68 (m, 1H); 1.98 (m, 2H); 2.31 (dd, J=6.0 and 13.6, 1H); 3.00 (m, 2H); 3.17 (m, 1H); 3.23 (m, 3H); 3.72 (m, 1H); 3.97 (dd, J=8.3 and 11.0, 1H); 4.40 (t, J=4.8, 1H); 5.21 (d, J=4.2, 1H); 6.28 (d, J=7.5, 1H); 7.23 (d, J=9.2, 2H); 7.32 (d, J=9.2, 2H); 8.12 (s, 1H); 8.28 (br, 1H); 8.38 (s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and 1-BOC-piperazine as starting materials.
- 1H-NMR (DMSO-d6): 1.65 (m, 1H); 2.32 (dd, J=5.7 and 13.6, 1H); 3.13 (m, 4H); 3.19 (m, 1H); 3.62 (m, 4H); 3.97 (dd, J=8.3 and 11.2, 1H); 4.40 (t, J=4.7, 1H); 5.31 (d, J=4.3, 1H); 7.28 (d, J=9.2, 2H); 7.36 (d, J=9.2, 2H); 8.42 (s, 1H); 8.58 (s, 1H); 8.63 (br, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available N—BOC-1,4-phenylene diamine as starting materials.
- +ESI-MS spectrum: m/z: 326 [M+H]+.
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 2-aminobenzamide as starting materials.
- 1H-NMR (DMSO-d6): 1.67 (m, 1H); 2.36 (dd, J=6.0 and 13.8, 1H); 3.23 (m, 1H); 3.97 (m, 1H); 4.42 (t, J=4.7, 1H); 5.24 (d, J=4.2, 1H); 7.00 (m, 1H); 7.45 (m, 1H); 7.72 (br, 1H); 7.79 (dd, J=1.2 and 7.9, 1H); 7.91 (s, 1H); 8.28 (br, 1H); 8.37 (dd, J=1.2 and 8.4, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and N-carbobenzoxyglycine as starting materials.
- 1H-NMR (DMSO-d6): 1.66 (m, 1H); 2.31 (m, 1H); 3.18 (m, 1H); 3.78 (d, J=6.1, 2H); 3.98 (dd, J=8.0 and 11.1, 1H); 4.40 (t, J=4.8, 1H); 5.03 (s, 2H); 5.23 (d, J=4.5, 1H); 7.22-7.58 (m, 10H); 8.49 (s, 1H); 9.83 (s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and N-(2-aminoethyl)morpholine as starting materials.
- 1H-NMR (DMSO-d6): 1.67 (m, 1H); 2.31 (dd, J=6.1 and 13.7, 1H); 3.00-3.25 (m, 5H); 3.40-3.75 (m, 6H); 3.97 (m, 3H); 4.41 (t, J=4.7, 1H); 5.22 (d, J=4.2, 1H); 6.28 (br, 1H); 7.28 (d, J=9.2, 2H); 7.33 (d, J=9.2, 2H); 8.39 (s, 1H); 8.50 (s, 1H); 9.47 (br, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine, N-(2-aminoethyl)morpholine and ethylenediamine as starting materials.
- 1H-NMR (DMSO-d6): 1.66 (m, 1H); 2.31 (dd, J=6.1 and 13.7, 1H); 3.00-3.22 (m, 11H); 3.49 (m, 2H); 3.61 (m, 2H); 3.96 (m, 3H); 4.39 (t, J=4.7, 1H); 5.22 (d, J=4.5, 1H); 6.11 (t, J=5.8, 1H); 6.32 (m, 2H); 7.24 (d, J=9.1, 2H); 7.33 (d, J=9.1, 2H); 8.38 (d, J=4.4, 1H); 9.53 (br, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-aminobenzamide and 2-bromoethanamine as starting materials.
- 1H-NMR (DMSO-d6): 1.69 (m, 1H); 2.33 (dd, J=5.8 and 13.7, 1H); 2.97 (m, 2H); 3.22 (m, 1H); 3.48 (m, 2H); 4.01 (dd, J=8.2 and 11.0, 1H); 4.43 (t, J=4.7, 1H); 5.27 (d, J=4.5, 1H); 7.61 (d, J=9.1, 2H); 7.75 (m, 5H); 8.43 (m, 1H); 8.81 (s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available N—BOC-1,4-benzene diamine as starting materials.
- 1H-NMR (DMSO-d6): 1.46 (s, 9H); 1.64 (m, 1H); 2.30 (dd, J=5.8 and 13.5, 1H); 3.16 (m, 1H); 3.97 (dd, J=8.5 and 11.3, 1H); 4.39 (t, J=4.8, 1H); 5.22 (d, J=4.3, 1H); 7.25-7.35 (m, 4H); 8.41 (s, 1H); 9.17 (s, 1H).
- The titled compound was prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and commercially available 3,4-dihydroxybenzylamine.
- −ESI-MS spectrum: m/z: 356 [M−H]+.
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(morpholinomethyl)aniline as starting materials.
- 1H-NMR (DMSO-d6): 1.67 (m, 1H); 2.30 (dd, J=5.8 and 13.6, 1H); 3.12 (m, 2H); 3.25 (m, 3H); 3.60 (t, J=11.8, 2H); 3.97 (m, 3H); 4.26 (br, 2H); 4.42 (t, J=4.7, 1H); 5.25 (d, J=4.3, 1H); 7.36 (d, J=8.2, 2H); 7.60 (d, J=8.2, 2H); 8.74 (br, 1H); 9.61 (br, 1H).
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-morpholinoaniline as starting materials.
- 1H-NMR (DMSO-d6): 1.67 (m, 1H); 2.32 (dd, J=5.8 and 13.6, 1H); 3.19 (m, 1H); 3.32 (br, 4H); 3.85 (br, 4H); 3.98 (m, 1H); 4.42 (t, J=4.7, 1H); 5.25 (d, J=4.3, 1H); 7.24 (br, 2H); 7.50 (d, J=8.6, 2H); 8.60 (br, 1H).
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-morpholino-4-ylaniline as starting materials.
- 1H-NMR (DMSO-d6): 1.67 (m, 1H); 2.32 (dd, J=5.8 and 13.6, 1H); 3.19 (m, 1H); 3.26 (br, 4H); 3.82 (br, 4H); 3.99 (m, 1H); 4.42 (t, J=4.7, 1H); 5.25 (d, J=4.3, 1H); 6.84 (d, J=7.5, 1H); 7.15 (d, J=8.1, 1H); 7.23 (t, J=8.1, 1H); 7.48 (br, 1H); 8.60 (br, 1H).
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available tert-butyl 4-(3-aminobenzyl)piperazine-1-carboxylate as starting materials. The final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- 1H-NMR (DMSO-d6): 1.67 (m, 1H); 2.32 (dd, J=5.8 and 13.6, 1H); 2.58 (br, 4H); 3.09 (br, 4H); 3.19 (m, 1H); 3.49 (br, 2H); 3.98 (m, 1H); 4.41 (t, J=4.7, 1H); 5.25 (d, J=4.3, 1H); 6.89 (d, J=7.5, 1H); 7.21 (t, J=8.1, 1H); 7.37 (t, J=8.1, 1H); 7.52 (br, 1H); 8.44 (br, 2H); 8.55 (br, 1H).
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and commercially available (S)-3-amino-1-N—BOC-pyrrolidine as starting materials. The final deprotetion step, using trifluoroacetic acid, has been performed in analogy to example 1.
- +ESI-MS spectrum: m/z: 305 [M+H]+.
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 1,4-benzene diamine and also commercially available (S)-3-amino-1-N—BOC-pyrrolidine as starting materials. The final deprotetion step, using trifluoroacetic acid, has been performed in analogy to example 1.
- 1H-NMR (DMSO-d6): 1.65 (m, 1H); 1.82 (m, 1H); 2.17 (m, 1H); 2.31 (dd, J=5.8 and 13.6, 1H); 3.06 (dd, J=5.1 and 11.8, 1H); 3.19 (m, 2H); 3.29 (m, 2H); 3.96 (dd, J=8.3 and 11.1, 1H); 4.22 (m, 1H); 4.40 (t, J=4.7, 1H); 5.22 (d, J=4.3, 1H); 6.40 (d, J=6.0, 1H); 7.26 (d, J=9.2, 2H); 7.33 (d, J=9.2, 2H); 8.37 (s, 1H); 8.41 (s, 1H); 8.70 (br, 2H).
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(2-morpholin-4-ylethoxy)aniline as starting materials.
- 1H-NMR (DMSO-d6): 1.66 (m, 1H); 2.31 (dd, J=5.8 and 13.6, 1H); 3.18 (m, 3H); 3.54 (m, 4H); 3.70 (m, 2H); 3.96 (m, 3H); 4.29 (m, 2H); 4.41 (t, J=4.7, 1H); 5.21 (d, J=4.3, 1H); 6.93 (d, J=9.0, 2H); 7.41 (d, J=9.0, 2H); 8.44 (s, 1H); 9.81 (br, 1H).
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 3-(2-morpholin-4-ylethoxy)aniline as starting materials.
- 1H-NMR (DMSO-d6): 1.66 (m, 1H); 2.31 (dd, J=5.8 and 13.6, 1H); 3.18 (m, 3H); 3.54 (m, 4H); 3.70 (m, 2H); 3.98 (m, 3H); 4.29 (m, 0.2H); 4.41 (t, J=4.7, 1H); 5.23 (d, J=4.3, 1H); 6.61 (dd, J=1.9 and 8.1, 1H); 7.04 (dd, J=1.1 and 8.1, 1H); 7.19 (t, J=8.1, 1H); 7.38 (s, 1H); 8.57 (s, 1H); 9.81 (br, 1H).
- The titled compound has been prepared following scheme and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(1-piperidino)aniline as starting materials.
- 1H-NMR (DMSO-d6): 1.40-2.00 (m, 7H); 2.30 (dd, J=5.8 and 13.5, 1H); 3.22 (m, 1H); 3.45 (br, 4H); 3.98 (dd, J=8.3 and 11.0, 1H); 4.42 (t, J=4.7, 1H); 5.24 (d, J=4.3, 1H); 7.50-7.75 (m, 4H); 8.85 (br, 1H); 10.80 (s, 1H).
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 6-morpholinopyridine-3-amine as starting materials.
- 1H-NMR (DMSO-d6): 1.70 (m, 1H); 2.34 (dd, J=5.8 and 13.5, 1H); 3.22 (m, 1H); 3.54 (m, 4H); 3.76 (m, 4H); 3.98 (dd, J=8.3 and 11.0, 1H); 4.42 (t, J=4.7, 1H); 5.19 (d, J=4.4, 1H); 7.38 (d, J=9.7, 1H); 8.06 (dd, J=2.4 and 9.7, 1H); 8.29 (d, J=2.4, 1H); 8.88 (br, 1H).
- The titled compound has been prepared following scheme 12 and in analogy to example 43 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and the commercially available 4-(4-methylpiperazino)aniline as starting materials.
- 1H-NMR (DMSO-d6): 1.65 (m, 1H); 2.31 (dd, J=5.8 and 13.6, 1H); 2.69 (m, 2H); 2.99 (m, 2H); 3.05-3.25 (m, 8H); 3.96 (dd, J=8.3 and 11.0, 1H); 4.39 (t, J=4.7, 1H); 5.31 (d, J=4.3, 1H); 6.91 (d, J=9.0, 2H); 7.35 (d, J=9.0, 2H); 8.36 (s, 1H).
- The titled compound was prepared following scheme 12 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and 2-[1-(dimethylamino)-2-oxohydropyrimidin-4-ylthio]acetic acid. The resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- +ESI-MS spectrum: m/z: 404 [M+H]+.
- 2-[1-(dimethylamino)-2-oxohydropyrimidin-4-ylthio]acetic acid was prepared from the 3-(dimethylamino)-6-sulfanyl-3-hydropyrimidin-2-one (U.S. Pat. No. 4,348,518) and bromoacetic acid according to the procedures described in Russian J. Org. Chem. 2000, 761.
- The titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and the 2-[4-(2-pyridylacetylamino)phenylthio]acetic acid as starting materials. The resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- +ESI-MS spectrum: m/z: 397 [M+H—SO3]+.
- The titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and 2-{1-[2-(dimethylamino)ethyl]-1,2,3,4-tetraazol-5-ylthio}acetic acid as starting materials. The resulting compound was then′sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- 2-{1-[2-(dimethylamino)ethyl]-1,2,3,4-tetraazol-5-ylthio}acetic acid was prepared from commercially available 1-(2-dimethylaminoethyl)-5-mercapto-1,2,3,4-tetrazole and bromo acetic acid according to the procedures described in Russian J. Org. Chem. 2000, 761
- +ESI-MS spectrum: m/z: 406 [M+H]+.
- The titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and the commercially available 2-(5-methyl-1,3,4-thiadiazol-2-ylthio)acetic acid as starting materials. The resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- −ESI-MS spectrum: m/z: 363 [M−H]+.
- To a suspension of commercially available 4-mercapto benzoic acid (1.54 g, 10 mmol) in water was added NaOH (0.88 g, 22 mmol). The resulting solution was stirred at room temperature for 30 min and then bromo acetic acid ethyl ester (1.67 g, 10 mmol) was slowly added to the previous solution. After stirring at room temperature for 2 hours, an aqueous solution containing HCl (1M) was added. The obtained precipitate was filtrated, washed with water and dried to afford 1.5 g of 4-ethoxycarbonylmethylthio benzoic acid.
- −ESI-MS spectrum: m/z: 239 [M−H]+.
- Then the corresponding acid chloride of 4-ethoxycarbonylmethylthio benzoic acid was prepared in analogy to the procedure described in Synthesis, 1985, 517 and the condensation of the commercially available 2-dimethylaminoethyl amine and the hydrolysis of the ester group were performed in analogy to the procedure described in Bioorg. Med. Chem. Lett. 2003, 1517.
- +ESI-MS spectrum: m/z: 283 [M+H]+.
- [5-(2-Dimethylamino-ethylcarbamoyl)phenylthio]acetic acid (144 mg, 0.49 mmol, 1.0 eq) was added at room temperature to a stirred solution of (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H, 100 mg, 0.49 mmol, 1.0 eq) in DMSO (4 mL), followed by O-(benzotriazo-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU) (225 mg, 0.59 mmol, 1.2 eq) and triethylamine (83 μL, 0.59 mmol, 1.2 eq). After 4 hours stirring at room temperature, DMSO was evaporated, the crude was treated with acetonitrile. The resulting mixture was filtered to afford the crude product as a yellow solid which was purified by preparative HPLC: 74 mg (30%).
- 1H-NMR (DMSO-d6): 1.70 (m, 1H); 2.32 (m, 1H); 2.83 (s, 6H); 3.14 and 3.38 (2m, 1H); 3.26 (m, 2H); 3.57 (m, 2H); 3.96-4.23 (m, 3H); 4.34 and 4.51 (2t, J=4.7, 1H); 5.16 and 5.31 (2d, J=4.3, 1H); 7.43 (dd, J=8.5 and 12.6, 2H); 7.78 (dd, J=2.4 and 8.5, 2H); 8.62 (m, 1H); 9.18 (br, 1H).
- The titled compound has been prepared following scheme and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and [5-(2-dimethylaminoethylcarbamoyl)pyridin-2-ylthio]acetic acid as starting materials.
- 1H-NMR (DMSO-d6): 1.66 (m, 1H); 2.33 (m, 1H); 2.82 (s, 3H); 2.85 (s, 3H); 3.15 and 3.48 (2m, 1H); 3.26 (m, 2H); 3.61 (m, 2H); 3.98-4.55 (m, 4H); 5.16 and 5.35 (2t, J=4.3, 1H); 7.48 (d, J=8.4; 1H); 8.02 (m, 1H); 8.75 (m, 1H); 8.85 (dd, J=1.8 and 7.5, 1H); 9.16 (br, 1H).
- [5-(2-Dimethylamino-ethylcarbamoyl)pyridin-2-ylthio]acetic acid was prepared in analogy to the procedure described in Bioorg. Med. Chem. Lett. 2003, 1517 using bromo acetic acid ethyl ester and commercially available 2-dimethylaminoethyl amine.
- The titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and [4-(2-tert-butoxycarbonylaminoethylcarbamoyl)phenylthio]acetic acid as starting materials. The final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- 1H-NMR (DMSO-d6): 1.72 (m, 1H); 2.33 (m, 1H); 2.97 (t, J=6.0, 2H); 3.14 and 3.38 (2m, 1H); 3.48 (q, J=6.0, 2H); 3.95-4.24 (m, 3H); 4.34 and 4.51 (2t, J=4.8, 1H); 5.17 and 5.32 (2d, J=4.3, 1H); 7.42 (dd, J=8.5 and 13.1, 2H); 7.78 (dd, J=2.5 and 8.5, 2H); 8.55 (m, 1H).
- [4-(2-Tert-butoxycarbonylaminoethylcarbamoyl)phenylthio]acetic acid was prepared in analogy to the procedure described in example 80 using 4-ethoxycarbonylmethylthiobenzoic acid and commercially available (2-aminoethyl)carbamic acid tert-butyl ester.
- The titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and {4-[(2-tert-butoxycarbonylaminoethyl)methylcarbamoyl]phenylthio}acetic acid as starting materials. The final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- −ESI-MS spectrum: m/z: 441 [M−H]+
- {4-[(2-Tert-butoxycarbonylaminoethyl)methylcarbamoyl]phenylthio}acetic acid was prepared in analogy to the procedure described in example 80 using 4-ethoxycarbonylmethylsulfanylbenzoic acid and commercially available (2-methylamino-ethyl)carbamic acid tert-butyl ester.
- The titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and {4-[2-(tert-butoxycarbonylmethylamino)ethylcarbamoyl]phenylthio}acetic acid as starting materials. The final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- −ESI-MS spectrum: m/z: 441 [M−H]+
- {4-[2-(Tert-butoxycarbonylmethylamino)ethylcarbamoyl]phenylthio}acetic acid was prepared in analogy to the procedure described in example 80 using 4-ethoxycarbonyl methylthiobenzoic acid and commercially available (2-aminoethyl)methylcarbamic acid tert-butyl ester.
- The titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and 4-(4-carboxymethylthiobenzoyl)piperazine-1-carboxylic acid tert-butyl ester as starting materials. The final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- −ESI-MS spectrum: m/z: 453 [M−H]+
- 4-(4-Carboxymethylsulfanyl-benzoyl)piperazine-1-carboxylic acid tert-butyl ester was prepared in analogy to the procedure described in example 80 using 4-ethoxycarbonylmethylthiobenzoic acid and commercially available piperazine-1-carboxylic acid tert-butyl ester.
- The titled compound has been prepared following scheme and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and [4-(2-tert-butoxycarbonylaminoethoxy)phenylthio]acetic acid as starting materials. The final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- −ESI-MS spectrum: m/z: 400 [M−H]+
- [4-(2-Tert-butoxycarbonylaminoethoxy)phenylthio]acetic acid was prepared in analogy to the procedure described in J. Med Chem. 2000, 721 using first bromo acetic ethyl ester and then the commercially available (2-bromoethyl)carbamic acid tert-butyl ester.
- The titled compound has been prepared following scheme and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and [4-(2-tert-butoxycarbonylaminoethylcarbamoyl)phenylthio]acetic acid as starting materials. The final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- −ESI-MS spectrum: m/z: 428 [M−H]+
- [4-(2-Tert-butoxycarbonylamino-ethylcarbamoyl)phenylthio]acetic acid was prepared in analogy to the procedure described in Bioorg. Med. Chem. Lett. 2003, 1517 using bromo acetic acid ethyl ester and commercially available (2-aminoethyl)carbamic acid tert-butyl ester.
- The titled compound has been prepared following scheme 13 and in analogy to example 80 using (1S,5R)-7-oxo-2,6-diazabicyclo[3.2.0]heptane-6-sulfonic acid (compound H) and {4-[2-(tert-butoxycarbonylmethylamino)ethylcarbamoyl]phenylthio}acetic acid as starting materials. The final deprotection step, using trifluoroacetic acid, has been performed in analogy to example 1.
- −ESI-MS spectrum: m/z: 442 [M−H]+
- {4-[2-(Tert-butoxycarbonylmethylamino)ethylcarbamoyl]phenylthio}acetic acid was prepared in analogy to the procedure described in Bioorg. Med. Chem. Lett. 2003, 1517 using bromo acetic acid ethyl ester and commercially available (2-methylaminoethyl)carbamic acid tert-butyl ester.
- The titled compound was prepared following scheme 11 in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) which was first sulfonated (J. Org. Chem. 1982, 5160) and the commercially available 3,4-pyridine dicarboxamide as starting materials.
- +ESI-MS spectrum: m/z: 398 [M+H]+.
- The titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and the (4S) 4,5-dihydro-2-(2-hydroxyphenyl)-4-thiazolecarboxylic acid (JP59141554). The resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- −ESI-MS spectrum: m/z: 397 [M+H]+.
- The titled compound was prepared following scheme 11 in analogy to example 22 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) and the commercially available 4-amino-5-fluoro pyridine-2-one.
- −ESI-MS spectrum: m/z: 361 [M+H]+.
- The titled compound was prepared following scheme 13 in analogy to example 14 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and 2-amino-2-(4carbamoylphenyl)acetic acid, obtained according to the procedure described in Eur. J. Med. Chem. 2003, 289 from 4-{[(tert-butoxy)carbonylamino](methoxycarbonyl)methyl}benzoic acid (WO-A-2000/076970). The resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- +ESI-MS spectrum: m/z: 368 [M+H]+.
- The titled compound was prepared following scheme 13 in analogy to example 24 using (5S,1R)-4-(2-bromoacetyl)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound F) and 1-(1H-imidazol-1-ylcarbonyl)-4-methyl-piperazine (Ind. J. Chem., Section B, 1987, 748).
- +ESI-MS spectrum: m/z: 426 [M]+.
- The titled compound was prepared following the procedure described for example 18 of U.S. Pat. No. 6,566,355 using (5S,1R)-4,7-diazabicyclo[3.2.0]heptan-6-one (compound E) and 4-[(3-phenyl-1,2-oxaziridin-2-yl)carbonylamino]benzamide. The resulting compound was then sulfonated according to the procedure described in J. Org. Chem. 1982, 5160.
- −ESI-MS spectrum: m/z: 369 [M+H]+.
- Antimicrobial activity of the compounds and of their combinations was determined against a selection of organisms according to the standard procedures described by the National Committee for Clinical Laboratory Standards (National Committee for Clinical Laboratory. Standards (2000). Methods for Dilution Antimicrobial Susceptibility Tests for Bacteria That Grow Aerobically-Fifth Edition: Approved Standard M7-A5. NCCLS, Wayne, Pa., USA).
- The compounds to be tested were dissolved in 100% DMSO or sterile broth according to their aqueous solubility and were diluted to the final reaction concentration (0.06-32 μg/mL) in microbial growth media (IsoSensiTest Broth+16 μg/mL 2,2′-bipyridyl). In all cases the final concentration of DMSO incubated with the bacteria is less than or equal to 1%. For estimation of the minimal inhibitory concentrations (MIC), 2-fold dilutions of compounds were added to wells of a microtitre plate containing 106 bacteria/mL. Plates were incubated overnight at an appropriate temperature (30° C. or 37° C.) and optical densities assessed by eye. The MIC value is defined as the lowest compound concentration completely inhibiting visible growth of the test organism. When combinations between compounds of formula I with compounds of formula II and are evaluated the compounds of formula I are tested in dilution series as described above while the compounds of formula II and III-XIII were present in all wells at a constant concentration of 4 μg/mL each.
- The MIC values (in mg/L) of representative compounds and of representative combinations including these compounds are listed in tables 3, 4 and 5. Table 3 lists the MIC values obtained for two representative antibiotics of formula I when combined either with a compound of formula II or with a compound of formula III-XIII in comparison to the activity obtained with a combination involving the antibiotic of formula I with a compound of formula II and a compound of formula III-XIII together. Table 4 lists the activity of representative compounds of formula I alone or in combination with compounds of formula II and formula III-XIII. Table 5 lists the MIC values obtained for representative compounds of formula II with selected compounds of formula I and formula III-XIII.
- If in table 4 in the upper three rows a cell is left empty, then this means that in the combination of that column no compound of the category of that row was used.
-
TABLE 3 Activity of representative monobactam antibiotics alone and in representative combinations according to the invention compound of formula I 1 Aztreonam compound of formula 206 323 206 323 II Supplementary b- clavulanate 501 clavulanate clavulanate 501 sulbactam lactamase inhibitor Strain Minimal Inhibitory Concentration (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Enterobacter B1102 >32 32 16 16 8 2 16 2 0.125 2 cloacae ATCC13047/ >32 >32 >32 >32 8 >32 >32 >32 8 8 CRO-R M4018 32 >32 16 8 2 >32 >32 32 1 4 MRW >32 32 32 16 4 >32 32 32 1 2 Enterobacter Zayakosky >32 >32 >32 >32 16 >32 >32 >32 16 8 aerogenes B1 32 >32 >32 16 4 16 >32 32 8 8 -
TABLE 4 Activity of combinations of representative antibiotics Antibiotic Meropenem Cefepime Amoxicillin Ampicillin Aztreonam Aztreonam Aztreonam 1 1 β-lactamase inhibitor of 102 102 formula II β-lactamase inhibitor of clavulanate sulbactam clavulanate sulbactam 501 formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter baumannii 2 32 >32 32 >32 16 4 >32 <0.06 J2 Pseudomonas aeruginosa 2 32 >32 >32 >32 32 16 >32 >32 MK1184 Pseudomonas aeruginosa 1 4 >32 >32 8 8 4 16 8 1973E Enterobacter cloacae 0.13 2 >32 >32 >32 2 2 >32 16 P99 Klebsiella pneumoniae <0.06 4 32 >32 >32 0.5 1 >32 0.5 CF104 Serratia marcescens S6 16 0.13 >32 >32 32 2 2 >32 4 Stenotrophomonas 32 4 >32 32 >32 4 8 1 0.25 maltophilia 1AC736 Antibiotic 1 1 1 1 1 1 1 1 β-lactamase inhibitor of 102 102 103 111 202 206 323 formula II β-lactamase inhibitor of clavulanate clavulanate sulbactam clavulanate clavulanate clavulanate clavulanate sulbactam formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter baumannii >32 4 2 8 4 4 4 1 J2 Pseudomonas aeruginosa >32 4 32 8 8 8 >32 4 MK1184 Pseudomonas aeruginosa 8 2 4 4 4 4 4 4 1973E Enterobacter cloacae 32 4 8 32 4 16 8 4 P99 Klebsiella pneumoniae 0.5 1 1 0.5 <0.06 2 0.25 1 CF104 Serratia marcescens S6 4 0.25 0.5 0.25 0.25 0.5 4 0.5 Stenotrophomonas 0.5 0.125 2 0.125 0.125 0.125 0.125 0.125 maltophilia 1AC736 Antibiotic 1 1 2 2 20 20 20 20 20 β-lactamase inhibitor of 323 324 206 102 206 formula II β-lactamase inhibitor of clavulanate clavulanate clavulanate 501 clavulanate clavulanate clavulanate formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter baumannii 16 32 4 16 >32 <0.06 >32 >32 >32 J2 Pseudomonas aeruginosa 16 8 8 16 >32 >32 >32 8 >32 MK1184 Pseudomonas aeruginosa 8 8 8 8 16 16 16 32 16 1973E Enterobacter cloacae 4 4 >32 16 >32 >32 >32 16 16 P99 Klebsiella pneumoniae 2 1 >32 8 >32 16 32 2 4 CF104 Serratia marcescens S6 0.25 1 >32 >32 4 2 2 0.5 0.5 Stenotrophomonas 0.125 0.125 4 0.5 4 0.25 0.25 0.25 0.5 maltophilia 1AC736 Antibiotic of formula I 5 5 6 6 6 6 16 16 28 28 β-lactamase inhibitor 102 102 315 206 102 102 of formula II β-lactamase inhibitor clavulanate clavulanate clavulanate clavulanate clavulanate clavulanate of formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter >32 32 >32 >32 >32 32 >32 16 >32 >32 baumannii J2 Pseudomonas >32 >32 >32 >32 >32 >32 >32 16 >32 32 aeruginosa MK1184 Pseudomonas >32 >32 >32 >32 >32 >32 >32 16 >32 16 aeruinosa 1973E Enterobacter 32 8 16 8 4 16 >32 >32 >32 >32 cloacae P99 Klebsiella pneumoniae >32 8 >32 <0.06 0.5 0.5 >32 32 >32 0.5 CF104 Serratia marcescens 8 1 4 0.5 4 4 >32 >32 8 1 S6 Stenotrophomonas 16 4 8 4 2 4 >32 2 8 1 maltophilia 1AC736 Antibiotic of formula I 21 21 21 21 21 21 12 12 12 β-lactamase inhibitor 102 102 323 323 324 102 102 of formula II β-lactamase inhibitor sulbactam clavulanate sulbactam clavulanate sulbactam sulbactam clavulanate of formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter >32 2 >32 2 8 2 >32 4 >32 baumannii J2 Pseudomonas >32 32 16 8 32 32 >32 4 16 aeruginosa MK1184 Pseudomonas 8 16 8 32 16 16 4 8 4 aeruinosa 1973E Enterobacter >32 32 32 8 8 8 >32 8 16 cloacae P99 Klebsiella pneumoniae >32 2 <0.06 1 2 4 >32 2 0.25 CF104 Serratia marcescens 8 16 0.5 2 2 4 32 1 2 S6 Stenotrophomonas 8 8 2 4 2 4 1 4 0.125 maltophilia 1AC736 Antibiotic of formula I 12 12 12 9 9 29 29 29 29 β-lactamase inhibitor 103 323 324 102 102 102 323 of formula II β-lactamase inhibitor sulbactam sulbactam sulbactam clavulanate clavulanate sulbactam sulbactam of formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter 1 2 2 >32 >32 >32 >32 2 2 baumannii J2 Pseudomonas 16 16 >32 4 >32 8 4 8 aeruginosa MK1184 Pseudomonas 16 4 16 8 8 4 8 8 8 aeruinosa 1973E Enterobacter 32 8 8 >32 32 >32 0.25 8 8 cloacae P99 Klebsiella pneumoniae 4 4 4 >32 0.5 >32 0.5 2 2 CF104 Serratia marcescens 16 4 16 16 1 32 1 8 8 S6 Stenotrophomonas 2 0.5 4 0.5 0.25 1 0.5 1 1 maltophilia 1AC736 Antibiotic of 22 22 22 22 23 23 23 23 26 formula I β-lactamase 102 324 324 102 324 324 inhibitor of formula II β-lactamase Clavulanate Clavulanate Sulbactam Clavulanate Clavulanate Sulbactam inhibitor of formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter >32 4 8 2 16 8 8 2 4 baumannii J2 Pseudomonas 8 4 4 4 8 8 8 8 2 aeruginosa MK1184 Pseudomonas 4 4 4 4 8 8 16 16 16 aeruginosa 1973E Enterobacter >32 8 4 4 >32 8 4 8 16 cloacae P99 Klebsiella pneumoniae >32 0.25 0.25 4 >32 1 1 2 32 CF104 Serratia marcescens 0.13 0.25 0.13 0.13 0.25 0.25 0.25 0.5 <0.06 S6 Stenotrophomonas 0.5 1 1 1 1 not tested <0.06 maltophila 1AC736 Acinetobacter not tested 4 baumannii J51 Enterobacter not tested 16 aerogenes Zayakosky 5 Antibiotic of 26 26 26 26 26 formula I β-lactamase 102 102 324 324 102 inhibitor of formula II β-lactamase Clavulanate Sulbactam Clavulanate Sulbactam inhibitor of formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter 4 2 4 2 4 baumannii J2 Pseudomonas 2 2 2 2 2 aeruginosa MK1184 Pseudomonas 2 4 2 2 2 aeruginosa 1973E Enterobacter 2 2 1 2 1 cloacae P99 Klebsiella pneumoniae 0.25 1 0.25 1 16 CF104 Serratia marcescens ≦0.06 <0.06 <0.06 <0.06 ≦0.06 S6 Stenotrophomonas 0.25 0.25 0.25 0.25 0.25 maltophila 1AC736 Acinetobacter 4 not 2 not 2 baumannii J51 tested tested Enterobacter 4 not 4 not 8 aerogenes tested tested Zayakosky 5 Antibiotic of 26 26 26 26 26 26 formula I β-lactamase 324 inhibitor of formula II β-lactamase clavulanic 501 sulbactam tazobactam BRL427158 inhibitor of acid formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter 4 >32 0.5 2 4 0.5 baumannii J2 Pseudomonas 4 4 2 4 4 2 aeruginosa MK1184 Pseudomonas 4 2 2 2 2 2 aeruginosa 1973E Enterobacter 2 8 2 8 16 2 cloacae P99 Klebsiella pneumoniae 16 0.5 1 1 1 0.125 CF104 Serratia marcescens ≦0.06 ≦0.06 ≦0.06 ≦0.06 ≦0.06 ≦0.06 S6 Stenotrophomonas 0.25 ≦0.06 0.125 ≦0.06 ≦0.06 0.125 maltophila 1AC736 Acinetobacter 2 1 1 2 4 32 baumannii J51 Enterobacter 4 8 16 16 16 0.5 aerogenes Zayakosky 5 Antibiotic of 41 41 41 48 48 48 25 25 25 47 47 formula I β-lactamase 102 324 102 324 102 324 102 inhibitor of formula II β-lactamase clavulanic clavulanic clavulanic clavulanic clavulanic clavulanic clavulanic inhibitor of acid acid acid acid acid acid acid formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter 16 16 4 >32 >32 >32 >32 16 >32 >32 >32 baumannii J2 Pseudomonas 4 4 4 4 2 2 >32 4 8 4 2 aeruginosa MK1184 Pseudomonas 4 4 8 8 4 8 16 4 8 8 4 aeruginosa 1973E Enterobacter >32 16 16 >32 32 16 >32 8 4 >32 16 cloacae P99 Klebsiella pneumoniae >32 0.5 0.5 >32 2 4 >32 0.5 0.5 >32 4 CF104 Serratia marcescens 1 0.5 0.5 8 2 2 1 1 1 2 2 S6 Stenotrophomonas 1 2 1 4 4 2 4 1 1 1 1 maltophila 1AC736 Antibiotic of 47 32 32 32 33 33 33 formula I β-lactamase 324 102 324 102 324 inhibitor of formula II β-lactamase clavulanic clavulanic clavulanic clavulanic clavulanic inhibitor of acid acid acid acid acid formula V or VI Bacterial strain MIC (mg/L) of antibiotic at fixed inhibitor concentration of 4 mg/L Acinetobacter >32 >32 4 8 >32 16 8 baumannii J2 Pseudomonas 4 4 4 4 32 16 32 aeruginosa MK1184 Pseudomonas 8 16 8 8 32 16 16 aeruginosa 1973E Enterobacter 32 32 8 4 32 4 16 cloacae P99 Klebsiella pneumoniae 2 >32 1 2 2 0.5 0.5 CF104 Serratia marcescens 2 0.5 0.25 0.25 0.5 0.25 0.25 S6 Stenotrophomonas 1 0.5 0.5 0.5 2 2 2 maltophila 1AC736 -
TABLE 5 Activity of compounds of general formula II in representative combinations Supplementary MIC of antibiotic at fixed inhibitor concentration Bridged β-lactamase (4 mg/L) Mono- inhibitor Acine- Pseudomonas Pseudomonas Enterobacter Klebsiella Serratia Stenotrophomonas bactam of of formula Antibiotic tobacter aeruginosa aeruginosa cloacae pneumoniae marcescens malthophilia formula II V or VI of formula I sp. J2 MK1184 1973E P99 CF104 S6 1AC736 Meropenem 2 2 1 0.125 <0.06 16 32 Cefepime 32 32 4 2 4 0.125 4 Aztreonam >32 >32 8 >32 >32 32 >32 1 >32 >32 16 >32 >32 1 0.5 101 clavulanate 1 >32 8 4 32 2 0.5 0.125 102 clavulanate 1 4 4 2 4 1 0.25 0.125 103 clavulanate 1 8 8 4 32 0.5 0.25 0.125 104 clavulanate 1 >32 32 4 32 0.5 2 0.125 105 clavulanate 1 8 16 8 32 0.5 0.125 0.125 106 clavulanate 1 >32 32 4 >32 0.25 0.25 0.125 107 clavulanate 1 8 8 4 32 1 0.125 0.125 108 clavulanate 1 >32 >32 4 4 1 0.25 0.125 109 clavulanate 1 4 16 4 32 0.5 0.125 0.125 110 clavulanate 1 2 32 4 >32 0.125 0.25 0.125 111 clavulanate 1 4 8 4 4 <0.06 0.25 0.125 112 clavulanate 1 16 >32 8 >32 <=0.06 0.5 0.125 113 clavulanate 1 >32 >32 4 32 0.125 0.25 0.25 114 clavulanate 1 >32 16 4 32 0.125 0.25 0.125 115 clavulanate 1 >32 16 4 32 0.125 0.25 0.125 116 clavulanate 1 16 8 16 32 0.5 0.25 0.125 117 clavulanate 1 >32 16 4 32 0.125 0.25 0.25 118 clavulanate 1 >32 32 4 32 0.125 0.25 0.125 119 clavulanate 1 >32 32 4 >32 0.125 0.25 0.125 120 clavulanate 1 32 16 8 32 0.25 0.25 0.125 121 clavulanate 1 >32 16 4 32 0.25 0.25 0.25 122 clavulanate 1 >32 16 4 16 0.125 0.25 0.125 123 clavulanate 1 >32 32 4 32 0.125 0.25 0.125 124 clavulanate 1 >32 32 8 32 0.125 0.25 0.125 125 clavulanate 1 4 16 8 32 <0.06 0.5 0.125 126 clavulanate 1 2 16 8 32 >32 0.125 0.125 201 clavulanate 1 4 32 8 32 >32 2 0.125 202 clavulanate 1 4 8 4 16 2 0.5 0.125 203 clavulanate 1 2 32 4 32 1 0.25 8 204 clavulanate 1 2 32 4 8 2 0.25 8 205 clavulanate 1 2 16 4 16 0.5 0.5 2 206 clavulanate 1 4 >32 4 8 0.25 4 0.125 301 clavulanate 1 8 >32 4 16 1 0.25 0.125 302 clavulanate 1 >32 >32 4 32 2 0.25 0.125 303 clavulanate 1 >32 >32 4 32 2 0.5 0.125 304 clavulanate 1 >32 >32 4 32 1 0.25 0.125 305 clavulanate 1 >32 >32 4 4 4 0.25 0.25 306 clavulanate 1 >32 >32 4 32 2 0.5 0.25 307 clavulanate 1 >32 >32 8 32 2 0.25 0.125 308 clavulanate 1 >32 >32 4 16 0.5 0.5 0.125 309 clavulanate 1 >32 >32 4 32 2 0.5 0.125 310 clavulanate 1 >32 16 4 4 2 0.5 0.125 311 clavulanate 1 4 >32 4 8 0.5 0.25 0.125 312 clavulanate 1 >32 >32 8 8 4 0.5 0.125 313 clavulanate 1 4 >32 4 16 0.5 0.25 0.125 314 clavulanate 1 4 >32 4 32 1 0.25 0.125 315 clavulanate 1 4 >32 4 8 1 0.25 0.125 316 clavulanate 1 16 32 4 8 0.5 0.25 0.125 317 clavulanate 1 16 >32 8 8 0.5 0.25 0.125 318 clavulanate 1 16 >32 4 >32 0.5 0.25 0.125 319 clavulanate 1 >32 >32 4 16 0.25 0.25 0.125 320 clavulanate 1 >32 >32 8 8 0.5 0.25 0.125 321 clavulanate 1 16 >32 4 >32 1 0.25 0.125 322 clavulanate 1 16 >32 8 >32 0.125 1 0.125 323 clavulanate 1 16 16 8 4 2 0.25 0.125 324 clavulanate 1 32 8 8 4 1 1 0.125 325 clavulanate 1 4 16 4 4 >32 0.25 0.125 326 clavulanate 1 4 32 4 8 >32 0.125 0.125 327 clavulanate 1 2 >32 2 32 2 0.25 0.125 328 clavulanate 1 8 32 4 4 1 1 0.125 331 clavulanate 1 >32 >32 4 4 0.5 2 0.125 332 clavulanate 1 >32 16 4 16 1 2 0.125 333 clavulanate 1 >32 32 4 32 1 0.25 0.125 401 clavulanate 1 4 >32 8 16 0.5 0.125 0.125 402 clavulanate 1 8 32 4 32 <0.06 0.25 <0.06 403 clavulanate 1 8 >32 2 32 4 0.5 0.125 404 clavulanate 1 4 >32 4 16 0.5 0.25 0.25 406 clavulanate 1 >32 32 8 32 2 0.5 0.125 407 clavulanate 1 >32 >32 8 32 1 0.5 0.125 408 clavulanate 1 >32 >32 16 32 2 0.5 0.125 - Further objects of the invention according to the following paragraphs 1-2 are also disclosed herein:
- 1. A pharmaceutical composition, comprising a combination of
a) an antibiotically active compound of the following formula I: - in which
R1 signifies SO3H, OSO3H, CRaRa′COOH, OCRaRa′COOH, 5-tetrazolyl, SO2NHRb or CONHRc, -
- wherein Ra and Ra′ are independently selected from hydrogen; alkyl; allyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; alkylamino; dialkylamino; alkoxyalkyl and a 5-6 membered heteroaromatic ring which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; wherein Rb is hydrogen; alkyl; alkoxycarbonyl; alkylaminocarbonyl; benzylaminocarbonyl in which the benzyl may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or phenylaminocarbonyl in which the phenyl may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen;
- wherein Rc is hydrogen; alkyl; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; alkoxycarbonyl; SO2phenyl; SO2NHalkyl; or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen;
R2 and R3 independently signify hydrogen; alkyl; alkenyl; alkynyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; azido; halogen; dihalogenomethyl; trihalogenomethyl; alkoxycarbonyl; carboxyl; sulfonyl or CH2X1, - wherein X1 is azido; amino; halogen; hydroxyl; cyano; carboxyl; aminosulfonyl; alkoxycarbonyl; alkanoylamino; phenylaminocarbonyl; alkylaminocarbonyl; aminocarbonyl; carbamoyloxy; alkylaminosulfonyl; phenylaminosulfonyl in which the phenyl may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen;
R4 signifies hydrogen; alkyl; C(Rx)(Ry)Z, - wherein Rx and Ry are independently selected from hydrogen; alkyl; allyl; (C3-C6)cycloalkyl; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; (C2-C7) alkene and (C2-C7) alkyne; or Rx and Ry taken together may form an alkylene bridge —(CH2)n— with n being an integer number from 2 to 6; and
- Z is COOH; CH2N(OH)COR′ wherein
- R′ is hydrogen, alkyl, alkylamino, alkoxy, benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen, phenyl which may be substituted′ with 1 to 5 substituents selected from from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen, or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen;
- or Z is one of the following six groups
-
- in which groups
- Rd, Re and Rf are independently selected from hydrogen; alkyl; amino; monoalkylamino; carboxylaminoalkyl; alkoxycarbonyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; diphenylmethyl; trityl; and ORg wherein
- Rg is hydrogen; alkyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino and halogen; or phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino and halogen;
- or, when Re and Rf are vicinal substituents, Re and Rf taken together may also be —O—CH═CH—CH2—, —O—CH2—CH2—O—, —CH2—CH2—CH2—, —CH2—CH2—CH2—CH2—, —CH═CH—CH═CH— or —CH═C(OH)—C(OH)═CH—;
- Ri is hydrogen; alkyl; alkylamino; alkoxy; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; phenyl which may be substituted with 1 to 5 substituents selected from alkyl and hydroxyl; or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxyalkoxy, amino, alkylamino, dialkylamino and halogen;
R5 signifies hydrogen, alkyl, halogenomethyl, dihalogenomethyl, trihalogenomethyl, alkoxy, formylamino or alkylcarbonylamino;
R6 signifies phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxyalkoxy, amino, alkylamino, dialkylamino and halogen; or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 4 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, carbonylamino and halogen; or a pharmaceutically acceptable salt thereof;
with a β-lactamase inhibitor of one of the following groups b1) to b11):
b1) a bridged monobactam derivative of the following formula II:
- Rd, Re and Rf are independently selected from hydrogen; alkyl; amino; monoalkylamino; carboxylaminoalkyl; alkoxycarbonyl; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; diphenylmethyl; trityl; and ORg wherein
- in which groups
- in which:
R7 signifies SO3H, OSO3H or OCRjRj′COOH, -
- wherein Rj and Rj′ are independently selected from hydrogen; alkyl; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxyalkoxy, amino, alkylamino, dialkylamino and halogen; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxyalkoxy, amino, alkylamino, dialkylamino and halogen; alkylamino and alkoxyalkyl;
R8 is alkoxycarbonylamino, the acyl residue of an α or β-amino acid, or a residue of the formula Q-(X)r—Y—, - wherein Q is a 3-6 membered ring which optionally contains nitrogen, sulphur and/or oxygen and which is optionally fused to a phenyl ring or to a 5-6 membered heterocyclic ring and which is optionally substituted with 1 to 4 substituents selected from alkyl, allyl, hydroxyl, alkoxyalkoxy, amino, alkylamino, dialkylamino, carboxamide which may be substituted, carboxylic acid, carbonylalkoxy, aminocarbonyl, alkylaminocarbonyl, halogen, halogenomethyl, dihalogenomethyl, trihalogenomethyl, sulfamide, substituted sulfamide with substituents selected from alkyl, allyl, phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxyalkoxy, amino, alkylamino and halogen and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxyalkoxy, amino, alkylamino, halogen and benzyl, urea which may be substituted with alkyl, aminoalkyl, alkoxyalkyl or aminoalkoxyalkyl, and carbamate which may be substituted with alkyl, aminoalkyl, alkoxyalkyl or aminoalkoxyalkyl,
- X signifies a linear spacer of from 1 to 6 atoms length and containing carbon, nitrogen, oxygen and/or sulphur atoms, of which up to 2 atoms can be nitrogen atoms and 1 atom can be oxygen or sulphur,
- r is an integer of from 0 to 1; and
- Y is selected from —CO—, —CS—, —NHCO—, —NHCONH— and —SO2—;
or a pharmaceutically acceptable salt thereof,
or
b2) a monobactam derivative of the general formula III:
- wherein Rj and Rj′ are independently selected from hydrogen; alkyl; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxyalkoxy, amino, alkylamino, dialkylamino and halogen; benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxyalkoxy, amino, alkylamino, dialkylamino and halogen; alkylamino and alkoxyalkyl;
- in which
R4′ signifies hydrogen, alkyl or CH(Rx′)Z′, wherein -
- Rx′ is selected from hydrogen; (C1-C6)alkyl; allyl; phenyl and (C3-C6)cycloalkyl; and Z′ signifies COOH or a group of one of the following two formulae:
-
- in which Rd′ is hydrogen or hydroxy; and
R6 is as defined for formula I; or a pharmaceutically acceptable salt thereof;
or
b3) a penam sulfone derivative of the general formulae IV or V:
- in which Rd′ is hydrogen or hydroxy; and
- in which
-
- R9 signifies COOH or a 5-6 membered monocyclic or polycyclic heteroaromatic group;
- R10 signifies hydrogen or halogen;
- R11 signifies CH2R12; CH═CHR12 wherein R12 is hydrogen, halogen, cyano, carboxylic acid, acyl such as acetyl, carboxamide which may be substituted, alkoxycarbonyl or a 5-6 membered heteroaromatic ring which is optionally substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or which is optionally fused with a 5-6 membered heteroaromatic ring; CH═NR12′ wherein R12′ is amino, alkylamino, dialkylamino, aminocarbonyl, acylamino such as acetylamino, hydroxy, alkoxy,
or a pharmaceutically acceptable salt thereof;
or
b4) an oxapenam derivative of the general formula VI:
- in which
-
- R13 signifies OR14; S(O)nR14 or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; whereby n=0, 1 or 2, and R14 is hydrogen, alkyl, (C2-C7) alkene, (C2-C7) alkyne or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
or a pharmaceutically acceptable salt thereof;
or
b5) a penem derivative of the general formula VII:
- R13 signifies OR14; S(O)nR14 or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; whereby n=0, 1 or 2, and R14 is hydrogen, alkyl, (C2-C7) alkene, (C2-C7) alkyne or a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
- in which
-
- R15 signifies a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or which is optionally fused with a 5-6 membered heteroaromatic ring and/or which is optionally bound to the exo-methylene group over a —CH═CH— spacer being preferably in the (E)-configuration,
or a pharmaceutically acceptable salt thereof;
or
b6) a cephem sulfone derivative of the general formula VIII:
- R15 signifies a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; or which is optionally fused with a 5-6 membered heteroaromatic ring and/or which is optionally bound to the exo-methylene group over a —CH═CH— spacer being preferably in the (E)-configuration,
- in which
-
- R16 signifies COOR17, whereby R17 signifies hydrogen or alkyl; or a 5-6 membered heteroaromatic ring which is optionally fused with a 5-6 membered heteroaromatic ring being optionally substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, halogen; and/or being optionally bound to the exo-methylene group over a —CH═CH— spacer being preferably in the (E)-configuration,
or a pharmaceutically acceptable salt thereof;
or
b7) a carbapenem derivative of the general formula IX:
- R16 signifies COOR17, whereby R17 signifies hydrogen or alkyl; or a 5-6 membered heteroaromatic ring which is optionally fused with a 5-6 membered heteroaromatic ring being optionally substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, halogen; and/or being optionally bound to the exo-methylene group over a —CH═CH— spacer being preferably in the (E)-configuration,
- in which R18 signifies —S-alkyl, —S—(CH2)2—NH—CH═NH or a group of the following two formulae
- wherein Rk and Rl are individually selected from hydrogen, alkyl, 2-, 3-, 4-carboxyphenyl and sulfamoyl, or a pharmaceutically acceptable salt thereof;
or
b8) a boronate derivative of the general formula X: - wherein R19 signifies a 5-6 membered heteroaromatic ring which may be substituted with amino, alkylamino, dialkylamino or alkylsulfoxide, or a pharmaceutically acceptable salt thereof;
or
b9) a boronate derivative of the general formula XI: - wherein
-
- R20 and 21 are independently selected from a 5-6 membered heteroaromatic ring; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
or a pharmaceutically acceptable salt thereof;
or
b10) a phosphonate derivative of the general formula XII:
- R20 and 21 are independently selected from a 5-6 membered heteroaromatic ring; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
- wherein
-
- R22 is selected from a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen and which is optionally fused with a 5-6 membered heteroaromatic ring; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
or a pharmaceutically acceptable salt thereof;
or
b11) a diazabicyclooctane derivative of the general formula XIII:
- R22 is selected from a 5-6 membered heteroaromatic ring which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen and which is optionally fused with a 5-6 membered heteroaromatic ring; phenyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen; and benzyl which may be substituted with 1 to 5 substituents selected from alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino and halogen,
- in which
-
- R23 signifies hydrogen, carboxylic acid, alkoxycarbonyl or carboxamide which may be substituted, and
- R24 signifies SO3H, OSO3H or OCRjRj′COOH, wherein Rj and Rj′ are as defined for formula II,
or a pharmaceutically acceptable salt thereof.
2. Any embodiment as disclosed in the following claims 2 to 45, with their dependency or reference to claim 1 being replaced by a reference to preceding paragraph 1.
Claims (6)
1-45. (canceled)
46. A compound of formula Ib:
wherein
R1 is SO3H;
R2 is H;
R3 is methyl;
R4 is C(Rx)(Ry)Z; whereby
Rx=Ry=H, and Z is a group of one of the formulae
47. The compound of claim 46 , wherein Rd and Re are hydroxy and Rf is hydrogen, or a pharmaceutically acceptable salt or inner salt thereof.
49. The compound of claim 46 , wherein said compound is (3S,4S)-3-{(2Z)-2-(4-aminopyrimidin-2-yl)-3-[(1,5-dihydroxy-4-oxo(2-hydropyridyl))methoxy]-3-azaprop-2-enoylamin}-4-methyl-2-oxoazetidinesulfonic acid.
50. A pharmaceutical composition, comprising a therapeutically effective amount of a compound according to claim 46 , or a pharmaceutically acceptable salt or inner salt thereof, and a pharmaceutically acceptable excipient.
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