WO1999018078A1 - Process for the synthesis of carbapenem intermediates, and compounds produced - Google Patents

Process for the synthesis of carbapenem intermediates, and compounds produced Download PDF

Info

Publication number
WO1999018078A1
WO1999018078A1 PCT/US1998/020830 US9820830W WO9918078A1 WO 1999018078 A1 WO1999018078 A1 WO 1999018078A1 US 9820830 W US9820830 W US 9820830W WO 9918078 A1 WO9918078 A1 WO 9918078A1
Authority
WO
WIPO (PCT)
Prior art keywords
groups
substituted
unsubstituted
straight
branched
Prior art date
Application number
PCT/US1998/020830
Other languages
French (fr)
Inventor
Mark S. Jensen
Chunhua Yang
Nobuyoshi Yasuda
Original Assignee
Merck & Co., Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GBGB9806031.2A external-priority patent/GB9806031D0/en
Application filed by Merck & Co., Inc. filed Critical Merck & Co., Inc.
Priority to AU96813/98A priority Critical patent/AU737447B2/en
Priority to EP98950888A priority patent/EP1023271A4/en
Priority to JP2000514889A priority patent/JP2001519332A/en
Priority to CA002305404A priority patent/CA2305404A1/en
Publication of WO1999018078A1 publication Critical patent/WO1999018078A1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D477/00Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbapenicillins, thienamycins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulphur-containing hetero ring
    • C07D477/10Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbapenicillins, thienamycins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulphur-containing hetero ring with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 4, and with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2
    • C07D477/12Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbapenicillins, thienamycins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulphur-containing hetero ring with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 4, and with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2 with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached in position 6
    • C07D477/14Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbapenicillins, thienamycins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulphur-containing hetero ring with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 4, and with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2 with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached in position 6 with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached in position 3
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04Antibacterial agents
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/22Tin compounds
    • C07F7/2208Compounds having tin linked only to carbon, hydrogen and/or halogen

Definitions

  • the present invention relates to a process for synthesizing carbapenem intermediates. Generally the carbapenems are substituted at the 2-position. The intermediate compounds are included as well.
  • MRSA methicillin resistant Staphylococcus aureus
  • MRSE methicillin resistant Staphylococcus epider idis
  • MRCNS methicillin resistant coagulase negative Staphylococci
  • R represents H or methyl
  • P and P* represent protecting groups and each R 1 represents H, halo, OH, OP wherein P is a protecting group, -Ci- ⁇ straight- or branched-chain alkyl, unsubstituted or substituted with one to four R d groups; and -C3-7 cycloalkyl, unsubstituted or substituted with one to four R d groups; each R d independently represents halo; OP, wherein P is a protecting group, -CN; -N0 2 ; -NR e R f ; -ORg; -SRg; -CONR e R f ; -COORg; - SORg; -SO 2 Rg; -SO 2 NReRf; -NReS0 2 R f ; -CORe ; -NRe COR f ; -OCORe; - OCONReRf; -NReCONRfRg; -
  • R e , R f and Rg represent hydrogen; -R*; -Ci-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups; or R e and R 1 taken together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one to three of O, S, -C(O)- or NR g with RS as defined above, said ring being unsubstituted or substituted with one to four Ri groups;
  • each Ri independently represents halo; -CN; -NO2; phenyl; -NHS02R h ; -OR h , -SR h ; -N(R h )2; -N+(Rh) 3; -C(O)N(R h )2; - SO2N(R h )2; heteroaryl; heteroarylium; -C ⁇ 2R h ; -C(O)R h ; -OCOR h ; - NHCOR* 1 ; guanidinyl; carbamimidoyl or ureido;
  • each Rh independently represents hydrogen, a -Ci-6 straight or branched-chain alkyl group, a -C3-C6 cycloalkyl group or phenyl, or when two R* 1 groups are present, said BP- groups may be taken in combination and represent a 4-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, -C(O)-, NH and NCH3;
  • Q is selected from the group consisting of:
  • a and b are 1, 2 or 3;
  • L " is a pharmaceutically acceptable counterion; ⁇ represents O, S or NR S ; ⁇ , ⁇ , ⁇ , ⁇ and ⁇ represent CRt, N or N + R s , provided that no more than one of ⁇ , ⁇ , ⁇ , ⁇ and ⁇ is N + R s ;
  • R* is selected from the group consisting of:
  • d represents O, S or NRk
  • e, g, x, y and z represent CR m , N or N + R k , provided that no more than one of e, g, x, y and z in any given structure represents N + Rk;
  • each R independently represents a member selected from the group consisting of: hydrogen; halo; -CN; -NO 2 ; -NR n R°; -OR n ; - SR n ; -CONRnR ; -COOR h ; -SOR n ; -S0 2 R n ; -S0 NR n R°; -NR n SO 2 R°; - COR*; -NRnCORo; -OCOR*; -OCONR n R°; -NRnCO 2 R h ; -NR n CONR°Rh; .
  • R n and R° represent hydrogen, phenyl; -Ci-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups; each R s independently represents hydrogen; phenyl or -Ci- straight- or branched-chain alkyl, unsubstituted or substituted with one to four R 1 groups;
  • each R* independently represents hydrogen; halo; phenyl; - CN; -NO 2 ; -NR"R V ; -OR u ; -SR U ; -CONR u R v ; -COOR h ; -SOR u ; -SO 2 Ru ; - SO 2 NRuRv ; -NR u SO 2 R v ; -COR u ; -NR"COR v ; -OCOR u ; -OCONR ⁇ Rv; .
  • R u and R v represent hydrogen or -Ci-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or R u and R v together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one or more of O, S, NR W or -C(O)-, said ring being unsubstituted or substituted with one to four Ri groups;
  • each R w independently represents hydrogen; -Ci-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; C3-6 cycloalkyl optionally substituted with one to four R 1 groups; phenyl optionally substituted with one to four R 1 groups, or heteroaryl optionally substituted with 1-4 R 1 groups; or BP and R w taken together with any intervening atoms represent a 5-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, NH or NCH3;
  • R x represents hydrogen or a Ci-8 straight- or branched- chain alkyl, optionally interrupted by one or two of O, S, SO, SO2, NR W , N + R"R W , or -C(O)-, said chain being unsubstituted or substituted with one to four of halo, CN, NO2, OR w , SR W , SOR w , SO2R w , NR h R w , N+(R h )2R w , -C(O)-R w , C(O)NRhRw ?
  • R and R z represent hydrogen; phenyl; -Ci_6 straight or branched chain alkyl, unsubstituted or substituted with one to four R 1 groups, and optionally interrupted by O, S, NR W , N+R h R w or -C(O)-;
  • R x and R together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by O, S, SO2, NR W
  • R, P and P* are as previously defined and L represents a leaving group, to produce a compound of formula 6.
  • alkyl refers to a monovalent alkane (hydrocarbon) derived radical containing from 1 to 10 carbon atoms unless otherwise defined. It may be straight, branched or cyclic. Preferred alkyl groups include methyl, ethyl, propyl, isopropyl, butyl, t-butyl, cyclopentyl and cyclohexyl. When substituted, alkyl groups may be substituted with up to four substituent groups, selected from R" and R 1 , as defined, at any available point of attachment. When the alkyl group is said to be substituted with an alkyl group, this is used interchangeably with "branched alkyl group”.
  • Cycloalkyl is a specie of alkyl containing from 3 to 15 carbon atoms, without alternating or resonating double bonds between carbon atoms. It may contain from 1 to 4 rings which are fused.
  • alkenyl refers to a hydrocarbon radical straight, branched or cyclic containing from 2 to 10 carbon atoms and at least one carbon to carbon double bond.
  • Preferred alkenyl groups include ethenyl, propenyl, butenyl and cyclohexenyl.
  • alkynyl refers to a hydrocarbon radical straight or branched, containing from 2 to 10 carbon atoms and at least one carbon to carbon triple bond.
  • Preferred alkynyl groups include ethynyl, propynyl and butynyl.
  • Aryl refers to aromatic rings e.g., phenyl, substituted phenyl and the like, as well as rings which are fused, e.g., naphthyl, phenanthrenyl and the like.
  • An aryl group thus contains at least one ring having at least 6 atoms, with up to five such rings being present, containing up to 22 atoms therein, with alternating (resonating) double bonds between adjacent carbon atoms or suitable heteroatoms.
  • the preferred aryl groups are phenyl, naphthyl and phenanthrenyl.
  • Aryl groups may likewise be substituted as defined.
  • Preferred substituted aryls include phenyl and naphthyl.
  • Heteroaryl refers to a monocyclic aromatic hydrocarbon group having 5 or 6 ring atoms, or a poly cyclic aromatic group having 8 to 16 atoms, containing at least one heteroatom, O, S, S(O), SO2 or N, in which a carbon or nitrogen atom is the point of attachment, and in which one or two additional carbon atoms is optionally replaced by a heteroatom selected from O or S, and in which from 1 to 3 additional carbon atoms are optionally replaced by nitrogen heteroatoms, said heteroaryl group being optionally substituted as described herein. Examples of this type are pyrrole, pyridine, oxazole, thiazole and oxazine. Additional nitrogen atoms may be present together with the first nitrogen and oxygen or sulfur, giving, e.g., thiadiazole and the like.
  • polycyclic heteroaromatics examples include benzopyrans, benzofurans, benzopyrroles, benzimidazoles, benzothiazoles, quinolines, purines, isoquinolines, benzopyrimidines, dibenzofurans, dibenzothiophenes, 1,8-naphthosultams,
  • heterocycle refers to a 5-16 membered cycloalkyl group (nonaromatic) with 1-4 rings, in which one of the carbon atoms in the ring is replaced by a heteroatom selected from O, S or N, and in which up to three additional carbon atoms may be replaced by heteroatoms.
  • heteroatom means O, S, S(O), S(O) 2 or N, selected on an independent basis.
  • Heteroarylium refers to heteroaryl groups bearing a quaternary nitrogen atom and thus a positive charge. Examples include the following:
  • heterocycloalkyl refers to a cycloalkyl group (nonaromatic) in which one of the carbon atoms in the ring is replaced by a heteroatom selected from O, S or N, and in which up to three additional carbon atoms may be replaced by hetero atoms.
  • quaternary nitrogen and “positive charge” refer to tetravalent, positively charged nitrogen atoms including, e.g., the positively charged nitrogen in a tetraalkylammonium group (e. g. tetramethylammonium), heteroarylium, (e.g., N-methyl- pyridinium), basic nitrogens which are protonated at physiological pH, and the like.
  • Cationic groups thus encompass positively charged nitrogen-containing groups, as well as basic nitrogens which are protonated at physiologic pH.
  • heteroatom means O, S or N, selected on an independent basis.
  • Alkoxy refers to alkyl-O-, with the alkyl group optionally substituted as described herein.
  • L refers to a leaving group. Examples of suitable L groups are methanesulfonyl (mesyl or OMs), toluenesulfonyl (OTs), trifluoromethanesulfonyl (triflate or OTf), halo, and phosphonyl based groups like diphenylphosphonyl.
  • Halogen and "halo" refer to bromine, chlorine, fluorine and iodine. When the leaving group L is halo, this refers to Br, Cl and I.
  • M is H or a metal cation. Metal cation as used herein refers to Na, K, Mg, Zn and Li. Preferably, M is H or a metal cation selected from Na and K.
  • protecting groups for the compounds of the present invention will be recognized from the present application taking into account the level of skill in the art, and with reference to standard textbooks, such as Greene, T. W. et al. Protective Groups in Organic Synthesis Wiley, New York (1991). Examples of suitable protecting groups are contained throughout the specification.
  • P, P ⁇ . and P* represent hydroxyl and carboxyl protecting groups, respectively.
  • Y may represent a protecting group for X, which in turn represents O or N (see compound 4 below).
  • These groups are generally removable, i.e., they can be removed, if desired, by procedures which will not cause cleavage or other disruption of the remaining portions of the molecule. Such procedures include chemical and enzymatic hydrolysis, treatment with chemical reducing or oxidizing agents under mild conditions, treatment with a transition metal catalyst and catalytic hydrogenation.
  • carboxyl protecting groups P* include allyl, benzhydryl, 2-naphthylmethyl, benzyl, silyl groups such as t-butyldimethylsilyl (TBDMS), trimethylsilyl, (TMS), triethylsilyl (TES), phenacyl, p-methoxybenzyl, o-nitrobenzyl, p-methoxyphenyl, p- nitrobenzyl, 4-pyridylmethyl and t-butyl.
  • TDMS t-butyldimethylsilyl
  • TMS trimethylsilyl
  • TES triethylsilyl
  • phenacyl p-methoxybenzyl
  • o-nitrobenzyl p-methoxyphenyl
  • p-methoxyphenyl p-methoxyphenyl
  • 4-pyridylmethyl and t-butyl 4-pyridylmethyl and t-buty
  • Suitable hydroxy protecting groups P and P ⁇ include TMS, TES, TBDMS, o-nitrobenzyloxycarbonyl, p- nitrobenzyloxycarbonyl, benzyloxycarbonyl, allyloxycarbonyl, t- butyloxycarbonyl, 2,2,2-trichloroethyloxycarbonyl and the like.
  • suitable protecting groups Y for X equal to N include,for example, groups where the N is protected by or incorporated into a ring, such as by forming a piperidinyl group. Similarly, the N can be disubstituted to provide a nitrogen in protected form. In this instance, Y would represent disubstitution on the nitrogen atom.
  • Y represents H or a protecting group as noted above.
  • X and Y can be considered in combination to represent a ring system, containing from 1-4 rings comprised of from 5 to 16 atoms, 0 to 3 of which are N atoms, and 0 to 2 of which are selected from O, S, S(O) and S(0) 2 .
  • the ring system is aromatic, non-aromatic or partially aromatic and is unsubstituted or substituted with 1-3 groups selected from the group consisting of halo, OH, OP, Ci-6 alkyl, Ci-6 alkyl substituted with 1-3 of OH, OP, halo, NH2, NHCi-4 alkyl or N(Cl-4 alkyl)2-
  • X and Y are taken in combination to represent a ring system as defined above.
  • the preferred ring system is a 1,8-naphthosultam, unsubstituted or substituted with 1- 3 groups selected from Ci-6 alkyl unsubstituted or substituted with 1-3 of halo, OH or OP.
  • a preferred aspect of the invention relates to compounds of formulas 6, 4' and 5 wherein one R 1 represents a group which contains a positively charged moiety, and the remaining R 1 groups are selected from hydrogen and C ⁇ .Q straight or branched chain alkyl, unsubstituted or substituted with one to four R°- groups. More particularly, this subset of interest includes compounds of formulas 6, 4' and 5 wherein one R 1 represents a group containing a positively charged moiety and the remaining R 1 groups are hydrogen.
  • the positively charged moiety or moieties that are contained in one or more R 1 groups it is preferred that from 1-3 positive charges be present, and most preferably two positive charges be present, balanced by a carboxylate anion and a negatively charged counterion.
  • R 1 group represents a -Ci-6 straight or branched chain alkyl group, substituted with one to four Rd groups, wherein one R" group represents -R* or Q.
  • R 1 group represents a -Ci-6 straight or branched chain alkyl group, substituted with one to four Rd groups, wherein one R" group represents -R* or Q.
  • R3 is Cl, Br or I, which is comprised of reacting a compound of formula 2:
  • R 2 is Cl, Br or I
  • X represents O or NH and Y represents H or a protecting group, or in the alternative, X and Y taken in combination represent a ring system containing from 0-3 nitrogen atoms and 0-2 heteroatoms selected from O, S, S(O) and S(O)2, said ring system having
  • R3 is Cl, Br or I, with a compound of the formula M-X-Y wherein M is H or a metal cation, and X and Y are as previously defined, to produce a compound of formula 4.
  • each R 1 is as described above, comprising reacting a compound of formula 1:
  • R3 is Cl, Br or I, with a naphthosultam of formula 5:
  • R represents H or methyl
  • P and P* represent protecting groups and each R 1 is as described above, comprising reacting a compound of formula 4':
  • R, P and P* are as previously defined and L represents a leaving group, to produce a compound of formula 6.
  • each R 1 is as described above, comprising reacting a compound of formula 1:
  • R3 is Cl, Br or I, with a naphthosultam of formula 5:
  • P represents a member selected from the group consisting of: TES, TMS, TBDMS, PNB, p-nitrobenzyloxycarbonyl, allyl and allyloxycarbonyl.
  • P* represents a member selected from the group consisting of: TES, TMS, TBDMS, PNB, and allyl.
  • L represents a leaving group selected from the group consisting of: diphenylphosphoryl, halo, mesyl and triflate.
  • Compounds which are of interest herein include those represented by one of the following formulas:
  • R3 is Cl, Br or I
  • X represents O or NH and Y represents H or a protecting group, or X and Y taken in combination represent a ring system containing from 0-3 nitrogen atoms and 0-2 heteroatoms selected from O, S, S(O) and S(O)2, said ring system having 1-4 rings, with from 5-16 atoms, said system being non-aromatic, partially aromatic or aromatic, and being unsubstituted or substituted with from 1-3 groups selected from halo, OH, OP, wherein P is a protecting group, Ci_ alkyl and Cl-6 alkyl substituted with from 1-3 of halo, OH, OP, NH2, NHC W alkyl and N(C W alkyl) 2
  • each R 1 represents H, halo, OH, OP wherein P is a protecting group, C j.g alkyl or C ⁇ alkyl substituted with 1-3 of halo, OH, OP, NH2,
  • the stannatrane 2 having a halo group attached directly to the tin atom can be obtained in accordance with Vedejs, E. et al. J. Am. Chem. Soc. 114: 6556-6558 (1992), the teachings of which are incorporated herein by reference.
  • the carbapenem 7 having a leaving group at position 2 can likewise be obtained in accordance with Schmitt, S. M. et al., J. Antibiotics 41(6): 780-787 (1988), the teachings of which are incorporated herein by reference.
  • the carboxylic acid group at C-3 of the carbapenem is generally protected as a carboxyl protecting group such as p-nitrobenzyl (PNB), allyl, p-methoxybenzyl, trichloroethyl, 2- trimethylsilyl ethyl, and the like.
  • PNB p-nitrobenzyl
  • allyl allyl
  • p-methoxybenzyl trichloroethyl
  • 2- trimethylsilyl ethyl 2- trimethylsilyl ethyl
  • the hydroxyl group of the ⁇ -(hydroxyethyl) side-chain is optionally protected with a hydroxyl protecting group such as trimethylsilyl (TMS), triethylsilyl (TES), tert- butyldimethylsilyl (TBDMS), tert-butyldiphenylsilyl (TBDPS), acetyl, allyl oxycarbonyl, 2-trimethylsilylethoxy carbonyl, 2- trichloroethoxycarbonyl and the like.
  • TMS trimethylsilyl
  • TES triethylsilyl
  • TDMS tert- butyldimethylsilyl
  • TDPS tert-butyldiphenylsilyl
  • acetyl acetyl, allyl oxycarbonyl, 2-trimethylsilylethoxy carbonyl, 2- trichloroethoxycarbonyl and the like.
  • the compounds of the present invention are prepared as illustrated in flow sheet A.
  • a suitable solvent such as tetrahydrofuran (THF)
  • Addition of the CH 2 XY moiety to the carbapenem is accomplished by cross-coupling suitably protected 7 with stannatrane 4 in a suitable solvent such as dimethylpropylene urea (DMPU), hexamethylphosphoramide (HMPA), THF, toluene, DMF, NMP, NEP, and the like using an appropriate transition metal catalyst such as Pd(dba)2 and a ligand such as triphenyl phosphine, tris-2-furyl phosphine, triphenyl arsine and the like.
  • DMPU dimethylpropylene urea
  • HMPA hexamethylphosphoramide
  • THF toluene
  • DMF dimethylpropylene urea
  • NMP hexamethylphosphoramide
  • NEP hexamethylphosphoramide
  • a ligand such as triphenyl phosphine, tris-2-furyl phosphine, triphenyl ar
  • the final product may be characterized structurally by techniques such as NMR, IR, MS, and UV.
  • the final product if not crystalline, may be lyophilized from water to afford an amorphous, easily handled solid.
  • Still another aspect of the process that is of interest is the synthesis of a carbapenem compound of formula 6:
  • R represents H or methyl
  • P and P* represent protecting groups and each R 1 is as described above, comprising reacting a compound of formula 4':
  • R, P and P* are as previously defined, P ⁇ represents a protecting group or hydrogen and L represents a leaving group, in the presence of a catalyst (such as rhodium octanoate, rhodium acetate and the like), and metal halide (such as zinc bromide, zinc chloride, and the like) contacting the mixture with a base (such as alkylamines such as diisopropyl amine, t-butyl amine, 2,2,6,6,tetramethylpiperidine, methylamine, hexylamine, ethylamine, triethylamine, diisopropylethylamine, trimethylamine, ethyldimethylamine, tri-n- propylamine and the like, l,8-diazabicyclo[5.4.0]undec-7-ene (DBU), pyridine, imidazole, lutidine, collidine, 4-dimethylaminomethyl- pyridine, N,
  • MRSA/MRCNS In vitro antibacterial activity is predictive of in vivo activity when the compounds are administered to a mammal infected with a susceptible bacterial organism.
  • the compounds of the invention are determined to be active against MRSA.
  • the compounds of the invention can be formulated in pharmaceutical compositions by combining the compound with a pharmaceutically acceptable carrier. Examples of such carriers are set forth below. The invention is further described in connection with the following non-limiting examples.
  • Step 1 potassium l-(methoxycarbonylmethyl)-4-naphthalene sulfonate
  • Step 2 l-(methoxycarbonylmethyl)-5-nitro-4-naphthalene sulfonic acid Potassium l-(methoxycarbonylmethyl)-4-naphthalene sulfonate (10 g, 31.4 mmol) was added portionwise over 30 minutes to 90% nitric acid, which was cooled in a methanol / ice bath to approximately -15 ° C. After 2 hours, the bath temperature had reached -10°C and diethyl ether (200 mL) was added to the mixture.
  • Step 3 sodium l-(methoxycarbonylmethyl)-5-amino-4-naphthalene sulfonate l-(methoxycarbonylmethyl)-5-nitro-4-naphthalene sulfonic acid (2 g, 6.15 mmol) was dissolved in water (20 mL), containing 0.5 mL concentrated sulfuric acid, and was added dropwise over 5 minutes to a refluxing suspension of iron (4 g, 71.6 mmol) in water (100 mL). After refluxing for one hour, the dark mixture was cooled to room temperature, made basic with sodium carbonate, and concentrated to approximately 30mL. The residual mixture was placed on a CG-161 amberchrom resin column (2.5 x 30 cm).
  • N,O-Bistrimethylsilylacetamide (0.31 mL, 1.25 mmol) was added to a solution of 4-(2-(hydroxy)-ethyl)- 1,8-naphthosultam (0.125 g,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Communicable Diseases (AREA)
  • Oncology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

A process of synthesizing a carbapenem compound of formula (6), is disclosed using a compound of formula (4'). The intermediate compounds that are described herein are also included in the present invention.

Description

TITLE OF THE INVENTION
PROCESS FOR THE SYNTHESIS OF CARBAPENEM
INTERMEDIATES, AND COMPOUNDS PRODUCED
BACKGROUND OF THE INVENTION
The present invention relates to a process for synthesizing carbapenem intermediates. Generally the carbapenems are substituted at the 2-position. The intermediate compounds are included as well.
Many of the carbapenems are useful against gram positive microorganisms, especially methicillin resistant Staphylococcus aureus (MRSA), methicillin resistant Staphylococcus epider idis (MRSE), and methicillin resistant coagulase negative Staphylococci (MRCNS). These antibacterials thus comprise an important contribution to therapy for treating infections caused by these difficult to control pathogens. There is an increasing need for agents effective against such pathogens (MRSA/MRCNS) which are at the same time relatively free from undesirable side effects.
SUMMARY OF THE INVENTION In one aspect of the invention, a process of synthesizing a carbapenem compound of formula 6:
Figure imgf000003_0001
is disclosed wherein R represents H or methyl, P and P* represent protecting groups and each R1 represents H, halo, OH, OP wherein P is a protecting group, -Ci-β straight- or branched-chain alkyl, unsubstituted or substituted with one to four Rd groups; and -C3-7 cycloalkyl, unsubstituted or substituted with one to four Rd groups; each Rd independently represents halo; OP, wherein P is a protecting group, -CN; -N02; -NReRf; -ORg; -SRg; -CONReRf; -COORg; - SORg; -SO2Rg; -SO2NReRf; -NReS02Rf; -CORe; -NRe CORf; -OCORe; - OCONReRf; -NReCONRfRg; -NReCO2Rh; -OCO2Rh; -C(NRe)NRfRg; - NReC(NH)NRfRg; -NReC(NRf)Rg; -R* or -Q;
Re, Rf and Rg represent hydrogen; -R*; -Ci-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups; or Re and R1 taken together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one to three of O, S, -C(O)- or NRg with RS as defined above, said ring being unsubstituted or substituted with one to four Ri groups;
each Ri independently represents halo; -CN; -NO2; phenyl; -NHS02Rh; -ORh, -SRh; -N(Rh)2; -N+(Rh)3; -C(O)N(Rh)2; - SO2N(Rh)2; heteroaryl; heteroarylium; -Cθ2Rh; -C(O)Rh; -OCORh; - NHCOR*1; guanidinyl; carbamimidoyl or ureido;
each Rh independently represents hydrogen, a -Ci-6 straight or branched-chain alkyl group, a -C3-C6 cycloalkyl group or phenyl, or when two R*1 groups are present, said BP- groups may be taken in combination and represent a 4-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, -C(O)-, NH and NCH3;
Q is selected from the group consisting of:
C ® ® © a _ndΛ - © NRxRyRz
Figure imgf000004_0001
wherein: a and b are 1, 2 or 3;
L" is a pharmaceutically acceptable counterion; α represents O, S or NRS; β, δ, λ, μ and σ represent CRt, N or N+Rs, provided that no more than one of β, δ, λ, μ and σ is N+Rs;
R* is selected from the group consisting of:
Figure imgf000005_0001
wherein: d represents O, S or NRk; e, g, x, y and z represent CRm, N or N+Rk , provided that no more than one of e, g, x, y and z in any given structure represents N+Rk;
Rk represents hydrogen; -Ci-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or - (CH )nQ where n = 1, 2 or 3 and Q is as previously defined;
each R independently represents a member selected from the group consisting of: hydrogen; halo; -CN; -NO2; -NRnR°; -ORn; - SRn; -CONRnR ; -COORh; -SORn; -S02Rn; -S0 NRnR°; -NRnSO2R°; - COR*; -NRnCORo; -OCOR*; -OCONRnR°; -NRnCO2Rh; -NRnCONR°Rh; . OCO2Rh; -CNRnNR°Rh; -NRnCNHNR°Rh; -NR"C(NR°)Rh; -Ci-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; -C3-7 cycloalkyl, unsubstituted or substituted with one to four Ri groups; and -(CH2)nQ where n and Q are as defined above;
Rn and R° represent hydrogen, phenyl; -Ci-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups; each Rs independently represents hydrogen; phenyl or -Ci- straight- or branched-chain alkyl, unsubstituted or substituted with one to four R1 groups;
each R* independently represents hydrogen; halo; phenyl; - CN; -NO2; -NR"RV; -ORu; -SRU; -CONRuRv; -COORh; -SORu; -SO2Ru; - SO2NRuRv; -NRuSO2Rv; -CORu; -NR"CORv; -OCORu; -OCONR^Rv; . NRuCO2Rv; -NRuCONRvR ; -OC02Rv; -Ci-6 straight- or branched- chain alkyl, unsubstituted or substituted with one to four Ri groups;
Ru and Rv represent hydrogen or -Ci-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or Ru and Rv together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one or more of O, S, NRW or -C(O)-, said ring being unsubstituted or substituted with one to four Ri groups;
each Rw independently represents hydrogen; -Ci-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; C3-6 cycloalkyl optionally substituted with one to four R1 groups; phenyl optionally substituted with one to four R1 groups, or heteroaryl optionally substituted with 1-4 R1 groups; or BP and Rw taken together with any intervening atoms represent a 5-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, NH or NCH3;
Rx represents hydrogen or a Ci-8 straight- or branched- chain alkyl, optionally interrupted by one or two of O, S, SO, SO2, NRW, N+R"RW, or -C(O)-, said chain being unsubstituted or substituted with one to four of halo, CN, NO2, ORw, SRW, SORw, SO2Rw, NRhRw, N+(Rh)2Rw, -C(O)-Rw, C(O)NRhRw? SO2NRhRw, CO2Rw, OC(O)Rw, OC(O)NRhRW} NRhC(O)Rw, NRhC(O)NRhRw, or a phenyl or heteroaryl group which is in turn optionally substituted with from one to four R1 groups or with one to two Ci-3 straight- or branched- chain alkyl groups, said alkyl groups being unsubstituted or substituted with one to four R1 groups;
R and Rz represent hydrogen; phenyl; -Ci_6 straight or branched chain alkyl, unsubstituted or substituted with one to four R1 groups, and optionally interrupted by O, S, NRW, N+RhRw or -C(O)-;
or Rx and R together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by O, S, SO2, NRW
, N+R^Rw or -C(O)-, unsubstituted or substituted with 1 - 4 Ri groups, and when Rx and RJ together represent a 4-6 membered ring as defined above, Rz is as defined above or Rz represents an additional saturated 4-6 membered ring fused to the ring represented by Rx and RY taken together, optionally interrupted by O, S, NRW or -C(O)-, said rings being unsubstituted or substituted with one to four Ri groups
comprising reacting a compound of formula 4':
Figure imgf000007_0001
4'
with a carbapenem of formula 7:
Figure imgf000008_0001
wherein R, P and P* are as previously defined and L represents a leaving group, to produce a compound of formula 6.
DETAILED DESCRIPTION OF THE INVENTION
The invention is described herein in detail using the terms defined below unless otherwise specified.
The term "alkyl" refers to a monovalent alkane (hydrocarbon) derived radical containing from 1 to 10 carbon atoms unless otherwise defined. It may be straight, branched or cyclic. Preferred alkyl groups include methyl, ethyl, propyl, isopropyl, butyl, t-butyl, cyclopentyl and cyclohexyl. When substituted, alkyl groups may be substituted with up to four substituent groups, selected from R" and R1, as defined, at any available point of attachment. When the alkyl group is said to be substituted with an alkyl group, this is used interchangeably with "branched alkyl group".
Cycloalkyl is a specie of alkyl containing from 3 to 15 carbon atoms, without alternating or resonating double bonds between carbon atoms. It may contain from 1 to 4 rings which are fused.
The term "alkenyl" refers to a hydrocarbon radical straight, branched or cyclic containing from 2 to 10 carbon atoms and at least one carbon to carbon double bond. Preferred alkenyl groups include ethenyl, propenyl, butenyl and cyclohexenyl.
The term "alkynyl" refers to a hydrocarbon radical straight or branched, containing from 2 to 10 carbon atoms and at least one carbon to carbon triple bond. Preferred alkynyl groups include ethynyl, propynyl and butynyl.
Aryl refers to aromatic rings e.g., phenyl, substituted phenyl and the like, as well as rings which are fused, e.g., naphthyl, phenanthrenyl and the like. An aryl group thus contains at least one ring having at least 6 atoms, with up to five such rings being present, containing up to 22 atoms therein, with alternating (resonating) double bonds between adjacent carbon atoms or suitable heteroatoms. The preferred aryl groups are phenyl, naphthyl and phenanthrenyl. Aryl groups may likewise be substituted as defined. Preferred substituted aryls include phenyl and naphthyl.
Heteroaryl refers to a monocyclic aromatic hydrocarbon group having 5 or 6 ring atoms, or a poly cyclic aromatic group having 8 to 16 atoms, containing at least one heteroatom, O, S, S(O), SO2 or N, in which a carbon or nitrogen atom is the point of attachment, and in which one or two additional carbon atoms is optionally replaced by a heteroatom selected from O or S, and in which from 1 to 3 additional carbon atoms are optionally replaced by nitrogen heteroatoms, said heteroaryl group being optionally substituted as described herein. Examples of this type are pyrrole, pyridine, oxazole, thiazole and oxazine. Additional nitrogen atoms may be present together with the first nitrogen and oxygen or sulfur, giving, e.g., thiadiazole and the like.
Examples of polycyclic heteroaromatics include benzopyrans, benzofurans, benzopyrroles, benzimidazoles, benzothiazoles, quinolines, purines, isoquinolines, benzopyrimidines, dibenzofurans, dibenzothiophenes, 1,8-naphthosultams,
The term "heterocycle" (heterocyclyl) refers to a 5-16 membered cycloalkyl group (nonaromatic) with 1-4 rings, in which one of the carbon atoms in the ring is replaced by a heteroatom selected from O, S or N, and in which up to three additional carbon atoms may be replaced by heteroatoms.
The term "heteroatom" means O, S, S(O), S(O)2 or N, selected on an independent basis. Heteroarylium refers to heteroaryl groups bearing a quaternary nitrogen atom and thus a positive charge. Examples include the following:
Figure imgf000010_0001
CH,
When a charge is shown on a particular nitrogen atom in a ring which contains one or more additional nitrogen atoms, it is understood that the charge may reside on a different nitrogen atom in the ring by virtue of charge resonance that occurs.
Figure imgf000010_0002
and
Figure imgf000011_0001
The term "heterocycloalkyl" refers to a cycloalkyl group (nonaromatic) in which one of the carbon atoms in the ring is replaced by a heteroatom selected from O, S or N, and in which up to three additional carbon atoms may be replaced by hetero atoms.
The terms "quaternary nitrogen" and "positive charge" refer to tetravalent, positively charged nitrogen atoms including, e.g., the positively charged nitrogen in a tetraalkylammonium group (e. g. tetramethylammonium), heteroarylium, (e.g., N-methyl- pyridinium), basic nitrogens which are protonated at physiological pH, and the like. Cationic groups thus encompass positively charged nitrogen-containing groups, as well as basic nitrogens which are protonated at physiologic pH.
The term "heteroatom" means O, S or N, selected on an independent basis.
Alkoxy refers to
Figure imgf000011_0002
alkyl-O-, with the alkyl group optionally substituted as described herein. L refers to a leaving group. Examples of suitable L groups are methanesulfonyl (mesyl or OMs), toluenesulfonyl (OTs), trifluoromethanesulfonyl (triflate or OTf), halo, and phosphonyl based groups like diphenylphosphonyl.
Halogen and "halo" refer to bromine, chlorine, fluorine and iodine. When the leaving group L is halo, this refers to Br, Cl and I. M is H or a metal cation. Metal cation as used herein refers to Na, K, Mg, Zn and Li. Preferably, M is H or a metal cation selected from Na and K.
When a group is termed "protected", such as by P, P*, PΛ, Y and the like, this means that the group is in modified form to preclude undesired side reactions at the protected site. Suitable protecting groups for the compounds of the present invention will be recognized from the present application taking into account the level of skill in the art, and with reference to standard textbooks, such as Greene, T. W. et al. Protective Groups in Organic Synthesis Wiley, New York (1991). Examples of suitable protecting groups are contained throughout the specification. In some of the compounds of the present invention, P, PΛ. and P* represent hydroxyl and carboxyl protecting groups, respectively. Likewise, Y may represent a protecting group for X, which in turn represents O or N (see compound 4 below). These groups are generally removable, i.e., they can be removed, if desired, by procedures which will not cause cleavage or other disruption of the remaining portions of the molecule. Such procedures include chemical and enzymatic hydrolysis, treatment with chemical reducing or oxidizing agents under mild conditions, treatment with a transition metal catalyst and catalytic hydrogenation. Examples of carboxyl protecting groups P* include allyl, benzhydryl, 2-naphthylmethyl, benzyl, silyl groups such as t-butyldimethylsilyl (TBDMS), trimethylsilyl, (TMS), triethylsilyl (TES), phenacyl, p-methoxybenzyl, o-nitrobenzyl, p-methoxyphenyl, p- nitrobenzyl, 4-pyridylmethyl and t-butyl. Examples of suitable hydroxy protecting groups P and PΛ include TMS, TES, TBDMS, o-nitrobenzyloxycarbonyl, p- nitrobenzyloxycarbonyl, benzyloxycarbonyl, allyloxycarbonyl, t- butyloxycarbonyl, 2,2,2-trichloroethyloxycarbonyl and the like.
Examples of suitable protecting groups Y for X equal to N include,for example, groups where the N is protected by or incorporated into a ring, such as by forming a piperidinyl group. Similarly, the N can be disubstituted to provide a nitrogen in protected form. In this instance, Y would represent disubstitution on the nitrogen atom.
When X represents O or NH, Y represents H or a protecting group as noted above. In the alternative, X and Y can be considered in combination to represent a ring system, containing from 1-4 rings comprised of from 5 to 16 atoms, 0 to 3 of which are N atoms, and 0 to 2 of which are selected from O, S, S(O) and S(0)2. The ring system is aromatic, non-aromatic or partially aromatic and is unsubstituted or substituted with 1-3 groups selected from the group consisting of halo, OH, OP, Ci-6 alkyl, Ci-6 alkyl substituted with 1-3 of OH, OP, halo, NH2, NHCi-4 alkyl or N(Cl-4 alkyl)2- Preferably X and Y are taken in combination to represent a ring system as defined above. The preferred ring system is a 1,8-naphthosultam, unsubstituted or substituted with 1- 3 groups selected from Ci-6 alkyl unsubstituted or substituted with 1-3 of halo, OH or OP.
A preferred aspect of the invention relates to compounds of formulas 6, 4' and 5 wherein one R1 represents a group which contains a positively charged moiety, and the remaining R1 groups are selected from hydrogen and C\.Q straight or branched chain alkyl, unsubstituted or substituted with one to four R°- groups. More particularly, this subset of interest includes compounds of formulas 6, 4' and 5 wherein one R1 represents a group containing a positively charged moiety and the remaining R1 groups are hydrogen.
With respect to the positively charged moiety or moieties that are contained in one or more R1 groups, it is preferred that from 1-3 positive charges be present, and most preferably two positive charges be present, balanced by a carboxylate anion and a negatively charged counterion.
Another preferred aspect is represented by formulas 6, 4' and 5 wherein one R1 group represents a -Ci-6 straight or branched chain alkyl group, substituted with one to four Rd groups, wherein one R" group represents -R* or Q. Hence, a positively charged moiety -R* or Q is attached to an alkyl group.
One aspect of the process that is of interest herein is the synthesis of a compound of formula 1:
Figure imgf000013_0001
wherein R3 is Cl, Br or I, which is comprised of reacting a compound of formula 2:
Figure imgf000014_0001
wherein R2 is Cl, Br or I,
with a compound of formula 3:
Figure imgf000014_0002
to produce a compound of formula 1.
Another aspect of the process that is of interest is the synthesis of a compound of formula 4:
Figure imgf000014_0003
wherein X represents O or NH and Y represents H or a protecting group, or in the alternative, X and Y taken in combination represent a ring system containing from 0-3 nitrogen atoms and 0-2 heteroatoms selected from O, S, S(O) and S(O)2, said ring system having
1-4 rings, with from 5-16 atoms, said system being non-aromatic, partially aromatic or aromatic, and being unsubstituted or substituted with from 1-3 groups selected from halo, OH, OP, wherein P is a protecting group, Cl-6 alkyl and Cl-6 alkyl substituted with from 1-3 of halo, OH, OP, NH2, NHC1.4 alkyl and N(CW alkyl)2 comprising reacting compound 1:
Figure imgf000015_0001
1
wherein R3 is Cl, Br or I, with a compound of the formula M-X-Y wherein M is H or a metal cation, and X and Y are as previously defined, to produce a compound of formula 4.
Another aspect of the process that is of particular interest is the synthesis of a compound of formula 4':
Figure imgf000015_0002
wherein each R1 is as described above, comprising reacting a compound of formula 1:
Figure imgf000015_0003
wherein R3 is Cl, Br or I, with a naphthosultam of formula 5:
Figure imgf000016_0001
wherein R1 is as previously defined, to produce a compound of formula 4'.
Another aspect of the process that is of interest is the synthesis of a carbapenem compound of formula 6:
Figure imgf000016_0002
wherein R represents H or methyl, P and P* represent protecting groups and each R1 is as described above, comprising reacting a compound of formula 4':
Figure imgf000016_0003
with a carbapenem of formula 7:
Figure imgf000017_0001
7
wherein R, P and P* are as previously defined and L represents a leaving group, to produce a compound of formula 6.
Another aspect of the process that is of particular interest is the synthesis of a compound of formula 4':
Figure imgf000017_0002
wherein each R1 is as described above, comprising reacting a compound of formula 1:
Figure imgf000017_0003
wherein R3 is Cl, Br or I, with a naphthosultam of formula 5:
Figure imgf000018_0001
wherein R1 is as previously defined, to produce a compound of formula 4'.
In particular, processes of interest are those described above wherein P represents a member selected from the group consisting of: TES, TMS, TBDMS, PNB, p-nitrobenzyloxycarbonyl, allyl and allyloxycarbonyl.
Other processes that are of particular interest are those described above wherein P* represents a member selected from the group consisting of: TES, TMS, TBDMS, PNB, and allyl.
Still other processes that are of particular interest are those described above wherein R represents methyl.
Still other processes that are of particular interest are those described above wherein R3 represents I. Still other processes that are of particular interest are those described above wherein R represents Cl.
Still other processes that are of particular interest are those described above wherein L represents a leaving group selected from the group consisting of: diphenylphosphoryl, halo, mesyl and triflate. Compounds which are of interest herein include those represented by one of the following formulas:
Figure imgf000018_0002
wherein R3 is Cl, Br or I;
Figure imgf000019_0001
wherein X represents O or NH and Y represents H or a protecting group, or X and Y taken in combination represent a ring system containing from 0-3 nitrogen atoms and 0-2 heteroatoms selected from O, S, S(O) and S(O)2, said ring system having 1-4 rings, with from 5-16 atoms, said system being non-aromatic, partially aromatic or aromatic, and being unsubstituted or substituted with from 1-3 groups selected from halo, OH, OP, wherein P is a protecting group, Ci_ alkyl and Cl-6 alkyl substituted with from 1-3 of halo, OH, OP, NH2, NHCW alkyl and N(CW alkyl)2
Figure imgf000019_0002
and
wherein each R1 represents H, halo, OH, OP wherein P is a protecting group, Cj.g alkyl or C^ alkyl substituted with 1-3 of halo, OH, OP, NH2,
NHC1-4 alkyl or N(Cι_4 alkyltø.
Species that are of particular interest are as follows:
Figure imgf000020_0001
Figure imgf000020_0002
Figure imgf000020_0003
Figure imgf000020_0004
Figure imgf000021_0001
The process of the present invention is illustrated by the following generic scheme:
FLOW SHEET A
Figure imgf000021_0002
Figure imgf000021_0003
Figure imgf000022_0001
7
Figure imgf000022_0002
The stannatrane 2 having a halo group attached directly to the tin atom can be obtained in accordance with Vedejs, E. et al. J. Am. Chem. Soc. 114: 6556-6558 (1992), the teachings of which are incorporated herein by reference. The carbapenem 7 having a leaving group at position 2 can likewise be obtained in accordance with Schmitt, S. M. et al., J. Antibiotics 41(6): 780-787 (1988), the teachings of which are incorporated herein by reference. The carboxylic acid group at C-3 of the carbapenem is generally protected as a carboxyl protecting group such as p-nitrobenzyl (PNB), allyl, p-methoxybenzyl, trichloroethyl, 2- trimethylsilyl ethyl, and the like. Furthermore, the hydroxyl group of the β-(hydroxyethyl) side-chain is optionally protected with a hydroxyl protecting group such as trimethylsilyl (TMS), triethylsilyl (TES), tert- butyldimethylsilyl (TBDMS), tert-butyldiphenylsilyl (TBDPS), acetyl, allyl oxycarbonyl, 2-trimethylsilylethoxy carbonyl, 2- trichloroethoxycarbonyl and the like.
The compounds of the present invention are prepared as illustrated in flow sheet A. Treatment of stannatrane 2 with halomethyl zinc halide or bis halomethyl zinc reagents 3 in a suitable solvent such as tetrahydrofuran (THF) at about -78 °C to about 35 °C for about 1 to 20 hours followed by isolation techniques yields the halomethyl stannatrane 1.
Reaction of 1 in a suitable solvent such as THF, DMF, DMSO, and the like with organometallic reagent MXY yields 4 which can be isolated by chromatography or crystallization.
Alternatively 4 can be prepared by treatment of the halostannatrane 2 with MCHXY in a solvent such as THF, t-butyl methyl ether and the like at about -100 °C to about 35 °C followed by an appropriate workup and isolation, wherein X=O and Y=tertiary butyl. Addition of the CH2XY moiety to the carbapenem is accomplished by cross-coupling suitably protected 7 with stannatrane 4 in a suitable solvent such as dimethylpropylene urea (DMPU), hexamethylphosphoramide (HMPA), THF, toluene, DMF, NMP, NEP, and the like using an appropriate transition metal catalyst such as Pd(dba)2 and a ligand such as triphenyl phosphine, tris-2-furyl phosphine, triphenyl arsine and the like. The temperature for this reaction is typically between 20 °C and 100 °C and the products are isolated by common techniques such as chromatography or crystallization. Suitable solvents for the invention disclosed herein include tetrahydrofuran (THF), ethyl acetate (EtOAc), H2O, C^ alcohol, toluene,
DMF, NMP, NEP, dichloromethane, acetonitrile, acetone and the like The synthesis of the target intermediate is completed by removing any protecting groups which are present in the penultimate intermediate 6. The deprotected final product is then purified, as necessary, using techniques such as ion exchange chromatography,
HPLC on reverse phase silica gel, MPLC on reverse phase polystyrene resin and recrystallization.
The final product may be characterized structurally by techniques such as NMR, IR, MS, and UV. For ease of handling, the final product, if not crystalline, may be lyophilized from water to afford an amorphous, easily handled solid.
Still another aspect of the process that is of interest is the synthesis of a carbapenem compound of formula 6:
Figure imgf000024_0001
wherein R represents H or methyl, P and P* represent protecting groups and each R1 is as described above, comprising reacting a compound of formula 4':
Figure imgf000024_0002
4'
with a compound of formula 9:
Figure imgf000024_0003
wherein R, P and P* are as previously defined, PΛ represents a protecting group or hydrogen and L represents a leaving group, in the presence of a catalyst (such as rhodium octanoate, rhodium acetate and the like), and metal halide (such as zinc bromide, zinc chloride, and the like) contacting the mixture with a base (such as
Figure imgf000024_0004
alkylamines such as diisopropyl amine, t-butyl amine, 2,2,6,6,tetramethylpiperidine, methylamine, hexylamine, ethylamine, triethylamine, diisopropylethylamine, trimethylamine, ethyldimethylamine, tri-n- propylamine and the like, l,8-diazabicyclo[5.4.0]undec-7-ene (DBU), pyridine, imidazole, lutidine, collidine, 4-dimethylaminomethyl- pyridine, N,N,N',N'-tetramethylethylenediamine (TMEDA), N- methylmorpholine (NMM) and the like) and triflating agent (such as trifluoromethanesulfonic anhydride and the like) and reacting the resulting solution with a palladium catalyst (such as Pd(OAc)2, Pd(PPh3)4 PdCl2, PdCl2(PPh3)2, PdCl2(CH3CN)2, Pd2(dba)3, Pd2(dba)3CHCl3, Pd(dba)2, and the like, wherein dba is dibenzylideneacetone) in the presence of a ligand (such as a ligand such as triphenyl phosphine, tris-2-furyl phosphine, triphenyl arsine and the like) to produce a compound of formula 6. The compounds of the present invention are valuable intermediates for antibacterial agents that are active against various Gram-positive and to a lesser extent Gram-negative bacteria, and accordingly find utility in human and veterinary medicine.
Many of the compounds that can be made in accordance with the present invention are biologically active against
MRSA/MRCNS. In vitro antibacterial activity is predictive of in vivo activity when the compounds are administered to a mammal infected with a susceptible bacterial organism.
Using standard susceptibility tests, the compounds of the invention are determined to be active against MRSA.
The compounds of the invention can be formulated in pharmaceutical compositions by combining the compound with a pharmaceutically acceptable carrier. Examples of such carriers are set forth below. The invention is further described in connection with the following non-limiting examples.
PREPARATIVE EXAMPLE 1 SYNTHESIS OF 4-(2-(TRIMETHYLSILYLOXY)-ETHYL)-l,8- NAPHTHOSULTAM
Figure imgf000026_0001
70:30 + minor isomers
Figure imgf000026_0002
Step 1: potassium l-(methoxycarbonylmethyl)-4-naphthalene sulfonate
A solution of methyl 1-naphthaleneacetate (1 mL, 5.77 mmol) in carbon tetrachloride (1 mL) was cooled under nitrogen in an ice bath. Chlorosulfonic acid (0.38 mL, 5.7 mmol) was added dropwise over 8 minutes. After an additional 30 minutes, the viscous mixture was removed from the bath and was stirred at room temperature for 17 hours to give a white solid. The solid was partitioned between methylene chloride (5 mL) and water (5 mL). After filtering through solka-floc, the methylene chloride layer was extracted with more water (2 x 5 mL), and the combined aqueous extracts were basified with potassium carbonate to give a precipitate. The suspension was concentrated to approximately 5 mL and was cooled in an ice bath.
The suspension was then filtered and the collected solid was washed with cold water (2 mL). The solid was dried under a stream of nitrogen to give the title compound as a white solid (0.84 g). !H NMR (DMSO-d6, 500 MHz) δ 3.73 (s, OMe), 4.27 (s, CH2Ar), 7.53 (d, ArH), 7.71 (t, ArH), 7.76 (t, ArH), 8.06 (d, ArH), 8.10 (d, ArH) and 8.73 (d, ArH).
Step 2: l-(methoxycarbonylmethyl)-5-nitro-4-naphthalene sulfonic acid Potassium l-(methoxycarbonylmethyl)-4-naphthalene sulfonate (10 g, 31.4 mmol) was added portionwise over 30 minutes to 90% nitric acid, which was cooled in a methanol / ice bath to approximately -15°C. After 2 hours, the bath temperature had reached -10°C and diethyl ether (200 mL) was added to the mixture. The precipitated solid was filtered, washed with ether (100 mL) and isopropanol (20 mL), and dried under a stream of nitrogen to give the title compound as an approximately 70:30 mixture of the 5- and 8-nitro isomers (approximately 12 g). lH NMR (D2O, 500 MHz) δ 3.69 (s, OMe), 4.30 (s, CH2Ar),
7.67 (t, ArH), 7.71 (d, ArH), 8.18 (d, ArH), 8.29 (d, ArH) and 8.33 (d, ArH).
Step 3: sodium l-(methoxycarbonylmethyl)-5-amino-4-naphthalene sulfonate l-(methoxycarbonylmethyl)-5-nitro-4-naphthalene sulfonic acid (2 g, 6.15 mmol) was dissolved in water (20 mL), containing 0.5 mL concentrated sulfuric acid, and was added dropwise over 5 minutes to a refluxing suspension of iron (4 g, 71.6 mmol) in water (100 mL). After refluxing for one hour, the dark mixture was cooled to room temperature, made basic with sodium carbonate, and concentrated to approximately 30mL. The residual mixture was placed on a CG-161 amberchrom resin column (2.5 x 30 cm). The column was washed with water (200 mL), 10% MeCN/ H2θ(200 mL), and 25% MeCN/ H2O (400 mL), collecting 25 mL fractions. Fractions 21-28 were combined and evaporated to give the title compound as a dark solid (0.675 g). lH NMR (D2O, 500 MHz) δ 3.64 (s, OMe), 4.18 (s, CH2Ar),
7.04 (d, ArH), 7.38 (d, ArH), 7.41 (d, ArH), 7.45 (t, ArH) and 8.22 (d, ArH). Step 4: 4-(methoxycarbonylmethyl)-1.8-naphthosultam
Sodium l-(methoxycarbonylmethyl)-5-amino-4- naphthalene sulfonate (0.675 g, 2.13 mmol) was suspended in phosphorous oxychloride (10 g, 65.2 mmol) and was refluxed for 1 hour to give a thin suspension. The mixture was cooled to room temperature and was partitioned between ethyl acetate (100 mL) and water (100 mL). The water layer was extracted with ethyl acetate (50 mL) and the combined ethyl acetate layers were washed with saturated aqueous sodium chloride (100 mL), dried over magnesium sulfate, filtered and evaporated to give the title compound as a solid (0.55 g). lH NMR (CDCI3, 500 MHz) δ 3.72 (s, OMe), 4.15 (s, CH2Ar), 6.86 (br s, NH), 6.97 (d, ArH), 7.60 (t, ArH), 7.67 (d, ArH), 7.71 (d, ArH) and 7.95 (d, ArH).
Step 5: 4-(2-(hydroxy)-ethyl)-1.8-naphthosultam
A solution of 4-(methoxycarbonylmethyl)-l,8- naphthosultam (0.2 g, 0.72 mmol) in tetrahydrofuran (2 mL) was cooled under nitrogen in an ice bath. Lithium aluminum hydride (1.44 mL of a 1.0 M solution in THF, 1.44 mmol) was added over 1 minute to give a light yellow suspension. After 30 minutes, water was carefully added and the mixture was partitioned between ethyl acetate (30 mL) and IN hydrochloric acid (10 mL). The aqueous layer was extracted with ethyl acetate (50 mL) and the combined ethyl acetate layers were washed with saturated aqueous sodium chloride (10 mL), dried over magnesium sulfate, filtered and evaporated. The residual solid (0.16g) was purified by preparative thin layer chromatography (2 x 1000 micron silica gel plates, developed/ eluted with 5% MeOH/CH2Cl2) to give the title compound as a solid (0.127 g). lH NMR (0.14 mL CDCI3 and 0.01 mL CD3OD, 500 MHz) δ
3.33 (t, CH2Ar), 3.91 (t, CH2OH), 6.84 (d, ArH), 7.49 (dd, ArH), 7.59 (d,
ArH), 7.59 (d, ArH) and 7.83 (d, ArH).
Step 6: 4-(2-(trimethylsilyloxy)-ethyl)-1.8-naphthosultam
N,O-Bistrimethylsilylacetamide (0.31 mL, 1.25 mmol) was added to a solution of 4-(2-(hydroxy)-ethyl)- 1,8-naphthosultam (0.125 g,
0.50 mmol) in tetrahydrofuran (1 mL). After one hour the mixture was evaporated and the residue was dissolved in methylene chloride (2 mL) and filtered through silica gel (2.5 g). The silica gel was eluted with methylene chloride (50 mL), the solvent was evaporated and the residue was lyophilized from benzene (3 mL) to give the title compound as an oil (0.16 g, quant.). iH NMR (CDCI3, 500 MHz) δ 0.035 (s, TMS), 3.37 (t, CH2Ar), 3.94 (t, CH2θ(TMS)), 6.95 (d, ArH), 7.56 (dd, ArH), 7.64 (d, ArH), 7.71 (d, ArH) and 7.92 (d, ArH).
EXAMPLE 1
Figure imgf000029_0001
A stirred suspension of potassium £-butoxide (1.68 g, 15.0 mmol) and t-butylmethyl ether (54 mL) under an atmosphere of dry nitrogen was cooled to -78 °C. A solution of sec-BuLi (9.1 mL of a 1.65 M solution in cyclohexane, 15.0 mmol) was added to the suspension over 5 min. After 2 h at - 78 °C, a solution of l-aza-5-chloro-5- stannabicyclo[3.3.3]undecane (A, 2.93 g, 10.0 mmol) and THF (60 mL) was added and the mixture was allowed to warm to rt over 4 h. After an additional 16 h at rt the solution was poured onto water (100 mL) and hexane (300 mL). The layers were partitioned and the organic phase was washed with water (2 x 100 mL), brine (50 mL) and dried (MgSO4) then concentrated to provide B as a clear light yellow oil (2.82g).
Η NMR (CDC13, 250 MHz) δ 3.09 (t, J = 6.4 Hz, 2H), 2.34 (m, 6H), 1.62 (m, 6H), 1.06 (s, 9H), 0.68 (m, 6H), 13C NMR (CDC13, 63 MHz) δ 72.9, 56.2, 54.7, 26.8, 23.2, 5.7. EXAMPLE 2
Figure imgf000030_0001
A solution of Pd(dba)2 (19 mg, 0.03 mmol), tris-2- furylphosphine (19 mg, 0.08 mmol) and HMPA (1 mL) was heated to 50 °C under a nitrogen atmosphere for 15 min. To the resulting yellow solution was added a solution of enol triflate (C, 201 mg, 0.33 mmol), of 1- aza-5-t-butoxymethyl-5-stannabicyclo[3.3.3]undecane (B, 173 mg, 0.50 mmol) and HMPA (1 mL) via cannula. The resulting solution was aged at 70 °C for 2 h. The mixture was diluted with t-butylmethyl ether (50 mL) and then washed with water (3 x 10 mL). The organic phase was dried (MgSO4) and concentrated to provide a brown oil (318 mg). Flash chromatography on silica gel with 95:5 hexane/EtOAc eluent provided D as a colorless crystalline solid (110 mg, 61 %).
Η NMR (CDCI3, 250 MHz) δ 8.19 (m, 2H), 7.64 (m, 2H), 5.43 (d, J = 13.9 Hz, IH), 5.21 (d, J = 13.9 Hz, IH), 4.80 (d, J = 14.1 Hz, IH), 4.23 (m, 2H), 4.03 (dd, J = 14.2, 1.0 Hz, IH), 3.40 (m, IH), 3.22 (dd, J = 5.7, 3.0 Hz, IH), 1.23 (d, J = 6.2 Hz, 3H), 1.20 (s, 9H), 1.15 (d, J = 7.5 Hz, 3H), 0.84 (s, 9H), 0.58 (s, 3H), 0.52 (s, 3H), 13C NMR (CDC1S, 63 MHz) δ 175.2, 160.8, 152.6, 147.5, 142.9, 127.9, 125.5, 123.6, 73.5, 65.8, 65.1, 60.1, 56.4, 55.6, 40.1, 27.3, 25.6, 22.3, 17.8, 15.3, -4.3, -5.1.
EXAMPLE 3
Figure imgf000030_0002
A Diethyl zinc (0.4 mL, 3.9 mmol) was added to dry THF (5 mL) under nitrogen at - 70 °C. Diiodomethane (0.6 mL, 7.4 mmol) was added dropwise. The mixture was aged at 0 °C for 1 h and then 30 min at 23 °C. The solution was cooled to 0 °C and l-aza-5-chloro-5- stannabicyclo[3.3.3]undecane (A, 450 mg, 1.5 mmol) was added in one portion. The mixture was stirred at rt for 20 h. Diethyl ether (10 mL) and water (10 mL) were added and the layers were partitioned. The organic phase was concentrated and the residue was applied to a silica column. Elution with hexane/EtOAc provided l-aza-5-iodomethyl-5- stannabicyclo[3.3.3]undecane (E) as a white solid (500 mg).
Η NMR (CDC13, 250 MHz) δ 2.37 (m, 6H), 1.67 (m, 6H), 1.66 (s, 2H), 0.82, (m, 6H). 13C NMR (CDCL, 63 MHz) δ 54.6, 23.3, 7.2, -13.5.
EXAMPLE 4
Figure imgf000031_0001
A suspension of l-aza-5-iodomethyl-5- stannabicyclo[3.3.3]undecane (E, 100 mg, 0.25 mmol), hydroxyethylnaphthosultam (F, 81 mg, 0.33 mmol),
Figure imgf000031_0002
(45 mg, 0.33 mmol) and DMF (0.5 mL) was stirred at 23 °C for 10 h. The mixture was partitioned between ether (5 mL) and water (5 mL) and the organic phase was washed with water (5 mL), dried (MgS04) then concentrated. The compound G was isolated by chromatography on silica with 4:1 hexane/EtOAc eluent to provide a white solid (110 mg).
Η NMR (CDC13, 250 MHz) δ 7.81 (d, J = 7.4 Hz, IH), 7.44 (m, 3H), 6.52 (m, IH). 3.91 (br m, 2H), 3.29 (t, J = 6.6 Hz, 2H), 2.90 (m, 2H). 2.35 (m, 6H), 1.65 (m, 6H), 0.82 (m, 6H), 13C NMR (CDC13, 63 MHz) δ 140.7, 138.8, 129.6, 129.4, 129.2, 128.4, 119.6, 119.3, 113.7, 102.1, 62.8, 54.7, 35.8, 29.8, 23.2, 8.1. EXAMPLE 5
Figure imgf000032_0001
A solution of Pd(dba)2 (19 mg, 0.03 mmol), tris-2- furylphosphine (19 mg, 0.08 mmol) and HMPA (0.7 mL) was heated to 50 °C under a nitrogen atmosphere for 30 min. The resulting yellow solution was added to a solution of enol triflate C (167 mg, 0.27 mmol), stannane G (110 mg, 0.21 mmol) and HMPA (0.7 mL) via cannula. The resulting solution was warmed to 75 °C for 3 h then cooled to room temperature. The mixture was diluted with ether (10 mL) and then washed with water (10 mL). The organic phase was dried (MgS04) and concentrated. The compound H was isolated by preparative TLC using hexane/EtOAc as eluent to provide a colorless solid (78 mg).
Η NMR (CDClj, 250 MHz) δ 8.24 (m, 2H), 7.93 (m, IH), 7.73 - 7.47 (m, 5H), 6.72 (d, J = 7.2 Hz, IH), 5.54 (d, J = 13.9 Hz, IH), 5.40 (d, J = 17.2 Hz, IH), 5.37 (d, J = 13.96 Hz, IH), 4.66 (d, J = 17.2 Hz, IH), 4.24 (m, 2H), 4.01 (t, J = 6.5 Hz, 2H), 3.38 (m, 3H), 3.30 (dd, J = 4.9, 3.0 Hz, IH), 1.29 (d, J = 7.3 Hz, 3H), 1.20 (d, J = 6.2 Hz, 3H), 0.83 (s, 9H), 0.06 (s, 3H), 0.05 (s, 3H), 13CNMR (CDClj, 63 MHz) δ 174.5, 161.1 , 147.7, 147.1, 142.5, 141.6, 137.2, 129.9, 129.3, 129.0, 128.9, 128.3, 128.2, 123.8, 120.0, 119.7, 1 15.9, 103.8, 65.7, 65.4, 62.9, 60.4, 55.4, 40.7, 38.0, 35.7, 25.7, 22.2, 17.9, 15.6, -4.3, -5.0 EXAMPLE 6
Figure imgf000033_0001
A solution of alcohol G (521 mg, 1.0 mmol) and methylene chloride (10 mL) was cooled to -78 °C under nitrogen and 2,6-lutidine (0.26 mL, 2.2 mmol) was added dropwise. After 10 min, trifluoromethanesulfonic anhydride (0.18 mL, 1.1 mmol) was added dropwise and the solution was warmed to —20 °C over 2 h. The reaction mixture was applied to a 1.2 cm pad of silica that was eluted with methylene chloride. The solvent was removed in vacuo to provide I as a yellow solid (571 mg, 87%).
Η NMR (CDCI3, 250 MHz) δ 7.82 (d, J = 7.4 Hz, IH), 7.55 (m, 2H), 7.34 (d, J = 8.6 Hz, IH), 6.56 (d, J = 7.3 Hz, IH), 4.78 (t, J = 7.1 Hz, 2H), 3.58 (t, J = 7.1 Hz, 2H), 2.91 (t, J = 5.5 Hz, 2H), 2.36 (t, J = 5.5 Hz, 6H), 1.65 (m, 6H), 0.82 (m, 6H). 13C NMR (CDC13, 62.9 MHz) 5138.9, 136.0, 130.2, 129.2, 128.8, 119.5, 119.1, 118.4 (q, J = 320 Hz), 112.5, 102.3, 75.6, 54.5, 32.3, 29.8, 23.0, 8.0.
EXAMPLE 7
Figure imgf000033_0002
A solution of triflate I (2.89 g, 4.42 mmol) and acetonitrile
(40 mL) was cooled under nitrogen to -10 °C and dabcoacetamide triflate J (1.49 g, 4.87 mmol) was added in one portion. The resulting mixture was stirred at rt for 18 h. The reaction mixture was added slowly to rapidly stirred diethylether (200 mL) and compound K was collected on a frit to provide 4.17 g of a yellow solid that was 93 wt% pure (90.3% yield, corrected).
Η NMR (CD3CN, 250 MHz) δ 7.98 (d, J=7.5 Hz, IH), 7.73 (d, J=7.5 Hz, IH), 7.60 (m, IH), 7.50 (d, J=8.7 Hz, IH), 6.83 (b, IH), 6.69 (d, J=7.3 Hz, IH), 6.43 (b, IH), 4.22 (s, 2H), 4.15 (m, 6H), 3.97 (m, 6H), 3.80 (m, 2H), 3.60 (m, 2H), 2.92 (s, 2H), 2.37 (t, J=5.6 Hz, 6H), 1.63 (m, 6H), 0.74 (t, J=6.8 Hz, 6H).
EXAMPLE 8
Figure imgf000034_0001
Iodomethylstannatrane E (1.01 g, 2.53 mmol), naphthosultam L (1.78 g, 2.53 mmol), diisopropylethylamine (1.32 L, 7.29 mmol) and N-methylpyrolidinone (30 mL) were combined and stirred at rt for 18 h. HPLC assay shows 91% assay yield. The reaction mixture was added slowly to rapidly stirred diethyl ether (300 mL). The resulting yellow solid K was collected on a frit (3.17 g, 51 wt%, 65% isolated yield). A pure sample was obtained by chromatography on C18 silica eluting with 20% to 40% acetonitrile and water. X represents the counterions for K, which is a mixture of iodide and triflate. EXAMPLE 9
Figure imgf000035_0001
A mixture of diazoketon M (2.00 g), Rh2(octa)4 (19.9 mg), ZnBr2 (11.8 mg) and CH2C12 (20 mL) was refluxed for 4 h. The mixture was cooled to -78 °C and triethylamine (0.65 mL) was added dropwise. After 30 min Tf2O (0.87 mL) was added dropwise. After an additional 30 min DMPU (20 mL) was added and the mixture was warmed to 24 °C .
A separate flask was charged with Pd2(dba)3-CHC13 (20.7 mg), 2-fur3P (23.2 mg) and DMPU (1 mL). The mixture was degassed then warmed to 70 °C for 30 min to provide a clear yellow solution.
A separate flask was charged with the stannane K coupling partner (200 mg), the enol triflate solution (2.69 mL of a 0.115 M solution) and the catalyst solution. The mixture was degassed then warmed to 70 °C. After 2 h the assay yield of N was 47%.
EXAMPLE 10
Figure imgf000035_0002
Pd2(dba)3-CHC13 (31.6 mg), 2-fur3P (35.4 mg) and NMP (2 mL) were combined, degassed with N2 and warmed to 60 °C for 30 min. The enol triflate (743 mg), stannatrane K (972 mg), diisopropylethylamine (47 mg) and NMP were combined, degassed with N2 and warmed to 60 °C. After 3 h the assay yield of P was 98.5% based on the current standard. The crude reaction mixture was diluted with THF (50 mL) and the resulting mixture was washed with 20% aqueous NaCl (3x50 mL). The THF was removed in vacuo and the residue was diluted with acetonitrile (5 mL). The resulting suspension was filtered through a frit providing 179 mg of crystalline stannatrane chloride A. To the mother liquor was added dropwise isopropanol (20 mL) and the resulting solid coupling product P (1.243 g) was collected on a frit. The mother liquor was concentrated to dryness then triturated with methanol (2 mL). The remaining solid stannatrane chloride A (116 mg) was collected on a frit.
EXAMPLE 11
Figure imgf000036_0001
A mixture of diazoketone Q (2.02 g), Rh2(octa)4 (16 mg),
ZnBr2 (49 mg) and CH2C12 (10 mL) was refluxed for 3 h. The mixture was cooled to -72 ®C and triethylamine (0.72 mL) was added dropwise. After 30 min Tf2O (0.71 mL) was added dropwise. After an additional 30 min NMP (12 mL) was added and the mixture was warmed to 24 °C .
The methylene chloride was removed in vacuo.
A separate flask was charged with Pd2(dba)3-CHC13 (2.6 mg), 2-fur3P (2.9 mg) and NMP (0.25 mL). The mixture was degassed with N2 then warmed to 70 °C for 30 min to provide a clear yellow solution.
A separate flask was charged with the stannane K (97 mg), the enol triflate solution (0.42 mL of the 0.29 M solution), diisopropylethyl-amine (3.9 mg), NMP (1.24 mL), and the catalyst solution. The mixture was degassed then warmed to 70 °C. After 6 h the assay yield of P was 70%.

Claims

WHAT IS CLAIMED IS:
1. A process of synthesizing a compound of formula 1:
Figure imgf000038_0001
1
wherein R3 is Cl, Br or I, comprising reacting a compound of formula 2:
Figure imgf000038_0002
wherein R2 is Cl, Br or I, with a compound of formula 3:
Figure imgf000038_0003
to produce a compound of formula 1.
2. A process of synthesizing a compound of formula 4:
Figure imgf000038_0004
wherein X represents O or NH and Y represents H or a protecting group, or in the alternative, X and Y taken in combination represent a ring system containing from 0-3 nitrogen atoms and 0-2 heteroatoms selected from O, S, S(O) and S(0)2, said ring system having
1-4 rings, with from 5-16 atoms, said system being non-aromatic, partially aromatic or aromatic, and being unsubstituted or substituted with from 1-3 groups selected from halo, OH, OP, wherein P is a protecting group, Cl-6 alkyl and Cl- alkyl substituted with from 1-3 of halo, OH, OP, NH2, NHCW alkyl and N(C1.4 alkyl)2 comprising reacting compound 1:
Figure imgf000039_0001
1
wherein R3 is Cl, Br or I, with a compound of the formula M-X-Y wherein M represents H or a metal cation, and X and Y are as previously defined, to produce a compound of formula 4.
A process of synthesizing a compound of formula 4':
Figure imgf000039_0002
4'
wherein each R1 represents H, halo, OH, OP wherein P is a protecting group, -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Rd groups; and -C3-7 cycloalkyl, unsubstituted or substituted with one to four Rd groups; each Rd independently represents halo; OP, wherein P is a protecting group, -CN; -NO2; -NReRf; -ORg; -SRg; -CONReRf; -COORg; - SORg; -SO2Rg; -SO2NReRf; -NReS02Rf; -CORe; -NRe CORf; -OCORe; - OCONReRf; -NReCONRfRg; -NReCO2Rh; -OCO2Rh; -C(NRe)NRiRg; - NReC(NH)NRfRg; -NReC(NR*)Rg; -R* or -Q;
Re, Rf and Rg represent hydrogen; -R*; -Cl-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups; or Re and R1 taken together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one to three of O, S, -C(O)- or NRg with Rg as defined above, said ring being unsubstituted or substituted with one to four Ri groups;
each Ri independently represents halo; -CN; -NO2; phenyl; -NHSO2Rh; -ORh, -SRh; -N(Rh)2; -N+(Rh)3; -C(0)N(Rh)2; - SO2N(Rh)2; heteroaryl; heteroarylium; -CO2Rh; -C(O)Rh; -OCORh; - NHCOR*1; guanidinyl; carbamimidoyl or ureido;
each BP independently represents hydrogen, a -Cl-6 straight or branched-chain alkyl group, a -C3-C6 cycloalkyl group or phenyl, or when two Rn groups are present, said Rn groups may be taken in combination and represent a 4-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, -C(O)-, NH and NCH3;
Q is selected from the group consisting of:
RxRyR2
Figure imgf000040_0001
wherein: a and b are 1, 2 or 3; L' is a pharmaceutically acceptable counterion; α represents O, S or NRS; β, δ, λ, μ and σ represent CR^, N or N+Rs, provided that no more than one of β, δ, λ, μ and σ is N+Rs;
R* is selected from the group consisting of:
Figure imgf000041_0001
wherein: d represents O, S or NRk; e, g, x, y and z represent CRm, N or N+Rk , provided that no more than one of e, g, x, y and z in any given structure represents N+Rk;
Rk represents hydrogen; -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or - (CH )nQ where n = 1, 2 or 3 and Q is as previously defined;
each Rm independently represents a member selected from the group consisting of: hydrogen; halo; -CN; -N02; -NRnR°; -ORn; - SRn; -CONRnRo; -COORh; -SORn; -SO2Rn; -SO2NRnR°; -NRnSO2R°; -
CORn; -NRnCORo; -OCORn; -OCONRnR°; -NRnCO2Rh; -NRnCONR°Rh; - OCO2Rh; -CNRnNR°Rh; -NRnCNHNR°Rh; -NRnC(NR°)R* ; -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; -C3-7 cycloalkyl, unsubstituted or substituted with one to four Ri groups; and -(CH )nQ where n and Q are as defined above;
Rn and R° represent hydrogen, phenyl; -Ci- straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups;
each Rs independently represents hydrogen; phenyl or -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; each Rt independently represents hydrogen; halo; phenyl; - CN; -N02; -NRuRv; -OR"; -SRU; -CONR"Rv; -COORh; -SORu; -SO2Ru; - SO2NRuRv; -NRuSO2Rv; -CORu; -NRuCORv; -OCORu; -OCONRuRv; - NRuCO2Rv; -NRuCONRvRw; -OCO2Rv; -Cl-6 straight- or branched- chain alkyl, unsubstituted or substituted with one to four Ri groups;
Ru and Rv represent hydrogen or -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or Ru and Rv together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one or more of O, S, NRW or -C(O)-, said ring being unsubstituted or substituted with one to four Ri groups;
each Rw independently represents hydrogen; -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; C3-6 cycloalkyl optionally substituted with one to four R1 groups; phenyl optionally substituted with one to four R1 groups, or heteroaryl optionally substituted with 1-4 R1 groups; or BP and Rw taken together with any intervening atoms represent a 5-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, NH or NCH3;
Rx represents hydrogen or a Ci-8 straight- or branched- chain alkyl, optionally interrupted by one or two of O, S, SO, SO2, NRW,
N+RnRw, or -C(O)-, said chain being unsubstituted or substituted with one to four of halo, CN, NO2, ORw, SRW, SORw, Sθ2Rw, NR^RW, N+(Rh)2Rw, -C(O)-Rw, C(O)NRhRw, SO2NRhRw, C02RW, OC(O)Rw, OC(0)NRhRw, NRhC(O)Rw, NRhC(0)NRhRw, or a phenyl or heteroaryl group which is in turn optionally substituted with from one to four R1 groups or with one to two Cl-3 straight- or branched- chain alkyl groups, said alkyl groups being unsubstituted or substituted with one to four R1 groups; Ry and Rz represent hydrogen; phenyl; -Cl-6 straight or branched chain alkyl, unsubstituted or substituted with one to four R1 groups, and optionally interrupted by O, S, NRW, N+RhRw or -C(O)-;
or Rx and RJ together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by O, S, SO2, NRW
, N+R^RW or -C(O)-, unsubstituted or substituted with 1 - 4 BΪ groups, and when Rx and Ry together represent a 4-6 membered ring as defined above, Rz is as defined above or Rz represents an additional saturated 4-6 membered ring fused to the ring represented by Rx and BJ taken together, optionally interrupted by O, S, NRW or -C(O)-, said rings being unsubstituted or substituted with one to four R1 groups,
comprising reacting a compound of formula 1:
Figure imgf000043_0001
wherein R3 is Cl, Br or I, with a naphthosultam of formula 5:
Figure imgf000043_0002
wherein R1 is as previously defined, to produce a compound of formula 4'.
4. A process of synthesizing a carbapenem compound of formula 6:
Figure imgf000044_0001
wherein R represents H or methyl, P and P* represent protecting groups and each R1 represents H, halo, OH, OP wherein P is a protecting group, -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Rd groups; and -C3-7 cycloalkyl, unsubstituted or substituted with one to four Rd groups; each Rd independently represents halo; OP, wherein P is a protecting group, -CN; -NO2; -NReRf; -ORg; -SRg; -CONReRf; -COORg; - SORg; -SO2Rg; -SO2NReRf; -NReSO2Rf; -CORe; -NRe CORf; -OCORe; - OCONReRf; -NReCONR^Rg; -NReCO2Rh; -OCO2Rh; -C(NRe)NRfRg; - NReC(NH)NRfRg; -NReC(NRf)Rg; -R* or -Q;
Re, Rf and Rg represent hydrogen; -R*; -Cl-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups; or Re and Rf taken together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one to three of O, S, -C(O)- or NRg with Rg as defined above, said ring being unsubstituted or substituted with one to four Ri groups; each Ri independently represents halo; -CN; -NO2; phenyl; -NHSO2R11; -ORh, -SRh; -N(Rh)2; -N+(Rh)3; -C(O)N(Rh)2; - SO2N(Rh)2; heteroaryl; heteroaryliu ; -CO2Rh; -C(O)Rh; -OCORh; - NHCORn; guanidinyl; carbamimidoyl or ureido;
each Rh independently represents hydrogen, a -Cl-6 straight or branched-chain alkyl group, a -C3-C6 cycloalkyl group or phenyl, or when two Rn groups are present, said Rn groups may be taken in combination and represent a 4-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, -C(O)-, NH and NCH3;
Q is selected from the group consisting of:
Rx and S Λ--NRxRyR2
Figure imgf000045_0001
wherein: a and b are 1, 2 or 3;
L" is a pharmaceutically acceptable counterion; α represents O, S or NRS; β, δ, λ, μ and σ represent CRt, N or N+Rs, provided that no more than one of β, δ, λ, μ and σ is N+Rs;
R* is selected from the group consisting of:
Figure imgf000045_0002
wherein: d represents O, S or NRk; e, g, x, y and z represent CRm, N or N+Rk , provided that no more than one of e, g, x, y and z in any given structure represents N+R ; Rk represents hydrogen; -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or - (CH2)nQ where n = 1, 2 or 3 and Q is as previously defined;
each Rm independently represents a member selected from the group consisting of: hydrogen; halo; -CN; -N02; -NRnR°; -ORn; - SRn; -CONRnR ; -COORh; -SORn; -SO2Rn; -SO2NR*R°; -NRnSO2R°; - CORn; -NRnCOR°; -OCORn; -OCONRnR°; -NRnCO2Rh; -NRnCONR°Rh; - OCO2Rh; -CNRnNRoRh; -NRnCNHNR°Rh; -NRnC(NRo)Rh; . ^Q straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; -C3-7 cycloalkyl, unsubstituted or substituted with one to four Ri groups; and -(CH2)nQ where n and Q are as defined above;
Rn and R° represent hydrogen, phenyl; -Cl-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four R groups;
each Rs independently represents hydrogen; phenyl or -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups;
each BP independently represents hydrogen; halo; phenyl; - CN; -NO2; -NRURV; -ORu; -SRU; -CONRuRv; -COORh; -SORu; -SO2Ru; - SO2NRuRV; -NRuSO2Rv; -CORu; -NRuCORv; -OCORU; -OCONRuRV; - NRuCO2Rv; -NRuCONRvRw; -OCO2Rv; -Cl-6 straight- or branched- chain alkyl, unsubstituted or substituted with one to four Ri groups;
Ru and Rv represent hydrogen or -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or Ru and Rv together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one or more of O, S, NRW or -C(O)-, said ring being unsubstituted or substituted with one to four Ri groups; each Rw independently represents hydrogen; -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; C3-6 cycloalkyl optionally substituted with one to four R1 groups; phenyl optionally substituted with one to four R1 groups, or heteroaryl optionally substituted with 1-4 R1 groups; or Rn and Rw taken together with any intervening atoms represent a 5-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, NH or NCH3;
Rx represents hydrogen or a Ci-8 straight- or branched- chain alkyl, optionally interrupted by one or two of O, S, SO, SO2, NRW, N+RhRW, or -C(O)-, said chain being unsubstituted or substituted with one to four of halo, CN, NO2, ORw, SRW, SORw, SO2 w, NRhR , N+(Rh)2R , -C(O)-Rw, C(0)NRhRw, SO2NRhRw, CO2Rw, OC(O)Rw,
OC(O)NRhRw, NRhC(O)Rw, NRhC(O)NRhRW, or a phenyl or heteroaryl group which is in turn optionally substituted with from one to four R1 groups or with one to two Cl-3 straight- or branched- chain alkyl groups, said alkyl groups being unsubstituted or substituted with one to four R1 groups;
Ry and Rz represent hydrogen; phenyl; -Cl-6 straight or branched chain alkyl, unsubstituted or substituted with one to four R1 groups, and optionally interrupted by O, S, NRW, N+RhRw or -C(O)-;
or Rx and J together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by O, S, SO2, NRW
, N+RnRw or -C(O)-, unsubstituted or substituted with 1 - 4 R groups, and when Rx and Ry together represent a 4-6 membered ring as defined above, Rz is as defined above or Rz represents an additional saturated 4-6 membered ring fused to the ring represented by Rx and Ry taken together, optionally interrupted by O, S, NRW or -C(O)-, said rings being unsubstituted or substituted with one to four Ri groups comprising reacting a compound of formula 4':
Figure imgf000048_0001
4'
with a carbapenem of formula 7:
Figure imgf000048_0002
wherein R, P and P* are as previously defined and L represents a leaving group, to produce a compound of formula 6.
5. A process in accordance with claim 3 wherein P represents a member selected from the group consisting of: TMS, TES, TBDMS, o-nitrobenzyloxycarbonyl, p-nitrobenzyloxycarbonyl, benzyloxycarbonyl, all loxycarbonyl, t-butyloxycarbonyl and 2,2,2- trichloroethyloxycarbonyl.
6. A process in accordance with claim 3 wherein P* represents a member selected from the group consisting of: allyl, benzhydryl, 2-naphthylmethyl, benzyl, silyl groups such as t-butyldimethylsilyl (TBDMS), trimethylsilyl, (TMS), triethylsilyl (TES-), phenacyl, p-methoxybenzyl, o-nitrobenzyl, p-methoxyphenyl, p- nitrobenzyl, 4-pyridylmethyl and t-butyl.
7. A process in accordance with claim 3 wherein R represents methyl.
8. A process in accordance with claim 3 wherein L represents a member selected from the group consisting of: OMs, OTs, OTf , halo and diphenylphosphonyl.
9. A process in accordance with claim 1 wherein R3 represents I and at least one R1 represents a -Cl-6 straight or branched chain alkyl group, substituted with one to four R^ groups, wherein one R°- group represents -R* or Q.
10. A process in accordance with claim 2 wherein R3 represents I and at least one R1 represents a -Cl-6 straight or branched chain alkyl group, substituted with one to four R" groups, wherein one R°- group represents -R* or Q.
11. A process in accordance with claim 3 wherein R represents I and at least one R1 represents a -Cl-6 straight or branched chain alkyl group, substituted with one to four R" groups, wherein one Rd group represents -R* or Q.
12. A process in accordance with claim 9 wherein R3 represents Cl and at least one R1 represents a -Cl-6 straight or branched chain alkyl group, substituted with one to four Ru groups, wherein one R" group represents -R* or Q.
13. A process in accordance with claim 10 wherein R3 represents Cl and at least one R1 represents a -Cl-6 straight or branched chain alkyl group, substituted with one to four B& groups, wherein one Rd group represents -R* or Q.
14. A process in accordance with claim 11 wherein R3 represents Cl and at least one R1 represents a -Cl-6 straight or branched chain alkyl group, substituted with one to four R°- groups, wherein one Rd group represents -R* or Q.
15. A process of synthesizing a carbapenem compound of formula 6:
Figure imgf000050_0001
wherein R represents H or methyl, P and P* represent protecting groups and each R1 represents H, halo, OH, OP wherein P is a protecting group,
-Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Rd groups; and -C3-7 cycloalkyl, unsubstituted or substituted with one to four Rd groups; each Rd independently represents halo; OP, wherein P is a protecting group, -CN; -NO2; -NReRf; -ORg; -SRg; -CONReRf; -COORg; -
SORg; -SO2Rg; -SO2NReRf; -NReSO2Rf; -CORe; -NRe CORf; -OCORe; -
OCONReRf; -NReCONRfRg; -NReCO2Rh; -OCO2Rh; -C(NRe)NR*Rg; -
NReC(NH)NRfRg; -NReC(NRf)Rg; -R* or -Q;
Re, R and Rg represent hydrogen; -R*; -Cl-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups; or Re and Rf taken together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one to three of O, S, -C(O)- or NRg with Rg as defined above, said ring being unsubstituted or substituted with one to four R1 groups;
each Ri independently represents halo; -CN; -NO2; phenyl; -NHSO2Rh; -ORh, -SRh; -N(Rh)2; -N+(Rh)3; -C(O)N(Rh)2; - SO2N(Rh)2; heteroaryl; heteroarylium; -CO2Rh; -C(O)Rh; -OCORh; - NHCOR"; guanidinyl; carbamimidoyl or ureido;
each Rn independently represents hydrogen, a -Cl-6 straight or branched-chain alkyl group, a -C3-C6 cycloalkyl group or phenyl, or when two BP groups are present, said BP groups may be taken in combination and represent a 4-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, -C(O)-, NH and NCH3;
Q is selected from the group consisting of:
RWR
Figure imgf000051_0001
wherein: a and b are 1, 2 or 3;
L" is a pharmaceutically acceptable counterion; α represents O, S or NRS; β, δ, λ, μ and σ represent CRt, N or N+Rs, provided that no more than one of β, δ, λ, μ and σ is N+Rs;
R* is selected from the group consisting of:
Figure imgf000051_0002
wherein: d represents O, S or NRk; e, g, x, y and z represent CRm, N or N+Rk , provided that no more than one of e, g, x, y and z in any given structure represents N+Rk; Rk represents hydrogen; -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or - (CH2)nQ where n = 1, 2 or 3 and Q is as previously defined;
each R independently represents a member selected from the group consisting of: hydrogen; halo; -CN; -NO ; -NRnR°; -ORn; - SRn; -CONRnR°; -COORh; -SORn; -SO2Rn; -SO2NRnR°; -NRnSO2R°; - CORn; -NRnCORo; -OCORn; -OCONRnR°; -NRnC02Rh; -NRnCONR°Rh; - OCO2Rh; -CNRnNR°Rh; -NRnCNHNR°Rh; -NRnC(NR°)Rh; -Cι_6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; -C3-7 cycloalkyl, unsubstituted or substituted with one to four Ri groups; and -(CH2)nQ where n and Q are as defined above;
Rn and R° represent hydrogen, phenyl; -Cl-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups;
each Rs independently represents hydrogen; phenyl or -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups;
each R* independently represents hydrogen; halo; phenyl; - CN; -NO2; -NRURV; -ORu; -SRU; -CONRuRv; -COORh; -SORU; -SO2Ru; - SO2NRuRv; -NRuSO2Rv; -CORu; -NRuCORv; -OCORu; -OCONRuRV; . NRuCO2Rv; -NRuCONRvRw; -OCO2Rv; -Cl-6 straight- or branched- chain alkyl, unsubstituted or substituted with one to four Ri groups;
Ru and Rv represent hydrogen or -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or Ru and Rv together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one or more of O, S, NRW or -C(O)-, said ring being unsubstituted or substituted with one to four R groups; each Rw independently represents hydrogen; -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; C3-6 cycloalkyl optionally substituted with one to four R1 groups; phenyl optionally substituted with one to four R1 groups, or heteroaryl optionally substituted with 1-4 R1 groups; or BP and Rw taken together with any intervening atoms represent a 5-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, NH or NCH3;
Rx represents hydrogen or a Cl-8 straight- or branched- chain alkyl, optionally interrupted by one or two of O, S, SO, SO2, NRW, N+RhR , or -C(O)-, said chain being unsubstituted or substituted with one to four of halo, CN, NO2, ORw, SRW, SORw, SO2Rw, NR^R , N+(Rh)2R , -C(O)-Rw, C(O)NRhRw, SO2NRhRw, CO2Rw, OC(O)Rw,
OC(O)NRhRW, NRhC(O)RW, NRhC(O)NRhRw, or a phenyl or heteroaryl group which is in turn optionally substituted with from one to four R1 groups or with one to two Cl-3 straight- or branched- chain alkyl groups, said alkyl groups being unsubstituted or substituted with one to four R1 groups;
R and Rz represent hydrogen; phenyl; -Cl-6 straight or branched chain alkyl, unsubstituted or substituted with one to four R1 groups, and optionally interrupted by O, S, NRW, N+RhRw or -C(O)-;
or Rx and Ry together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by O, S, SO2, NRW
, N+RhRW or -C(O)-, unsubstituted or substituted with 1 - 4 R1 groups, and when Rx and RJ together represent a 4-6 membered ring as defined above, Rz is as defined above or Rz represents an additional saturated 4-6 membered ring fused to the ring represented by Rx and Ry taken together, optionally interrupted by O, S, NRW or -C(O)-, said rings being unsubstituted or substituted with one to four Ri groups comprising reacting a compound of formula 4':
Figure imgf000054_0001
4'
with a compound of formula 9:
Figure imgf000054_0002
wherein R, P and P* are as previously defined, PΛ represents a protecting group or hydrogen and L represents a leaving group, in the presence of a catalyst and metal halide, contacting the mixture with a base and triflating agent and reacting the resulting solution with a palladium catalyst in the presence of a ligand to produce a compound of formula 6.
16. A process according to claim 15 wherein the rhodium catalyst is selected from rhodium octanoate and rhodium acetate, the metal halide is selected from zinc bromide, and zinc chloride, the base is selected from diisopropyl amine, t-butyl amine,
2,2,6,6,tetramethylpiperidine, methylamine, hexylamine, ethylamine, triethylamine, diisopropylethylamine, trimethylamine, ethyldimethylamine, tri-n-propylamine, l,8-diazabicyclo[5.4.0]undec-7- ene (DBU), pyridine, imidazole, lutidine, collidine, 4- dimethylaminomethyl-pyridine, N,N,N',N'-tetramethylethylenediamine (TMEDA) and N-methylmorpholine (NMM), the triflating agent is trifluoromethanesulfonic anhydride, the palladium catalyst is selected from Pd(OAc)2, Pd(PPh3)4 PdCl2, PdCl2(PPh3)2, PdCl2(CH3CN)2, Pd2(dba)3, Pd2(dba)3CHCl3, and Pd(dba)2„ and the ligand is selected from triphenyl phosphine, tris-2-furyl phosphine, and triphenyl arsine.
17. A compound represented by one of the following formulas:
Figure imgf000055_0001
wherein R3 is Cl, Br or I;
Figure imgf000055_0002
wherein X represents O or NH and Y represents H or a protecting group, or X and Y taken in combination represent a ring system containing from 0-3 nitrogen atoms and 0-2 heteroatoms selected from O, S, S(O) and S(O)2, said ring system having 1-4 rings, with from 5-16 atoms, said system being non-aromatic, partially aromatic or aromatic, and being unsubstituted or substituted with from 1-3 groups selected from halo, OH, OP, wherein P is a protecting group, Cl-6 alkyl and Cl-6 alkyl substituted with from 1-3 of halo, OH, OP, NH2, NHC1 alkyl and N(CM alkyl)2
Figure imgf000056_0001
or
wherein each R1 represents H, halo, OH, OP wherein P is a protecting group, -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Rd groups; and -C3_7 cycloalkyl, unsubstituted or substituted with one to four Rd groups; each Rd independently represents halo; OP, wherein P is a protecting group, -CN; -N02; -NReRf; -ORg; -SRg; -CONReRf; -COORg; - SORg; -SO2Rg; -SO2NReRf; -NReSO2Rf; -CORe; -NRe CORf; -OCORe; - OCONReRf; -NReCONRfRg; -NReC02Rh; -OCO2Rh; -C(NRe)NRfRg; - NReC(NH)NRfRg; -NReC(NRf)Rg; -R* or -Q;
Re, Rf and Rg represent hydrogen; -R*; -Cl-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four Ri groups; or Re and Rf taken together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one to three of O, S, -C(O)- or NRg with Rg as defined above, said ring being unsubstituted or substituted with one to four Ri groups;
each Ri independently represents halo; -CN; -Nθ2; phenyl; -NHSθ2Rh; -ORh, -SRh; -N(Rh)2; -N+(Rh)3; -C(0)N(Rh)2; - SO2N(Rh)2; heteroaryl; heteroarylium; -CO2Rh; -C(0)Rh; -OCORh; - NHCORh; guanidinyl; carbamimidoyl or ureido;
each BP independently represents hydrogen, a -Cl-6 straight or branched-chain alkyl group, a -C3-C6 cycloalkyl group or phenyl, or when two BP groups are present, said Rn groups may be taken in combination and represent a 4-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, -C(O)-, NH and NCH3;
Q is selected from the group consisting of:
Figure imgf000057_0001
wherein: a and b are 1, 2 or 3;
L" is a pharmaceutically acceptable counterion; represents O, S or NRS; β, δ, λ, μ and σ represent CRt, N or N+Rs, provided that no more than one of β, δ, λ, μ and σ is N+Rs;
R* is selected from the group consisting of:
Figure imgf000057_0002
wherein: d represents O, S or NRk; e, g, x, y and z represent CRm, N or N+Rk , provided that no more than one of e, g, x, y and z in any given structure represents N+Rk;
Rk represents hydrogen; -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or - (CH )nQ where n = 1, 2 or 3 and Q is as previously defined;
each Rm independently represents a member selected from the group consisting of: hydrogen; halo; -CN; -N02; -NRnR°; -ORn; - SRn; -CONRnR°; -COORh; _S0Rn; -S02Rn; -S02NRnR»; -NRnS02R°; - CORn; -NRnCORo; -OCORn; -OCONRnR°; -NRnC02Rh; -NRnCONRoRh; - OCO2Rh; -CNRnNRoRh; -NRnCNHNRoRh; -NRnC(NRo)Rh; -Ci-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four R groups; -C3-7 cycloalkyl, unsubstituted or substituted with one to four Ri groups; and -(CH2)nQ where n and Q are as defined above;
Rn and R° represent hydrogen, phenyl; -Cl-6 straight- or branched-chain alkyl unsubstituted or substituted with one to four R groups;
each Rs independently represents hydrogen; phenyl or -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups;
each R independently represents hydrogen; halo; phenyl; - CN; -NO2; -NRURV; -OR"; -SRU; -CONRuRv; -COORh; -SORu; -SO2Ru; - SO2NRuRv; -NRuSO2Rv; -CORu; -NRuCORv; -OCORu; -OCONRuRv; - NRuCO2Rv; -NRuCONRvRw; -OCO2Rv; -Cl-6 straight- or branched- chain alkyl, unsubstituted or substituted with one to four Ri groups;
Ru and Rv represent hydrogen or -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; or Ru and Rv together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by one or more of O, S, NRW or -C(O)~, said ring being unsubstituted or substituted with one to four Ri groups;
each Rw independently represents hydrogen; -Cl-6 straight- or branched-chain alkyl, unsubstituted or substituted with one to four Ri groups; C3-6 cycloalkyl optionally substituted with one to four R1 groups; phenyl optionally substituted with one to four R1 groups, or heteroaryl optionally substituted with 1-4 R1 groups; or BP and Rw taken together with any intervening atoms represent a 5-6 membered saturated ring, optionally interrupted by one or two of O, S, SO2, NH or NCH3; Rx represents hydrogen or a Ci-8 straight- or branched- chain alkyl, optionally interrupted by one or two of O, S, SO, SO2, NRW,
N+R"RW, or -C(O)-, said chain being unsubstituted or substituted with one to four of halo, CN, NO2, ORw, SRW, SOR , SO2Rw, NRhRw, N+(Rh)2Rw, -C(O)-Rw, C(O)NRhR , Sθ2NRhRw, Cθ2Rw, OC(O)Rw, OC(O)NRhRW, NRhC(O)Rw, NRhC(O)NRhRw, or a phenyl or heteroaryl group which is in turn optionally substituted with from one to four R1 groups or with one to two Cl-3 straight- or branched- chain alkyl groups, said alkyl groups being unsubstituted or substituted with one to four R1 groups;
Ry and Rz represent hydrogen; phenyl; -Cl-6 straight or branched chain alkyl, unsubstituted or substituted with one to four R1 groups, and optionally interrupted by O, S, NRW, N+R^Rw or -C(O)-;
or Rx and RJ together with any intervening atoms represent a 4-6 membered saturated ring optionally interrupted by O, S, SO2, NRW
, N+R^RW or -C(O)-, unsubstituted or substituted with 1 - 4 R* groups, and when Rx and RJ together represent a 4-6 membered ring as defined above, Rz is as defined above or Rz represents an additional saturated 4-6 membered ring fused to the ring represented by Rx and RJ taken together, optionally interrupted by O, S, NRW or -C(O)-, said rings being unsubstituted or substituted with one to four Ri groups.
18. A compound having the following structure:
Figure imgf000059_0001
Figure imgf000060_0001
Figure imgf000060_0002
Figure imgf000060_0003
Figure imgf000061_0001
PCT/US1998/020830 1997-10-07 1998-10-02 Process for the synthesis of carbapenem intermediates, and compounds produced WO1999018078A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU96813/98A AU737447B2 (en) 1997-10-07 1998-10-02 Process for the synthesis of carbapenem intermediates, and compounds produced
EP98950888A EP1023271A4 (en) 1997-10-07 1998-10-02 Process for the synthesis of carbapenem intermediates, and compounds produced
JP2000514889A JP2001519332A (en) 1997-10-07 1998-10-02 Method for synthesizing carbapenem intermediate and compound produced
CA002305404A CA2305404A1 (en) 1997-10-07 1998-10-02 Process for the synthesis of carbapenem intermediates, and compounds produced

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US6123397P 1997-10-07 1997-10-07
US60/061,233 1997-10-07
GB9806031.2 1998-03-20
GBGB9806031.2A GB9806031D0 (en) 1998-03-20 1998-03-20 Process for the synthesis of carbapenem intermediates, and compounds produced

Publications (1)

Publication Number Publication Date
WO1999018078A1 true WO1999018078A1 (en) 1999-04-15

Family

ID=26313326

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/020830 WO1999018078A1 (en) 1997-10-07 1998-10-02 Process for the synthesis of carbapenem intermediates, and compounds produced

Country Status (5)

Country Link
EP (1) EP1023271A4 (en)
JP (1) JP2001519332A (en)
AU (1) AU737447B2 (en)
CA (1) CA2305404A1 (en)
WO (1) WO1999018078A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000015644A1 (en) * 1998-09-15 2000-03-23 Merck & Co., Inc. Process for the synthesis of tin carbapenem intermediates

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108990A (en) * 1975-06-14 1978-08-22 Schering Aktiengesellschaft Method of killing bacteria and fungi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108990A (en) * 1975-06-14 1978-08-22 Schering Aktiengesellschaft Method of killing bacteria and fungi

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
JURKSCHAT K., TZSCHACH A.: "1-AZA-5-STANNA-5,5-DIMETHYLBICYCLOÚ3.3.01.5¾OCTAN UND 1-AZA-5-STANNA-5-METHYLTRICYCLOÚ3.3.3.01.5¾ UNDECAN, PENTAKOORDINIERTE TETRAORGANOZINNVERBINDUNGEN.", JOURNAL OF ORGANOMETALLIC CHEMISTRY., ELSEVIER-SEQUOIA S.A. LAUSANNE., CH, vol. 272., 1 January 1984 (1984-01-01), CH, pages C13 - C16., XP002915399, ISSN: 0022-328X, DOI: 10.1016/0022-328X(84)80450-7 *
JURKSCHAT K., TZSCHACH A.: "CRYSTAL AND MOLECULAR STRUCTURE OF 1-AZA-5-STANNA-5-STANNA-5- CHLOROTRICYCLOÚ3.3.3.01.5 JUNDECANE, A 2,8,9-TRICARBASTANNATRANE.", JOURNAL OF ORGANOMETALLIC CHEMISTRY., ELSEVIER-SEQUOIA S.A. LAUSANNE., CH, vol. 290., no. 03., 6 August 1985 (1985-08-06), CH, pages 285 - 289., XP002915400, ISSN: 0022-328X, DOI: 10.1016/0022-328X(85)87291-0 *
KOLB U., ET AL.: "UNUSUAL HEXACOORDINATION IN A TRIORGANOTIN FLUORIDE SUPPORTED BY INTERMOLECULAR HYDROGEN BONDS. CRYSTAL AND MOLECULAR STRUCTURES OF 1-AZA-5-STANNA-5-HALOGENOTRICYCLOÚ3.3.3.01.5¾UNDECANES N (CH2CH2CH2)3SNF.H2O AND ((CH2CH2CH2)3SNX (X=CL,BR,I)", ORGANOMETALLICS, AMERICAN CHEMICAL SOCIETY, US, vol. 14., no. 06., 1 June 1995 (1995-06-01), US, pages 2827 - 2834., XP002915402, ISSN: 0276-7333, DOI: 10.1021/om00006a031 *
See also references of EP1023271A4 *
VEDEJA E., HAIGHT A. R., MOSS W. O.: "INTERNAL COORDINATION AT TIN PROMOTES SELECTIVE ALKYL TRANSFER IN THE STILLE COUPLING REACTION.", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMERICAN CHEMICAL SOCIETY, US, vol. 114., no. 16., 29 July 1992 (1992-07-29), US, pages 6556 - 6558., XP002915401, ISSN: 0002-7863, DOI: 10.1021/ja00042a044 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000015644A1 (en) * 1998-09-15 2000-03-23 Merck & Co., Inc. Process for the synthesis of tin carbapenem intermediates

Also Published As

Publication number Publication date
AU9681398A (en) 1999-04-27
CA2305404A1 (en) 1999-04-15
EP1023271A4 (en) 2001-09-12
AU737447B2 (en) 2001-08-23
JP2001519332A (en) 2001-10-23
EP1023271A1 (en) 2000-08-02

Similar Documents

Publication Publication Date Title
EP0444889A1 (en) Novel synthesis of carbapenem intermediates
EP0906313B1 (en) Carbapenem antibacterial compounds, compositions containing such compounds and methods of treatment
US5369102A (en) 2-substituted alkyl-3-carboxy carbopenems as antibiotics and a method of producing them
SE461734B (en) NEW CARBAPENEM ANTIBIOTICS AND PROCEDURES FOR PREPARING THEREOF
US6235898B1 (en) Process for the synthesis of carbapenem intermediated and compounds produced
AU737447B2 (en) Process for the synthesis of carbapenem intermediates, and compounds produced
US5426104A (en) Tricyclic carbapenem compounds, methods of preparation and methods of use
US6194568B1 (en) Process for synthesizing carbapenem intermediates
US5162314A (en) 2-benzocoumarinyl carbapenems
EP0937078B1 (en) Tricyclic carbapenem compounds
US6531466B2 (en) Tricyclic carbapenem compounds
JP4213229B2 (en) Method for producing azetidinone derivative
US5196529A (en) 2-phenanthrenyl carbapenem intermediates
EP0515217A1 (en) 2-Benzocoumarinyl carbapenems
US6489471B1 (en) Process for the synthesis of carbapenem intermediates, and compounds produced
JP2002518498A (en) Naphtho [1,8-de] thiazin-2-ylmethylcarbapenem antibacterial
EP0466253A1 (en) 2-naphthyl-carbapenems
JPH08134075A (en) New carbapenem derivative
EP0464901A2 (en) 2-phenanthrenyl carbapenems
JPH0717980A (en) Carbapenem derivative or salt thereof
WO2001000624A1 (en) Synthetic process for naphthosultam carbapenems
EP1076058A1 (en) $g(b)-LACTAM COMPOUNDS AND PROCESS FOR PRODUCING THE SAME
JP2002518496A (en) (Heterocycle) methyl-substituted carbapenemcarbapenem antibacterial

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AU AZ BA BB BG BR BY CA CN CU CZ EE GD GE HR HU ID IL IS JP KG KR KZ LC LK LR LT LV MD MG MK MN MX NO NZ PL RO RU SG SI SK SL TJ TM TR TT UA US UZ VN YU

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 96813/98

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 09509432

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2305404

Country of ref document: CA

Ref country code: CA

Ref document number: 2305404

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 1998950888

Country of ref document: EP

ENP Entry into the national phase

Ref country code: JP

Ref document number: 2000 514889

Kind code of ref document: A

Format of ref document f/p: F

NENP Non-entry into the national phase

Ref country code: KR

WWP Wipo information: published in national office

Ref document number: 1998950888

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 96813/98

Country of ref document: AU

WWW Wipo information: withdrawn in national office

Ref document number: 1998950888

Country of ref document: EP