WO1995002582A1 - Cyclic hydrazine compounds - Google Patents
Cyclic hydrazine compounds Download PDFInfo
- Publication number
- WO1995002582A1 WO1995002582A1 PCT/EP1994/002235 EP9402235W WO9502582A1 WO 1995002582 A1 WO1995002582 A1 WO 1995002582A1 EP 9402235 W EP9402235 W EP 9402235W WO 9502582 A1 WO9502582 A1 WO 9502582A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- acid
- lower alkyl
- phenyl
- compound
- Prior art date
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- -1 Cyclic hydrazine compounds Chemical class 0.000 title claims abstract description 515
- 150000001875 compounds Chemical class 0.000 claims abstract description 315
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 97
- 150000003839 salts Chemical class 0.000 claims abstract description 96
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 55
- 239000001257 hydrogen Substances 0.000 claims abstract description 54
- 125000004093 cyano group Chemical group *C#N 0.000 claims abstract description 36
- 125000002252 acyl group Chemical group 0.000 claims abstract description 25
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 19
- 125000000547 substituted alkyl group Chemical group 0.000 claims abstract description 15
- 125000003342 alkenyl group Chemical group 0.000 claims abstract description 13
- 125000004104 aryloxy group Chemical group 0.000 claims abstract description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 249
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 80
- 238000000034 method Methods 0.000 claims description 75
- 239000002253 acid Substances 0.000 claims description 62
- 125000001589 carboacyl group Chemical group 0.000 claims description 56
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 54
- 229910052736 halogen Inorganic materials 0.000 claims description 53
- 230000008569 process Effects 0.000 claims description 52
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 49
- 125000001424 substituent group Chemical group 0.000 claims description 48
- 125000006239 protecting group Chemical group 0.000 claims description 46
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 45
- 150000002367 halogens Chemical group 0.000 claims description 44
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims description 44
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 41
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- 125000000623 heterocyclic group Chemical group 0.000 claims description 24
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 24
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- 229940045681 other alkylating agent in atc Drugs 0.000 description 1
- 125000003431 oxalo group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- 125000005740 oxycarbonyl group Chemical group [*:1]OC([*:2])=O 0.000 description 1
- 125000006503 p-nitrobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1[N+]([O-])=O)C([H])([H])* 0.000 description 1
- WLJNZVDCPSBLRP-UHFFFAOYSA-N pamoic acid Chemical compound C1=CC=C2C(CC=3C4=CC=CC=C4C=C(C=3O)C(=O)O)=C(O)C(C(O)=O)=CC2=C1 WLJNZVDCPSBLRP-UHFFFAOYSA-N 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000000137 peptide hydrolase inhibitor Substances 0.000 description 1
- 238000010647 peptide synthesis reaction Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000002993 phenylalanine derivatives Chemical class 0.000 description 1
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- UXCDUFKZSUBXGM-UHFFFAOYSA-N phosphoric tribromide Chemical compound BrP(Br)(Br)=O UXCDUFKZSUBXGM-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-N picric acid Chemical class OC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- UERQMZVFUXRQOD-UHFFFAOYSA-N piperidine-1-carbothioamide Chemical compound NC(=S)N1CCCCC1 UERQMZVFUXRQOD-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 description 1
- NTTOTNSKUYCDAV-UHFFFAOYSA-N potassium hydride Chemical compound [KH] NTTOTNSKUYCDAV-UHFFFAOYSA-N 0.000 description 1
- 229910000105 potassium hydride Inorganic materials 0.000 description 1
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 229940116317 potato starch Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000001500 prolyl group Chemical group [H]N1C([H])(C(=O)[*])C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000005400 pyridylcarbonyl group Chemical group N1=C(C=CC=C1)C(=O)* 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229940100486 rice starch Drugs 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- QWAXKHKRTORLEM-UGJKXSETSA-N saquinavir Chemical compound C([C@@H]([C@H](O)CN1C[C@H]2CCCC[C@H]2C[C@H]1C(=O)NC(C)(C)C)NC(=O)[C@H](CC(N)=O)NC(=O)C=1N=C2C=CC=CC2=CC=1)C1=CC=CC=C1 QWAXKHKRTORLEM-UGJKXSETSA-N 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000005930 sec-butyloxycarbonyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(OC(*)=O)C([H])([H])[H] 0.000 description 1
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 1
- UQDJGEHQDNVPGU-UHFFFAOYSA-N serine phosphoethanolamine Chemical compound [NH3+]CCOP([O-])(=O)OCC([NH3+])C([O-])=O UQDJGEHQDNVPGU-UHFFFAOYSA-N 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000008159 sesame oil Substances 0.000 description 1
- 235000011803 sesame oil Nutrition 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 238000006884 silylation reaction Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- BEOOHQFXGBMRKU-UHFFFAOYSA-N sodium cyanoborohydride Chemical compound [Na+].[B-]C#N BEOOHQFXGBMRKU-UHFFFAOYSA-N 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007901 soft capsule Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229960004793 sucrose Drugs 0.000 description 1
- 150000003459 sulfonic acid esters Chemical class 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 125000006318 tert-butyl amino group Chemical group [H]N(*)C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- ONWQGXWSSLUZOC-UHFFFAOYSA-N tert-butyl n-(cyclohexylmethylamino)carbamate Chemical compound CC(C)(C)OC(=O)NNCC1CCCCC1 ONWQGXWSSLUZOC-UHFFFAOYSA-N 0.000 description 1
- ZJTYRNPLVNMVPQ-GFCCVEGCSA-N tert-butyl n-[(2r)-1-oxo-3-phenylpropan-2-yl]carbamate Chemical compound CC(C)(C)OC(=O)N[C@@H](C=O)CC1=CC=CC=C1 ZJTYRNPLVNMVPQ-GFCCVEGCSA-N 0.000 description 1
- ZJTYRNPLVNMVPQ-LBPRGKRZSA-N tert-butyl n-[(2s)-1-oxo-3-phenylpropan-2-yl]carbamate Chemical compound CC(C)(C)OC(=O)N[C@H](C=O)CC1=CC=CC=C1 ZJTYRNPLVNMVPQ-LBPRGKRZSA-N 0.000 description 1
- POKKJVNZXJKYSS-UHFFFAOYSA-N tert-butyl n-[(4-cyanophenyl)methylamino]carbamate Chemical compound CC(C)(C)OC(=O)NNCC1=CC=C(C#N)C=C1 POKKJVNZXJKYSS-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- WHRNULOCNSKMGB-UHFFFAOYSA-N tetrahydrofuran thf Chemical compound C1CCOC1.C1CCOC1 WHRNULOCNSKMGB-UHFFFAOYSA-N 0.000 description 1
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 125000005301 thienylmethyl group Chemical group [H]C1=C([H])C([H])=C(S1)C([H])([H])* 0.000 description 1
- 150000003555 thioacetals Chemical class 0.000 description 1
- 238000007079 thiolysis reaction Methods 0.000 description 1
- HFRXJVQOXRXOPP-UHFFFAOYSA-N thionyl bromide Chemical compound BrS(Br)=O HFRXJVQOXRXOPP-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 235000010487 tragacanth Nutrition 0.000 description 1
- 239000000196 tragacanth Substances 0.000 description 1
- 229940116362 tragacanth Drugs 0.000 description 1
- DPUOLQHDNGRHBS-MDZDMXLPSA-N trans-Brassidic acid Chemical compound CCCCCCCC\C=C\CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-MDZDMXLPSA-N 0.000 description 1
- ODLHGICHYURWBS-LKONHMLTSA-N trappsol cyclo Chemical compound CC(O)COC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](COCC(C)O)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](COCC(C)O)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](COCC(C)O)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](COCC(C)O)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)COCC(O)C)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1COCC(C)O ODLHGICHYURWBS-LKONHMLTSA-N 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- 229940078499 tricalcium phosphate Drugs 0.000 description 1
- 235000019731 tricalcium phosphate Nutrition 0.000 description 1
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 229940038773 trisodium citrate Drugs 0.000 description 1
- YFNGWGVTFYSJHE-UHFFFAOYSA-K trisodium;phosphonoformate Chemical compound [Na+].[Na+].[Na+].OP(O)(=O)C([O-])=O.OP(O)(=O)C([O-])=O.OP(O)(=O)C([O-])=O YFNGWGVTFYSJHE-UHFFFAOYSA-K 0.000 description 1
- 239000012588 trypsin Substances 0.000 description 1
- 125000001493 tyrosinyl group Chemical group [H]OC1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])(N([H])[H])C(*)=O 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000029812 viral genome replication Effects 0.000 description 1
- 230000029302 virus maturation Effects 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 229940100445 wheat starch Drugs 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229960000523 zalcitabine Drugs 0.000 description 1
- HBOMLICNUCNMMY-XLPZGREQSA-N zidovudine Chemical compound O=C1NC(=O)C(C)=CN1[C@@H]1O[C@H](CO)[C@@H](N=[N+]=[N-])C1 HBOMLICNUCNMMY-XLPZGREQSA-N 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- OENHQHLEOONYIE-JLTXGRSLSA-N β-Carotene Chemical compound CC=1CCCC(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C OENHQHLEOONYIE-JLTXGRSLSA-N 0.000 description 1
- ORQXBVXKBGUSBA-QMMMGPOBSA-N β-cyclohexyl-alanine Chemical compound OC(=O)[C@@H](N)CC1CCCCC1 ORQXBVXKBGUSBA-QMMMGPOBSA-N 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
- C07D285/36—Seven-membered rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
- A61P31/18—Antivirals for RNA viruses for HIV
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D255/00—Heterocyclic compounds containing rings having three nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D249/00 - C07D253/00
- C07D255/02—Heterocyclic compounds containing rings having three nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D249/00 - C07D253/00 not condensed with other rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
- C07F9/6581—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and nitrogen atoms with or without oxygen or sulfur atoms, as ring hetero atoms
- C07F9/6584—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and nitrogen atoms with or without oxygen or sulfur atoms, as ring hetero atoms having one phosphorus atom as ring hetero atom
- C07F9/65848—Cyclic amide derivatives of acids of phosphorus, in which two nitrogen atoms belong to the ring
Definitions
- the invention relates to derivatives of cyclic hydrazines and salts thereof, to processes for the preparation of those compounds and salts thereof, to pharmaceutical compositions comprising those compounds or salts thereof, and to the use of those compounds or salts thereof in the therapeutic or diagnostic treatment of the human or animal body or in the preparation of pharmaceutical compositions.
- retroviral diseases such as AIDS
- retroviral diseases such as AIDS
- retroviral diseases such as AIDS
- retroviral diseases such as AIDS
- AIDS has involved principally the use of inhibitors of reverse transcriptase, an enzyme active in the conversion of retroviral RNA into DNA, such as 3 '-azido-3' -deoxythymidine (AZT) or dideoxyinosine (DDI), and also trisodium phosphonoformate, ammonium 21-tungsto-9-ant_ ⁇ nonate, 1- ⁇ -D-ribofuran- oxyl-l,2,4-triazole-3-carboxamides and dideoxycytidine as well as adriamycin.
- ZTT 3 '-azido-3' -deoxythymidine
- DI dideoxyinosine
- ammonium 21-tungsto-9-ant_ ⁇ nonate 1- ⁇ -D-ribofuran- oxyl-l,2,4-triazo
- T4-cell receptor which is present in certain cells of the defence system of the human body and which is responsible for the anchoring and introd ⁇ uction of infectious virus particles into those cells and thus for their infection.
- the desired result is that binding sites for the virus would be titrated out and the virions would there ⁇ fore no longer be able to bind to the cells.
- Compounds, such as polymannoacetate, that prevent the penetration of the virus through the cell membrane by other methods, are also, used.
- the proteolytic maturation for example of the core proteins of the virus, is brought about by an aspartate protease, such as HIV-protease. Without that proteolytic maturation, it is not possible for infectious virus particles to be formed. Owing to the central role played by the mentioned aspartate proteases, such as HLV-1- and HIV-2-protease, in virus maturation, and on the basis of experimental results, for example using infected cell cultures, it is assumed that effective inhibition of the maturation step effected by that protease in vivo will suppress the assembly of mature virions. Corresponding inhibitors can accordingly be used therapeut- ically.
- the aim of the present invention is to provide a novel class of compounds having favourable pharmacological properties.
- the compounds according to the invention are compounds having the formula I
- R_ is hydrogen or acyl
- R 2 , R 3 , R 4 and R 5 are each independently of the others unsubstituted or substituted alkyl or alkenyl, and
- R 6 being unsubstituted or substituted alkyl
- R 7 being hydrogen, unsubstituted or substituted alkyl, hydroxy, amino, alkyloxy, cyano or aryloxy, and salts thereof.
- the carbon atoms carrying the radical R r O- and the radical R 2 in compounds of formula I may, because they are centres of asymmetry, be in the (R)-, (S)- or (R,S)-configuration, as may any other asymmetrical carbon atoms present in the substituents. Accordingly, the compounds of formula I may be in the form of mixtures of isomers or pure isomers, especially in the form of mixtures of diastereoisomers, mixtures of enantiomers, such as racemates, or pure enantiomers.
- radicals are as defined for compounds of formula I.
- the present invention relates also to all stable isomers of compounds of formula I.
- Stable compounds are to be understood as being those compounds which are sufficiently stable to allow isolation from a reaction mixture with a usable degree of purity and to allow the formulation of a pharmaceutical composition.
- lower denotes a radical having up to and including a maximum of 7, especially up to and including a maximum of 4, carbon atoms, more especially having up to 2 carbon atoms.
- carbon atoms are present and in the case of lower alkenoyl or lower alkynoyl from 3 to 7, preferably 3 or 4, carbon atoms are present.
- lower alkyl, lower alkanoyl, lower alkenyl and lower alkenoyl may be unbranched or branched.
- Acyl Ri is preferably an acyl radical that has up to 25, preferably up to 19, carbon atoms and that is bonded via its carbonyl group to the bonding oxygen atom, and is especially the acyl radical of an unsubstituted or substituted alkanoic, alkenoic or alkynoic acid; or of an unsubstituted or substituted amino acid; or is also an aminocarbonyl group, an N-substit- uted aminocarbonyl group or an acyl radical of a semiester of carbonic acid bonded via its carbonyl group to the bonding oxygen atom.
- a preferred acyl group Rj of a carboxylic acid is, for example, unsubstituted C ⁇ C ⁇ o- alkanoyl, C 3 -C 2 oalkenoyl or or substituted C 1 -C 2 oalkanoyl, C 3 -C 2 o- alkenoyl or C 3 -C 2 oalkynoyl, especially lower alkanoyl, such as formyl, acetyl, propionyl, butyryl, methylpropionyl, pentenoyl, pivaloyl, valeroyl or heptanoyl, octanoyl, nonanoyl, decanoyl, undecanoyl, dodecanoyl, palmitoyl, lower alkenoyl, lower alkynoyl, or substitu ⁇ ted lower alkanoyl wherein the substituents are selected, for example, from one or more radicals, preferably from up to three radicals,
- Preferred acyl R j of an acyl radical of a semiester of carbonic acid bonded via its carbonyl group to the bonding oxygen atom is, for example, unsubstituted or substituted alkyloxy- carbonyl, especially unsubstituted or substituted lower alkoxycarbonyl, for example methoxy-, ethoxy- or tert-lower alkoxy-carbonyl, such as tert-butoxycarbonyl, 2-halo-lower alkoxycarbonyl, for example 2-chloro-, 2-bromo-, 2-iodo- or 2,2,2-trichloro- ethoxycarbonyl; aryl-lower alkoxycarbonyl, for example arylmethoxy-carbonyl, wherein aryl has preferably from 6 to 14 carbon atoms, is unsubstituted or mono- or poly-substit ⁇ uted, preferably mono-substituted, for example by a substituent selected from lower al
- acyl groups R j of a semiester of carbonic acid may preferably be omitted from any of the definitions of compounds of formula I mentioned hereinbefore and hereinafter.
- a preferred N-substituted aminocarbonyl group as acyl R j carries at the nitrogen atom 1 or 2 substituents selected independently of one another from unsubstituted or substituted lower alkyl, wherein the substituents of lower alkyl are selected from those mentioned above for substituted lower alkanoyl R j and may be present in the number defined there, preferably substituents selected from hydroxy, lower alkoxy, lower alkanoyloxy, phenyl- lower alkanoyloxy, such as benzoyloxy or phenylacetyloxy, halogen, such as fluorine, chlorine, bromine or iodine, especially fluorine or chlorine, carboxy, lower alkoxy ⁇ carbonyl, phenyl-lower alkoxycarbonyl, such as benzyloxycarbonyl, cyano, oxo and phenyl or naphthyl each of which is unsubstituted or mono- or poly-substituted, preferably
- acyl groups Rj of an N-substituted carbamic acid and the radical aminocarbonyl Rj may preferably be omitted from any of the definitions of compounds of formula I mentioned hereinbefore and hereinafter.
- acyl R l5 is preferably formed by the amino acid residues (aminoacyl), bonded via the carbonyl of their carboxy group to the oxygen atom that binds R j (instead of the hydroxy group in the carboxy group of the amino acid concerned), of an ⁇ -, ⁇ -, ⁇ - oder ⁇ -amino acid, especially of a natural ⁇ -amino acid having the L-configuration, such as normally occurs in proteins, or of an epimer of such an amino acid, i.e.
- amino acid residue prolyl (from proline, (H-Pro-OH)) already mentioned as acyl group of a carboxylic acid, and the derivatives thereof mentioned there, also belong to the mentioned amino acid residues but, in order to avoid overlapping definitions, they are not included here in the definition of amino acid residues if they are defined elsewhere.
- amino acid residues may be substituted at free amino or hydroxy functions by one of the radicals defined above in the definition of R ⁇ as acyl radical of an unsubstituted or substituted alkanoic, alkenoic or alkynoic acid; as an aminocarbonyl group, an N-substit ⁇ uted aminocarbonyl group or as an acyl radical of a semiester of carbonic acid bonded via its carbonyl group to the bonding oxygen atom, or by unsubstituted or substituted lower alkyl, as defined below for R 6 .
- acyl groups R j of an unsubstituted or substituted amino acid selected from aminoacetyl (glycyl), N-lower alkylaminoacetyl, N,N-di-lower alkylaminoacetyl, N-lower alkyl-N-phenyl-lower alkylaminoacetyl, N-lower alkyl-N-lower alkoxycarbonylaminoacetyl and N-phenyl-lower alkoxycarbonyl-N-lower alkylaminoacetyl, for example N-methylaminoacetyl, N,N-dimethylaminoacetyl, N-methyl-N-(n-butyl)aminoacetyl, 4-(N,N-dimethylamino)butyryl or N-methyl-N-benzyl- aminoacetyl, N-imidazolylmethyl-N-
- Unsubstituted or substituted alkyl for example for the radicals R 2 , R 3 , R 4 , R 5 , R 6 and/or R 7 , means an alkyl radical having from 1 to 20, preferably up to 10, carbon atoms, is branched or unbranched and is, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, neopentyl, tert-pentyl, n-hexyl, iso ⁇ hexyl, n-heptyl, n-octyl, n-nonyl or n-decyl.
- Lower alkyl is preferably, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, iso ⁇ pentyl, neopentyl, tert-pentyl, n-hexyl, isohexyl or n-heptyl that is unsubstituted or substit ⁇ uted.
- substituents of substituted lower alkyl preferably up to four, especially (except in the case of halogen which may be present as substituent up to three times) up to two of the substituents mentioned below, especially one substituent, are/is present (except in the case of halogen which may be present as substituent up to three times, the substituents being selected especially from cycloalkyl that has preferably from 3 to 7 carbon atoms, especially in cycloalkyl-lower alkyl wherein lower alkyl is as defined above, for example cycloalkylmethyl, for example having a total of from 4 to 8 carbon atoms, such as cyclopropyl-, cyclobutyl-, cyclopentyl- or cyclohexyl-lower alkyl, such as -methyl or -2-ethyl, cycloalkenyl that has preferably from 3 to 7 carbon atoms, especially in cycloalkenyl- lower alkyl, such as cycloalken
- carbamoyl especially in N-heterocyclyl-lower alkyl-carbamoyl-lower alkyl or N-lower alkyl-N-heterocyclyl-lower alkylcarbamoyl-lower alkyl, wherein heterocyclyl is selected preferably from pyrrolyl, furyl, thienyl, imidazolyl, pyrazolyl, oxazolyl, thiazolyl, pyridyl, pyrazinyl, pyrimidinyl, indolyl, quinolyl and isoquinolyl, each of which may be comp ⁇ letely or partially saturated, and from morpholinyl and thiomorpholinyl, such as 2-(N- methyl-2-(N-2-pyrid
- unsubstituted or substituted alkyl R l9 R 2 , R 3 , R 4 , R 5 , R 6 and R 7 are selected independently of one another from lower alkyl, for example methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl or tert-butyl, cycloalkyl-lower alkyl wherein cycloalkyl has, for example, from 3 to 7 carbon atoms, such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl or cycloheptyl, cycloalkyl being unsubstituted or mono- to tri-substituted by lower alkyl, such as isopropyl, halo-lower alkyl, such as trifluoromethyl, hydroxy, lower alkoxy, amino, mono- or di-lower alkyl ⁇ amino, halogen, such as flu
- unsubstituted alkyl R ⁇ and R 7 is unsubstituted lower alkyl, such as methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl or tert-butyl.
- Alkenyl R 2 , R 3 , R 4 and/or R 7 is especially alkenyl that has from 3 to 10 carbon atoms and is bonded via a carbon atom without a double bond, especially lower alkenyl, such as allyl.
- Alkyloxy R 7 has preferably up to 10 carbon atoms and is especially lower alkoxy, such as methoxy or ethoxy.
- -Aryloxy contains preferably an aryl radical as defined above as substituent of substituted alkyl R 2 , especially a phenyl or naphthyl radical that is substituted as indicated there or is unsubstituted, for example fluoro-, lower alkoxy-, such as methoxy- or isobutoxy-, or cyano-phenyl or phenyl.
- Salts of compounds of formula I are especially (when basic groups are present in compounds of formula I) acid addition salts, salts with bases (when acidic groups are present in compounds of formula I) or, when several salt-forming groups are present, may also be mixed salts or internal salts.
- Salts are especially the pharmaceutically acceptable non-toxic salts of compounds of formula I.
- Such salts are formed, for example, from compounds of formula I having an acidic group, for example having a carboxy or sulfo group or having a phosphoryl group substituted by one or two hydroxy groups, and are, for example, the salts thereof with suitable bases, such as non-toxic metal salts derived from metals of groups la, lb, Ila and lib of the Periodic Table of Elements, especially suitable alkali metal salts, for example lithium, sodium or potassium salts, or alkaline earth metal salts, for example magnesium or calcium salts, and also zinc salts or ammonium salts, as well as those salts which are formed with organic amines, such as unsubstituted or hydroxy-substituted mono-, di- or tri-alkylamines, especially mono-, di- or tri-lower alkylamines, or with quaternary ammonium compounds, for example with N-methyl-N-e
- the compounds of formula I having a basic group, for example an amino group can form acid addition salts, for example with inorganic acids, for example a hydrohalic acid, such as hydrochloric acid, sulfuric acid or phosphoric acid, or with organic carboxylic, sulfonic, sulfo or phospho acids or N-substituted sulfamic acids, such as, for example, acetic acid, propionic acid, glycolic acid, succinic acid, maleic acid, hydroxymaleic acid, methylmaleic acid, fumaric acid, malic acid, tartaric acid, gluconic acid, glucaric acid, glucuronic acid, citric acid, benzoic acid, cinnamic acid, mandelic acid, salicylic acid, 4-aminosalicylic acid, 2-phenoxy- benzoic acid, 2-acetoxybenzoic acid, embonic acid, nicotinic acid or isonicotinic acid, and also with amino acids, such as, for example, the
- the compounds of formula I have valuable pharmacological properties. They exhibit anti-retroviral activity, especially against the HIV- 1 and HI V-2 viruses which are regarded as being pathogens of AIDS.
- the compounds of formula I wherein R j has the mentioned meanings with the exception of hydrogen are, in warm-blooded animals, i.e. in the human or animal organism, converted into compounds of formula I wherein R 1 is hydrogen, for example by endogenous esterases or non-peptide- specific peptidases.
- the last-mentioned compounds of formula I are inhibitors of retroviral aspartate proteases, especially inhibitors of the aspartate protease of HTV-1 or HTV-2, and are accordingly suitable for the treatment of retroviral diseases, such as AIDS or its precursors (for example ARDS).
- retroviral diseases such as AIDS or its precursors (for example ARDS).
- compounds of formula I wherein R 1 has the mentioned meanings with the exception of hydrogen have especially advantageous pharmacodynamic properties, for example a higher bioavailability (especially when administered orally) than, and a kind of pharmacodynamics different from, that of compounds of formula I wherein R j is hydrogen.
- the active ingredient to be tested is dissolved in dimethyl sulfoxide.
- the enzymatic test is carried out by adding suitable dilutions of the inhibitor in 20 mM ⁇ -morpholinoethane- sulfonic acid (MES)-buffer pH 6.0 to the test mixture, which comprises the above- mentioned icosapeptide (122 ⁇ M) in 20 mM MES buffer pH 6.0. 100 ⁇ l are used per test batch.
- the reaction is started by adding 10 ⁇ l of HIV- 1 -protease solution and is stopped after one hour's incubation at 37°C by adding 10 ⁇ l of 0.3 M HClO 4 .
- the uncleaved icosapeptide and also its cleavage products are eluted from the column using the following gradient: 100 % eluant 1 -> 50 % eluant 1 + 50 % eluant 2 (eluant 1: 10 % acetonitrile, 90 % H 2 0, 0.1 % trifluoroacetic acid (TFA); eluant 2: 75 % acetonitrile, 25 % H 2 0, 0.08 % TFA) for 15 minutes, throughflow rate 1 ml/minute.
- the quantification of the eluted peptide fragments is effected by measuring the peak height of the cleavage product at 215 nm.
- the compounds exhibit inhibitory activity in the range of from IO “5 to 10 "9 M.
- the virus HIV-1 (strain LAV) is grown in A 3.01 cells (NIH, Bethesda, USA), a cell line used for growing HIV-1 and derived from the GEM cell line.
- the titre of the virus preparation is 2 x IO 7 IU/ml according to measurement by the test for reverse transcriptase (see below).
- 10 x IO 4 exponentially growing MT-2 cells in 50 ⁇ l of culture medium in 96- well microtitre plates.
- a sample of 10 ⁇ l of the supernatant is taken from each well in order to measure the activity of the reverse trans ⁇ criptase.
- the titre of the retrovirus-specific enzyme reverse transcriptase is used as the measurable variable for the virus titre.
- the samples taken are transferred to a further 96-well microtitre plate and stored at -20°C until measurement is carried out.
- the reverse transcriptase cocktail comprises 50 mM Tris ( ⁇ , ⁇ , ⁇ -tris(hydroxy- methyl)methylamine, Ultra pur, Merck, Germany) pH 7.8; 75 mM KC1, 2 mM dithio- threitol, 5 mM MgCl 2 ; 0.05% Nonidet P-40 (detergent; Sigma, Switzerland).
- the mixture is filtered through a 0.45 ⁇ Acrodisc filter (Gelman Sciences Inc., Ann Arbor, USA) and stored at -20°C.
- 0.1 % (v/v) [alpha- 32 P]dTTP is added before the test to aliquots of the solution in order to obtain a final radioactivity of 10 ⁇ Ci/ml.
- the plate After mixing, the plate is incubated for 2 hours at 37°C. 5 ⁇ l of the reaction mixture are transferred to DE81 paper (Whatman, one filter per well). The dried filters are washed three times for 5 minutes with 300 mM NaCl/25 mM trisodium citrate and then once with ethanol and are again dried in the air. The radioactivity on the filters is measured in a Matrix Packard 96- well counter (Packard, Zurich, Switzerland). The ED90 values are calculated and are defined as the concentration of the test compound that reduces the RT activity by 90 % in comparison with a control without a test compound.
- the compounds of formula I wherein R x is hydrogen preferably exhibit an inhibition of virus replication at concentrations of from IO "5 to 10 "8 M.
- the compounds of formula I to be investigated are dissolved, for example, in dimethyl sulfoxide (DMSO) in a concentration of 240 mg/ml.
- DMSO dimethyl sulfoxide
- HP ⁇ CD hydroxypropyl- ⁇ -cyclodextrin
- That solution is administered to mice orally by artificial special feeding in a dose of 120 mg kg. 60, 90 and 120 minutes after administration the animals are sacrificed and blood is removed. Three or four animals are investigated per time point.
- the blood is heparinised and prepared for analysis as follows: an internal standard is added to the heparinised blood in a final concentration of 4 ⁇ M. The blood is centrifuged.
- 0.25 ml of plasma is removed and deproteinised with an equal volume of acetonitrile. After centrifugation, the supernatant is concentrated to dryness by evaporation in vacuo and the residue is suspended in 20 ⁇ l of 3M NaCl solution and 100 ⁇ l of 0.05M phthalate buffer having a pH of 3.0. The suspension is extracted first with 1 ml and then with 0.2 ml of diisopropyl ether. The diiso ⁇ propyl ether solution is concentrated to dryness by evaporation and the residue is dissolved in 50 % (v/v) aqueous acetonitrile. The solution is investigated by reversed phase HPLC.
- the compounds of formula I can also be used in the prevention, control and treatment of infections caused by retroviruses, especially HIV, such as HTV-l or HTV-2, in cell cultures of mammalian cells, which is of particular advantage in the case of very valuable cell cultures which produce, for example, specific antibodies, vaccines or messenger substances, such as interleukins etc., and are accordingly of great commercial value.
- retroviruses especially HIV, such as HTV-l or HTV-2
- cell cultures of mammalian cells which is of particular advantage in the case of very valuable cell cultures which produce, for example, specific antibodies, vaccines or messenger substances, such as interleukins etc., and are accordingly of great commercial value.
- the compounds of formula I can be used as standards in tests, for example as HPLC standards or as standards for comparing animal models in respect of various aspar ⁇ tate protease inhibitors, for example with regard to the level that can be obtained in the blood.
- Rj is lower alkanoyl; octanoyl, nonanoyl, decanoyl, undecanoyl, dodecanoyl, palmitoyl; lower alkenoyl; lower alkynoyl; substituted lower alkanoyl wherein the substituents are selected from up to three radicals from the group consisting of hydroxy, lower alkox) , lower alkoxy-lower alkoxy, lower alkoxy-lower alkoxy-lower alkoxy, phenyl-lower alkoxy, naphthyl-lower alkoxy, phenyloxy-lower alkoxy wherein the phenyl radical may be unsubstituted or substituted by halogen up to three times, phenoxy, naphthyloxy, lower alkanoyloxy, phenyl-lower alkanoyloxy, halogen, carboxy, lower alkoxycarbonyl, phenyl-lower alkoxycarbony
- R 2 , R 3 , R 4 and R 5 are each independently of the others lower alkyl that is unsubstituted or substituted by up to four substituents selected from cycloalkyl that has from 3 to 7 carbon atoms; cycloalkenyl that has from 3 to 7 carbon atoms; bicycloalkyl that contains from 5 to 10 carbon atoms; bicycloalkenyl having from 8 to 12 carbon atoms; tricycloalkyl wherein tricycloalkyl contains from 8 to 10 carbon atoms; aryl selected from phenyl, indenyl, indanyl, naphthyl, anthryl, phenanthryl, acenaphthyl and fluorenyl, wherein aryl may be unsubstituted or, especially, substituted by one or up to three radicals selected from lower alkyl, halo-lower alkyl, phenyl, 1- or 2-naphthyl, hydroxy, lower alk
- salts especially pharmaceutically acceptable salts thereof.
- Rj is hydrogen
- R 1 is hydroxy
- R 2 , R 3 , R and R 5 are each independently of the others a radical selected from phenyl-lower alkyl, such as benzyl, naphthyl-lower alkyl, such as 1- or 2-naphthylmethyl, fluorophenyl-lower alkyl, such as 4-fluorobenzyl, cyclopropyl-lower alkyl, such as cyclo- propylmethyl, cyclohexyl-lower alkyl, cyanophenyl-lower alkyl, such as 4-cyanobenzyl, lower alkoxyphenyl-lower alkyl, such as 4-isobutoxybenzyl or 4-methoxybenzyl, lower alkyl, such as n-propyl, isopropyl, isobutyl or n-butyl, and lower alkenyl, such as allyl,
- the compounds of formula I and salts of such compounds having at least one salt-forming group can be prepared in accordance with processes known per se, for example as follows:
- R ' is as defined for R : in compounds of formula I with the exception of hydrogen, or a salt thereof, is alkylated with a compound of formula IV
- R is a radical as defined for R 3 and R 4 and L ⁇ is a nucleofugal leaving group
- R 1 ' is one of the radicals Rj with the exception of hydrogen, or with a reactive acid derivative thereof, and, if necessary, protecting groups present are removed,
- a compound of formula I that is obtainable by one of the above processes a) to c) and has at least one salt-forming group is converted into its salt, or an obtainable salt is converted into the free compound or into a different salt and/or, if necessary, obtain ⁇ able mixtures of isomers are separated and/or a compound of formula I according to the invention is converted into a different compound of formula I according to the invention.
- Those functional groups in starting materials the reaction of which is to be avoided, espec ⁇ ially carboxy, amino, hydroxy, mercapto and sulfo groups, can be protected by suitable protecting groups (conventional protecting groups) which are customarily used in the synthesis of peptide compounds, and also in the synthesis of cephalosporins and penicil ⁇ lins as well as nucleic acid derivatives and sugars.
- suitable protecting groups conventional protecting groups
- those protecting groups may already be present in the precursors and are intended to protect the functional groups in question against undesired secondary reactions, such as acylation, etherification, esterification, oxidation, solvolysis, etc..
- the protecting groups can additionally cause the reactions to proceed selectively, for example stereoselectively.
- a carboxy group is protected, for example, in the form of an ester group which can be cleaved selectively under mild conditions.
- a carboxy group protected in esterified form is esterified especially by a lower alkyl group that is preferably branched in the 1 -position of the lower alkyl group or substituted in the 1- or 2-position of the lower alkyl group by suit ⁇ able substituents.
- a protected carboxy group esterified by a lower alkyl group is, for example, methoxy- carbonyl or ethoxycarbonyl.
- 1 -position of the lower alkyl group is, for example, tert-lower alkoxycarbonyl, for example tert-butoxycarbonyl.
- a protected carboxy group esterified by a lower alkyl group that is substituted in the 1- or 2-position of the lower alkyl group by suitable substituents is, for example, arylmethoxy- carbonyl having one or two aryl radicals, wherein aryl is phenyl that is unsubstituted or mono-, di- or tri-substituted, for example, by lower alkyl, for example tert-lower alkyl, such as tert-butyl, lower alkoxy, for example methoxy, hydroxy, halogen, for example chlorine, and/or by nitro, for example benzyloxycarbonyl, benzyloxycarbonyl substituted by the mentioned substituents, for example 4-nitrobenzyloxycarbonyl or 4-methoxy- benzyloxycarbonyl, diphenylmethoxycarbonyl or diphenylmethoxycarbonyl substituted by the mentioned substituents, for example di(4-methoxyphenyl)me
- a carboxy group may also be protected in the form of an organic silyloxycarbonyl group.
- An organic silyloxycarbonyl group is, for example, a tri-lower alkylsilyloxycarbonyl group, for example trimethylsilyloxycarbonyl or tert-butyl-dimethylsilyloxycarbonyl.
- the silicon atom of the silyloxycarbonyl group can also be substituted by two lower alkyl groups, for example methyl groups, and by an amino group or carboxy group of a second molecule of formula I.
- Compounds having such protecting groups can be prepared, for example, using dimethylchlorosilane as silylating agent.
- a protected carboxy group is preferably tert-lower alkoxycarbonyl, for example tert-but- oxycarbonyl, benzyloxycarbonyl, 4-nitrobenzyloxycarbonyl, 9-fluorenylmethoxycarbonyl or diphenylmethoxycarbonyl.
- a protected amino group may be protected by an amino-protecting group, for example in the form of an acylamino, arylmethylamino, etherified mercaptoamino, 2-acyl-lower alk-1-enylamino or silylamino group or in the form of an azido group.
- acyl is, for example, the acyl radical of an organic carboxylic acid having, for example, up to 18 carbon atoms, especially an unsubstituted or substituted, for example halo- or aryl-substituted, lower alkanecarboxylic acid or an unsubstituted or substituted, for example halo-, lower alkoxy- or nitro- substituted, benzoic acid, or, preferably, of a carbonic acid semiester.
- an organic carboxylic acid having, for example, up to 18 carbon atoms, especially an unsubstituted or substituted, for example halo- or aryl-substituted, lower alkanecarboxylic acid or an unsubstituted or substituted, for example halo-, lower alkoxy- or nitro- substituted, benzoic acid, or, preferably, of a carbonic acid semiester.
- Such acyl groups are, for example, lower alkanoyl, such as formyl, acetyl, propionyl or pivaloyl, halo-lower alkanoyl, for example 2-haloacetyl, such as 2-chloro-, 2-bromo-, 2-iodo-, 2,2,2-trifluoro- or 2,2,2-tri- chloro-acetyl, unsubstituted or substituted, for example halo-, lower alkoxy- or nitro- substituted, benzoyl, such as benzoyl, 4-chlorobenzoyl, 4-methoxybenzoyl or 4-nitro- benzoyl, lower alkoxycarbonyl, preferably lower alkoxycarbonyl that is branched in the 1-position of the lower alkyl radical or suitably substituted in the 1- or 2-position, for example tert-lower alkoxycarbonyl, such as tert-butoxycarbonyl, arylmethoxycarbonyl having
- aryl radicals are especially unsubstituted or substituted phenyl radicals.
- Such groups are, for example, benzyl-, diphenylmethyl- or especially trityl-amino.
- the mercapto group is especially in the form of substituted arylthio or aryl-lower alkylthio, wherein aryl is, for example, phenyl that is unsubstituted or substituted, for example, by lower alkyl, such as methyl or tert-butyl, lower alkoxy, such as methoxy, halogen, such as chlorine, and/or by nitro, for example 4-nitrophenylthio.
- aryl is, for example, phenyl that is unsubstituted or substituted, for example, by lower alkyl, such as methyl or tert-butyl, lower alkoxy, such as methoxy, halogen, such as chlorine, and/or by nitro, for example 4-nitrophenylthio.
- acyl is, for example, the corresponding radical of a lower alkanecarboxylic acid, of a benzoic acid that is unsubstituted or substituted, for example, by lower alkyl, such as methyl or tert- butyl, lower alkoxy, such as methoxy, halogen, such as chlorine, and/or by nitro, or espe ⁇ cially of a carbonic acid semiester, such as a carbonic acid lower alkyl semiester.
- lower alkyl such as methyl or tert- butyl
- lower alkoxy such as methoxy
- halogen such as chlorine
- espe ⁇ cially of a carbonic acid semiester such as a carbonic acid lower alkyl semiester.
- Corres ⁇ ponding protecting groups are especially 1 -lower alkanoyl-lower alk-l-en-2-yl, for example 1 -lower alkanoyl-prop-l-en-2-yl, such as l-acetyl-prop-l-en-2-yl, or lower alkoxycarbonyl-lower alk-l-en-2-yl, for example lower alkoxycarbonyl-prop-l-en-2-yl, such as l-ethoxycarbonyl-prop-l-en-2-yl.
- 1 -lower alkanoyl-lower alk-l-en-2-yl for example 1 -lower alkanoyl-prop-l-en-2-yl, such as l-acetyl-prop-l-en-2-yl, or lower alkoxycarbonyl-lower alk-l-en-2-yl, for example lower alkoxycarbonyl-prop-l-en-2-yl, such as
- a silylamino group is, for example, a tri-lower alkylsilylamino group, for example trimethylsilylamino or tert-butyl-dimethylsilylamino.
- the silicon atom of the silylamino group can also be substituted by only two lower alkyl groups, for example methyl groups, and by the amino group or carboxy group of a second molecule of formula I.
- Compounds having such protecting groups can be prepared, for example, using the corresponding chlorosilanes, such as dimethylchlorosilane, as silylating agents.
- suitable corresponding anions are especially those of strong inorganic acids, such as sulfuric acid, phosphoric acid or hydrohalic acids, for example the chlorine or bromine anion, or of organic sulfonic acids, such as p-toluenesulfonic acid.
- Preferred amino-protecting groups are lower alkoxycarbonyl, phenyl-lower alkoxycar ⁇ bonyl, fluorenyl-lower alkoxycarbonyl, 2-lower alkanoyl-lower alk-l-en-2-yl and lower alkoxycarbonyl-lower alk-l-en-2-yl.
- a hydroxy group, especially the OH-group in compounds of formula II which is protected by Yj, can be protected, for example, by an acyl group, for example lower alkanoyl that is substituted by halogen, such as chlorine, such as 2,2-dichloroacetyl, or especially by an acyl radical of a carbonic acid semiester mentioned for protected amino groups.
- a preferred hydroxy-protecting group of that type is, for example, 2,2,2-rrichloroethoxy- carbonyl, 4-nitrobenzyloxycarbonyl, diphenylmethoxycarbonyl or triphenylmethoxy- carbonyl.
- a hydroxy group may preferably be protected by tri-lower alkylsilyl, for example trimethylsilyl, triisopropylsilyl or tert-butyl-dimethylsilyl, a readily removable etherifying group, for example an alkyl group, such as tert-lower alkyl, for example tert- butyl, an oxa- or a thia-aliphatic or -cycloaUphatic, especially 2-oxa- or 2-thia-aliphatic or -cycloaUphatic, hydrocarbon radical, for example 1 -lower alkoxy-lower alkyl or 1 -lower alkylthio-lower alkyl, such as methoxymethyl, 1-methoxyethyl, 1-ethoxyethyl, methyl- thiomethyl, 1-methylthioethyl or 1-ethylthioethyl, or 2-oxa- or 2-thia-cycloalkyl having from 5
- Two hydroxy groups, especially adjacent hydroxy groups, occurring in a molecule, or a hydroxy group and an amino group that are adjacent to one another, can be protected, for example, by bivalent protecting groups, such as a methylene group that is preferably substituted, for example, by one or two lower alkyl radicals or by oxo, for example unsub ⁇ stituted or substituted alkylidene, for example lower alkylidene, such as isopropylidene, cycloalkyhdene, such as cyclohexyUdene, a carbonyl group or benzylidene.
- bivalent protecting groups such as a methylene group that is preferably substituted, for example, by one or two lower alkyl radicals or by oxo, for example unsub ⁇ stituted or substituted alkylidene, for example lower alkylidene, such as isopropylidene, cycloalkyhdene, such as cyclohexyUden
- a mercapto group, for example in cysteine, can be protected especially by S-alkylation with unsubstituted or substituted alkyl radicals, by silylation, by thioacetal formation, by S-acylation or by the formation of asymmetric disulfide groupings.
- Preferred mercapto- protecting groups are, for example, benzyl that is unsubstituted or substituted in the phenyl radical, for example by methoxy or by nitro, such as 4-methoxybenzyl, diphenylmethyl that is unsubstituted or substituted in the phenyl radical, for example by methoxy, such as di(4-methoxyphenyl)methyl, triphenylmethyl, pyridyldiphenylmethyl, trimethylsilyl, benzylthiomethyl, tetrahydropyranyl, acylaminomethyl, such as acetamidomethyl, iso- butyrylacetamidomethyl or 2-chloroacetamidomethyl, benzoyl, benzyloxycarbonyl or alkyl-, especially lower alkyl-aminocarbonyl, such as ethylaminocarbonyl, and also lower alkylthio, such as S-ethylthio or S-
- a sulfo group can be protected, for example, by lower alkyl, for example methyl or ethyl, by phenyl or in the form of a sulfonamide, for example in the form of an imidazoUde.
- a protecting group for example a carboxy-protecting group
- a polymeric carrier that is bonded in a readily removable manner to the functional group, for example the carboxy group, to be protected, for example a carrier suitable for the Merrifield synthesis.
- a suitable polymeric carrier is especially a polystyrene resin that is weakly cross-Unked by copoly- merisation with divinylbenzene and that carries bridge members suitable for reversible bonding.
- protecting groups that are not constituents of the desired end product of formula I, for example the carboxy-, amino-, hydroxy-, mercapto- and/or sulfo-protecting groups, is effected in a manner known per se, for example by means of solvolysis, espe ⁇ cially hydrolysis, alcoholysis or acidolysis, or by means of reduction, especially hydro- genolysis or by chemical reduction, as weU as photolysis, as appropriate in stages or simultaneously, it being possible also to use enzymatic methods.
- the removal of the protecting groups is described, for example, in the standard works mentioned hereinbefore in the section relating to protecting groups.
- protected carboxy for example tert-lower alkoxycarbonyl, lower alkoxy ⁇ carbonyl substituted in the 2-position by a trisubstituted silyl group or in the 1 -position by lower alkoxy or by lower alkylthio, or unsubstituted or substituted diphenylmethoxy ⁇ carbonyl can be converted into free carboxy by treatment with a suitable acid, such as formic acid, hydrogen chloride or trifluoroacetic acid, where appropriate with the addition of a nucleophilic compound, such as phenol or anisole.
- Carboxy can be freed from lower alkoxycarbonyl also by means of bases, such as hydroxides, for example alkali metal hydroxides, such as NaOH or KOH.
- Unsubstituted or substituted benzyloxycarbonyl can be converted to free carboxy, for example, by means of hydrogenolysis, i.e. by treatment with hydrogen in the presence of a metal hydrogenation catalyst, such as a palladium catalyst.
- a metal hydrogenation catalyst such as a palladium catalyst.
- suitably substituted benzyloxycarbonyl such as 4-nitrobenzyloxy- carbonyl
- 2-halo-lower alkoxy ⁇ carbonyl (where appropriate after conversion of a 2-bromo-lower alkoxycarbonyl group into a corresponding 2-iodo-lower alkoxycarbonyl group) or aroylmethoxycarbonyl can also be converted into free carboxy.
- Aroylmethoxycarbonyl can be cleaved also by treat ⁇ ment with a nucleophilic, preferably salt-forming, reagent, such as sodium thiophenolate or sodium iodide.
- 2-(tri-substituted silyl)-lower alkoxycarbonyl such as 2-tri-lower alkyl- silyl-lower alkoxycarbonyl
- a salt of hydrofluoric acid that yields the fluoride anion, such as an alkali metal fluoride, for example sodium or potassium fluoride, where appropriate in the presence of a macrocyclic polyether ("crown ether"), or with a fluoride of an organic quaternary base, such as tetra- lower alkylammonium fluoride or tri-lower alkylaryl-lower alkylammonium fluoride, for example tetraethylammonium fluoride or tetrabutylammomum fluoride, in the presence of an aprotic, polar solvent, for example a bis-lower alkane sulfine, such as dimethyl sulfoxide, or an N,N-di
- Carboxy protected in the form of organic silyloxy ⁇ carbonyl such as tri-lower alkylsilyloxycarbonyl, for example trimethylsilyloxycarbonyl
- Carboxy protected in the form of organic silyloxy ⁇ carbonyl can be freed in customary manner by solvolysis, for example by treatment with water, an alcohol or an acid, or, furthermore, a fluoride, as described above.
- Esterified carboxy can also be freed enzymatically, for example by means of esterases or suitable peptidases, for example esterified arginine or lysine, such as lysine methyl ester, using trypsin.
- a protected amino group is freed in a manner known per se and, according to the nature of the protecting groups, in various ways, preferably by solvolysis or reduction.
- Lower alkoxycarbonylamino such as tert-butoxycarbonylamino
- acids for example mineral acids, for example a hydrogen halide, such as hydrogen chloride or hydrogen bromide, or sulfuric or phosphoric acid, preferably hydrogen chloride, or strong organic acids, such as trihaloacetic acid, for example trifluoroacetic acid, or formic acid, in polar solvents, such as water, or ethers, preferably cyclic ethers, such as dioxane; 2-halo-lower alkoxycarbonylamino (where appropriate after conversion of a 2-bromo-lower alkoxycarbonylamino group into a 2-iodo-lower alkoxycarbonylamino group) or aroylmethoxycarbonylamino or 4-nitrobenzyl
- acids for example mineral acids, for
- Aroylmethoxycarbonylamino can be cleaved also by treatment with a nucleophiUc, preferably salt-forming, reagent, such as sodium thiophenolate, and 4-nitrobenzyloxycarbonylamino also by treatment with an alkali metal dithionite, for example sodium dithionite.
- a nucleophiUc preferably salt-forming, reagent, such as sodium thiophenolate
- 4-nitrobenzyloxycarbonylamino also by treatment with an alkali metal dithionite, for example sodium dithionite.
- Unsubstituted or substituted diphenylmethoxycarbonylamino, tert-lower alkoxycarbonylamino or 2-(tri-substituted silyl)-lower alkoxycarbonylamino, such as 2-tri-lower alkylsilyl-lower alkoxycarbonyl ⁇ amino, can be cleaved by treatment with a suitable acid, for example formic acid or trifluoroacetic acid; unsubstituted or substituted benzyloxycarbonylamino can be cleaved, for example, by means of hydrogenolysis, i.e.
- unsubstituted or substituted triarylmethylamino or formylamino can be cleaved, for example, by treatment with an acid, such as a mineral acid, for example hydrochloric acid, or an organic acid, for example formic, acetic or trifluoroacetic acid, where appropriate in the presence of water, and an amino group protected in the form of silylamino can be freed, for example, by means of hydrolysis or alcoholysis.
- a suitable hydrogenation catalyst such as a platinum or palladium catalyst
- an acid such as a mineral acid, for example hydrochloric acid, or an organic acid, for example formic, acetic or trifluoroacetic acid, where appropriate in the presence of water, and an amino group protected in the form of silylamino can be freed, for example, by means of hydrolysis or alcoholysis.
- An amino group protected by 2-haloacetyl for example 2-chloroacetyl
- 2-chloroacetyl can be freed by treatment with thiourea in the presence of a base, or with a thiolate salt, such as an alkali metal thiolate of thiourea, and subsequent solvolysis, such as alcoholysis or hydrolysis, of the resulting substitution product; amino is freed from trifluoroacetylamino, for example, by hydrogenolysis with bases, such as alkali metal hydroxides or carbonates, such as Na 2 CO 3 or K 2 CO 3 , in polar solvents, for example alcohols, such as methanol, at temperatures of from 0 to 100°C, especially from 40 to 80°C.
- bases such as alkali metal hydroxides or carbonates, such as Na 2 CO 3 or K 2 CO 3
- polar solvents for example alcohols, such as methanol
- An amino group protected by 2-(tri-substituted silyl)-lower alkoxycarbonyl such as 2-tri-lower alkylsilyl-lower alkoxycarbonyl
- 2-tri-lower alkylsilyl-lower alkoxycarbonyl can be converted into the free amino group also by treatment with a salt of hydrofluoric acid that yields fluoride anions, as indicated above in connection with the freeing of a correspondingly protected carboxy group under conditions analogous to those mentioned there.
- silyl such as trimethylsilyl
- bonded directly to a hetero atom, such as nitrogen can be removed using fluoride ions.
- Amino protected in the form of an azido group is converted into free amino, for example, by reduction, for example by catalytic hydrogenation with hydrogen in the presence of a hydrogenation catalyst, such as platinum oxide, palladium or Raney nickel, by reduction using mercapto compounds, such as dithiothreitol or mercaptoethanol, or by treatment with zinc in the presence of an acid, such as acetic acid.
- the catalytic hydrogenation is preferably carried out in an inert solvent, such as a halogenated hydrocarbon, for example methylene chloride, or in water or in a mixture of water and an organic solvent, such as an alcohol or dioxane, at approximately from 20°C to 25 °C, or with cooling or heating.
- a hydroxy or mercapto group protected by a suitable acyl group, by a tri-lower alkylsilyl group or by unsubstituted or substituted 1 -phenyl-lower alkyl is freed analogously to a correspondingly protected amino group.
- a hydroxy or mercapto group protected by 2,2-dichloroacetyl is freed, for example, by basic hydrolysis, and a hydroxy or mercapto group protected by tert-lower alkyl or by a 2-oxa- or 2-thia-aUphatic or -cycloaUphatic hydrocarbon radical is freed by acidolysis, for example by treatment with a mineral acid or a strong carboxylic acid, for example trifluoroacetic acid.
- Mercapto protected by pyridyl- diphenylmethyl can be freed, for example, using mercury(II) salts at pH 2-6 or by zinc/- acetic acid or by electrolytic reduction; acetamidomethyl and isobutyrylamidomethyl can be freed, for example, by reaction with mercury(II) salts at pH 2-6; 2-chloroacetamido- methyl can be freed, for example, using 1-piperidinothiocarboxamide; and S-ethylthio, S-tert-butylthio and S-sulfo can be freed, for example, by thiolysis with thiophenol, thio- glycolic acid, sodium thiophenolate or 1,4-dithiothreitol.
- Two hydroxy groups or an adjacent amino and hydroxy group which are protected together by means of a bivalent protecting group preferably, for example, by a methylene group mono- or di-substituted by lower alkyl, such as lower alkylidene, for example isopropylidene, cycloalkylidene, for example cyclohexyUdene, or benzylidene, can be freed by acid solvolysis, especially in the presence of a mineral acid or a strong organic acid.
- a tri-lower alkylsilyl group is likewise removed by acidolysis, for example by a mineral acid, preferably hydrofluoric acid, or a strong carboxylic acid, or by treatment with a salt of hydrofluoric acid that yields the fluoride anion, such as an alkali metal fluoride, for example sodium or potassium fluoride, where appropriate in the presence of a macrocyclic polyether (crown ether), or with a fluoride of an organic quaternary base, such as terra-lower alkyl ⁇ ammonium fluoride or tri-lower alkylaryl-lower alkylammonium fluoride, for example tetraethylammonium fluoride or tetrabutylammonium fluoride, in the presence of an aprotic polar solvent, for example a bis-lower alkane sulfine, such as dimethyl sulfoxide, or an N,N-di-lower alkyl-lower alkano
- 2-halo-lower alkoxycarbonyl is removed using the above- mentioned reducing agents, for example a reducing metal, such as zinc, reducing metal salts, such as chromium(II) salts, or using sulfur compounds, for example sodium dithionite or preferably sodium sulfide and carbon disulfide.
- a reducing metal such as zinc
- reducing metal salts such as chromium(II) salts
- sulfur compounds for example sodium dithionite or preferably sodium sulfide and carbon disulfide.
- a sulfo group protected in the form of a sulfonic acid ester or sulfonamide is freed, for example, by acid hydrolysis, for example in the presence of a mineral acid, or preferably by basic hydrolysis, for example with an alkali metal hydroxide or an alkali metal carbonate, for example sodium carbonate.
- the protecting groups can be so selected that more than one such group can be removed simultaneously, for example by acidolysis, such as by treatment with trifluoroacetic acid, or with hydrogen and a hydrogenation catalyst, such as a palladium-on-carbon catalyst.
- the groups can also be so selected that they cannot all be removed simultaneously, but rather are removed in a desired sequence, the corresponding, partially protected intermediates being obtained.
- protecting groups are so chosen that acyl migration from acyl protecting groups does not take place to an unacceptable extent.
- the removal of protecting groups is preferably carried out at temperatures of from approximately 0°C to reflux temperature, especially from 10° to 40°C, for example at approximately room temperature, or also at reflux temperature.
- Preferred as starting materials of formula m are those of formula Dla or Hlb,
- a nucleofugal leaving group Lj is, especially, selected from hydroxy esterified by a strong inorganic or organic acid, such as hydroxy esterified by a mineral acid, for example a hydrohalic acid, such as hydrochloric acid, hydrobromic acid or hydriodic acid, or by a strong organic sulfonic acid, such as an unsubstituted or substituted, for example halo-, such as fluoro-, substituted, lower alkanesulfonic acid, or an aromatic sulfonic acid, for example a benzenesulfonic acid that is unsubstituted or substituted by lower alkyl, such as methyl, halogen, such as bromine, and/or by nitro, for example a methanes ulfonic acid, p-bromotoluenesulfonic acid or p-toluenesulfonic acid, or hydroxy esterified by hydrazoic acid.
- Alkylation is effected in accordance with customary methods in the presence of a base, especially a suitable strong base, for example an alkali metal di-lower alkylamide, such as lithium diisopropylamide, an alkali metal hydride, such as lithium, sodium or potassium hydride, or an alkali metal amide, such as lithium or sodium amide, each of which may also be added in the form of a dispersion in oil or in an ahphatic hydrocarbon, such as hexane, at preferred temperatures of from -10°C to reflux temperature, especially from room temperature to reflux temperature, for example approximately at room temperature, in aprotic, especially polar, solvents, such as acid amides, for example dimethyl ⁇ formamide, a urea derivative, such as l,3-dimethyl-3,4,5,6-tetrahydro-2(lH)-pyrimidinone (DMPU), or a hexa-lower alkylphosphoric acid triamide, such as hexamethyl
- the acylation of the hydroxy group is effected, for example, in a manner known per se using a free acid of formula V as defined above or a salt thereof wherein R j ' is as defined with the exception of unsubstituted or substituted aminocarbonyl, or a reactive derivative of a compound of formula V wherein R j ' is as defined for R j in compounds of formula I with the exception of hydrogen.
- a suitable reactive derivative is, for example, a carboxylic acid of formula Va
- R j ' is one of the radicals Ri mentioned above for compounds of formula I with the exception of hydrogen, preferably one of the radicals mentioned with the exception of unsubstituted or substituted aminocarbonyl, and wherein Zj is reactively activated hydroxy (the compound of formula Va therefore contains, instead of a hydroxy function bonded to the carbonyl group, reactively activated hydroxy, preferably as defined below).
- the free carboxylic acid of formula V can be activated, especially also in situ, for example, by strong acids, such as a hydrohalic, sulfuric, sulfonic or carboxylic acid, or acidic ion exchangers, for example by hydrochloric, hydrobromic or hydriodic acid, sulfuric acid, an unsubstituted or substituted, for example halo-substituted, alkane ⁇ carboxylic acid, or by an acid of formula V, preferably with an excess of the acid of formula V, if necessary with the binding of the resulting water of reaction by water- binding agents, with removal of the water of reaction by azeotropic distillation or with extractive esterification, by acid anhydrides, especially inorganic or more especially organic acid anhydrides, for example carboxy Uc acid anhydrides, such as lower alkane ⁇ carboxylic acid anhydrides (with the exception of formic acid anhydride), for example acetic anhydride, or by suitable activating or coupling reagents of the
- activating and couphng reagents for activating carboxylic acids of formula V in situ also carbodiimides, for example N,N'-di-C j -C alkyl- or N,N'-di-C 5 -C 7 cycloalkyl-carbodiimide, such as diisopropylcarbodiimide or N,N'- dicyclohexylcarbodumide, advantageously with the addition of an activating catalyst, such as N-hydroxysuccinimide or unsubstituted or substituted, for example halo-, C 1 -C 7 alkyl- or C 1 -C 7 alkoxy-substituted, N-hydroxy-benzotriazole or N-hydroxy-5-norbornene- 2,3-dicarboxamide, haloformate, for example isobutyl chloroformate, suitable carbonyl compounds, for example N,N-carbonyldiimidazole, suitable 1,2-oxazol
- Z j is preferably halogen, such as chlorine or bromine, and also acyloxy, for example lower alkanoyloxy, such as acetyloxy.
- a protective gas such as argon
- halogen such as chlorine
- Zj is halogen, such as chlorine
- the complementary alcohols for example unsubstituted or substituted alkyl alcohols, aryl-lower alkyl alcohols or heterocyclyl-lower alkyl alcohols, which after removal of the hydroxy-hydrogen yield, together with the bonding carbonyl group, unsubstituted or substituted alkoxycarbonyl, aryl-lower alkyloxycarbonyl or hetero ⁇ cyclyl-lower alkyloxycarbonyl R l5 as defined above, with phosgene or analogues thereof that contain instead of chlorine other halogen atoms, especially bromine, preferably in the presence of tertiary nitrogen bases, such as pyridine or triethylamine, and in inert
- tertiary nitrogen bases such as pyridine or triethylamine
- the reaction of compounds of formula II with the corresponding compounds of formula IX is then likewise carried out under those conditions (cf. Staab, H. A., Angew. Chemie 74, 407 (1962)).
- Rj in formula I is an unsubstituted or substituted amino ⁇ carbonyl group
- R ! is hydrogen
- R j ' is unsubstituted or substituted aminocarbonyl
- R j ' is unsubstituted or substituted aminocarbonyl, which can be prepared, for example, by reaction of the complementary amines, for example unsubstituted or substituted lower alkylamines, which, after removal of a hydrogen atom, yield a radical selected from unsubstituted and substituted lower alkyl as defined above as substituent of aminocarbonyl R j , or arylamines, which yield an arylaminocarbonyl radical, as defined in the definition of unsubstituted or substituted aminocarbonyl R l5 with phosgene or analogues thereof that contain instead of chlorine other halogen atoms, especially bromine
- the reaction of compounds of formula I wherein R j is hydroxy with the corresponding compounds of formula Va is then likewise carried out under those conditions (cf. Staab, H. A., Angew. Chemie 74, 407 (1962)).
- Q is an amino-protecting group, for example trihaloacetyl, such as trifluoro- or trichloro-acetyl, or one of the unsubstituted or substituted lower alkyl radicals or aryl radicals mentioned above in the definition of unsubstituted or substituted aminocarbonyl Ri, it being possible, when Q is an amino-protecting group, to obtain after the reaction with the compound of formula I wherein R_ is hydrogen the corresponding compound of formula I wherein R j is free aminocarbonyloxy, by removal of the protecting group Q, as described for the freeing of amino protected by acyl under Process a), especially by acid hydrolysis, or, when Q is one of the mentioned substituted or unsubstituted lower alkyl radicals or aryl radicals, a corresponding compound of formula I containing amino ⁇ carbonyl R j monosubstituted at the nitrogen atom.
- Q is an amino-protecting group, for example trihaloacetyl, such as trifluor
- Both aminocarbonyl and N-mono- substituted aminocarbonyl R 1 can be converted into N-disubstituted aminocarbonyl Rj by alkylation with a further unsubstituted or substituted lower alkyl radical using suitable starting materials and conditions analogous to those described below under "Additional Process Steps".
- the mentioned reactions can be carried out under reaction conditions known per se, at customary temperatures, in the presence or, especially when lower alkanoyl anhydrides are used to activate the carboxylic acid of formula V, in the absence of inert solvents or diluents, for example in acid amides, for example N,N-di-lower alkyl-lower alkane ⁇ carboxylic acid amides, such as dimethylformamide, dimethylacetamide or 1 ,3-dimethyl- 3,4,5,6-tetrahydro-2(lH)-pyrimidinone (DMPU), or amides of inorganic acids, such as hexamethylphosphoric acid triamide, ethers, for example cyclic ethers, such as tetra ⁇ hydrofuran or dioxane, or acyclic ethers, such as diethyl ether or ethylene glycol dimethyl ether, halogenated hydrocarbons, such as halo-lower alkanes, for example methylene
- reaction conditions that are mentioned specifically in any particular case or, especially, that are analogous to those mentioned in the Examples.
- the course of the reaction is advantageously monitored using customary methods of analysis, especially using thin-layer chromatography. From those reaction conditions it is possible to select the reaction conditions that are suitable for each of the reactions described in this text, reaction conditions that are specifically mentioned being especially preferred.
- the reaction according to the invention is preferably carried out under mild conditions, especially at temperatures of from -10° to 60°C, for example from 0°C to room temper ⁇ ature or at slightly elevated temperatures up to about 50°C, for example approximately from 0°C to 40°C, especially at room temperature.
- functional groups of the starting compounds that are not intended to participate in the reaction may be unprotected or may be in protected form, for example they may be protected by one or more of the protecting groups mentioned above under Process a).
- the protecting groups may be retained in the end products or some or all of them may be removed in accordance with one of the methods mentioned under Process a).
- Salts of compounds of formula I having at least one salt-forming group may be prepared in a manner known per se.
- salts of compounds of formula I having acidic groups may be formed, for example, by treatment with metal compounds, such as alkali metal salts of suitable organic carboxylic acids, for example the sodium salt of 2-ethyl- hexanoic acid, with organic alkali metal or alkaline earth metal compounds, such as the corresponding hydroxides, carbonates or hydrogen carbonates, such as sodium or potassium hydroxide, carbonate or hydrogen carbonate, with corresponding calcium compounds or with ammonia or a suitable organic amine, stoichiometric amounts or only a small excess of the salt-forming agent preferably being used.
- metal compounds such as alkali metal salts of suitable organic carboxylic acids, for example the sodium salt of 2-ethyl- hexanoic acid
- organic alkali metal or alkaline earth metal compounds such as the corresponding hydroxides, carbonates or hydrogen carbonates, such as sodium or potassium hydroxide
- Acid addition salts of compounds of formula I are obtained in customary manner, for example by treatment with an acid or a suitable anion exchange reagent.
- Internal salts of compounds of formula I containing acidic and basic salt-forming groups, for example a free carboxy group and a free amino group, may be formed, for example, by the neutralisation of salts, such as acid addition salts, to the isoelectric point, for example with weak bases, or by treatment with ion exchangers.
- Salts can be converted in customary manner into the free compounds; metal and ammonium salts can be converted, for example, by treatment with suitable acids, and acid addition salts, for example, by treatment with a suitable basic agent.
- the free compounds of formula I can then for their part be converted into other salts by the methods just mentioned for the preparation of salts of compounds of formula I.
- stereoisomers i.e. mixtures of diastereoisomers and/or enantiomers, such as, for example, racemic mixtures
- separating processes for example, mixtures of diastereoisomers can be separated into the individual diastereoisomers by fractional crystaUisation, chromatography, solvent partition etc..
- Racemates can be separated from one another, after conversion of the optical antipodes into diastereoisomers, for example by reaction with optically active compounds, for example optically active acids or bases, by chromatography on column materials covered with optically active compounds or by enzymatic methods, for example by selective reaction of only one of the two enantiomers. This separation can be carried out either at the stage of one of the starting materials or intermediates or with the compounds of formula I themselves.
- an aryl radical, especially a phenyl radical, in R j , R 2 , R 3 , R 4 , R 5 , R 6 and/or R 7 can be hydrogenated, for example by catalytic hydrogenation, especially in the presence of heavy metal oxides, such as rhodium/platinum mixed oxides, for example with the Nishimura catalyst, preferably in a polar solvent, such as an alcohol, for example methanol or ethanol, at temperatures of from 0 to 80°C, especially from 10 to 40°C, and at a hydrogen pressure of from 1 to 10 atm, preferably at approximately normal pressure.
- a polar solvent such as an alcohol, for example methanol or ethanol
- the double bond can be reduced, especially by selective hydrogenation in the presence of catalysts, for example noble metal catalysts, such as platinum or especially palladium, which are present in free form or preferably bonded to a carrier, such as aluminium oxide or, especially, carbon, such as activated carbon.
- catalysts for example noble metal catalysts, such as platinum or especially palladium, which are present in free form or preferably bonded to a carrier, such as aluminium oxide or, especially, carbon, such as activated carbon.
- the hydrogenation is carried out preferably in a polar organic solvent, such as an alcohol, for example methanol or ethanol, at temperatures of from -10 to 60°C, especially at approximately room temperature.
- an unsubstituted or monosubstituted amino ⁇ carbonyl group for example unsubstituted or monosubstituted aminocarbonyl R j , can be alkylated.
- alkylation for the introduction of unsubstituted or substituted alkyl as defined for N-substituted aminocarbonyl Rj is carried out, for example, by alkylation with suitable starting materials.
- Suitable starting materials for the alkylation of a carboxamide group in a compound of formula I are, for example, diazo compounds, such as diazomethane.
- Diazomethane can be decomposed in an inert solvent, the free methylene formed reacting with the carboxamide group in the compound of formula I.
- the decomposition of diazomethane is effected preferably catalytically, for example in the presence of a noble metal in finely divided form, such as copper, or in the presence of a noble metal salt, for example copper(I) chloride or copper(II) sulfate.
- alkylating agents are compounds of formula VI
- A is unsubstituted or substituted alkyl as defined as substituent in substituted aminocarbonyl R l5 and L ⁇ is a nucleofugal leaving group as defined for L j in compounds of formula IV.
- the reaction is carried out preferably in the presence of bases under conditions analogous to those mentioned for the reaction of compounds of formula III with those of formula IV (Process b)).
- a preferred conversion is that of a stereoisomer of a compound of formula I into a different stereoisomer.
- a compound of formula la wherein Rj is hydrogen into a compound of formula lb as defined above (but wherein R hydrogen) and/or into a compound of formula Ic or Id
- Rj is hydrogen and the remaining radicals are as defined in the definition of compounds of formula I,
- the oxidative conversion is effected by suitable oxidising agents, especially by Swern oxidation (use of a combination of oxalyl chloride and dimethyl sulfoxide as oxidising agent in suitable solvents, such as halogenated hydrocarbons, for example methylene chloride, chloroform or tetrachloromethane, at preferred temperatures of from -30 to -78°C, especially approximately -60°C, preferably under a protective gas.
- suitable oxidising agents especially by Swern oxidation (use of a combination of oxalyl chloride and dimethyl sulfoxide as oxidising agent in suitable solvents, such as halogenated hydrocarbons, for example methylene chloride, chloroform or tetrachloromethane, at preferred temperatures of from -30 to -78°C, especially approximately -60°C, preferably under a protective gas.
- the subsequent racemisation of the oxo compound formed is effected preferably with a suitable strong base, such as l,5,7-triazabicyclo[4.4.0]dec-5-ene or also a metal alcoholate, such as an alkali metal alcoholate, for example sodium methoxide or ethoxide, in suitable inert solvents, such as ethers, for example diethyl ether or cyclic ethers, such as dioxane or especially tetrahydrofuran, at preferred temperatures of from 0 to 50°C, especially at approximately room temperature, preferably under a protective gas and in the presence of only catalytic amounts of the suitable strong base (for example in the range of from 1/10 to 1/50 of the molar amount of the oxo compound).
- a suitable strong base such as l,5,7-triazabicyclo[4.4.0]dec-5-ene or also a metal alcoholate, such as an alkali metal alcoholate, for example sodium methoxide or
- a suitable hydrogenation agent especially a suitable complex hydride, for example LiAlH[OC(CH 3 ) 3 ] 3 or also bis(3-methyl-but-2-yl)borane in an ether, such as tetrahydro ⁇ furan, or preferably sodium borohydride in an alcohol, such as a lower alkanol, for example methanol or ethanol, at preferred temperatures of from 0 to 50°C, for example at approximately room temperature.
- a suitable complex hydride for example LiAlH[OC(CH 3 ) 3 ] 3 or also bis(3-methyl-but-2-yl)borane in an ether, such as tetrahydro ⁇ furan, or preferably sodium borohydride in an alcohol, such as a lower alkanol, for example methanol or ethanol, at preferred temperatures of from 0 to 50°C, for example at approximately room temperature.
- the separation of the isomers can be effected as described above; for example, mixtures of diastereoisomers can be separated into the corresponding diastereoisomers by column chromatography on SiO 2 .
- any reference to the free compounds or their salts is to be understood as including also the corresponding salts or free compounds, respectively, as appropriate and expedient.
- reaction conditions known per se, preferably the reaction conditions specifically mentioned, in the absence or, usually, in the presence of solvents or diluents, preferably those solvents or diluents which are inert towards the reagents used and are solvents therefor, in the absence or presence of catalysts, condensation agents or neutralising agents, for example ion exchangers, such as cation exchangers, for example in the H + form, and depending upon the nature of the reaction and/or the reactants, at reduced, normal or elevated temperature, for example in a temperature range of from approximately -100°C to approximately 190°C, preferably from approximately -80°C to approximately 150°C, for example at from -80 to -60°C, at room temperature, at from -20 to 40°C or at reflux temperature, under atmospheric pressure, or in a closed vessel, optionally under pressure and/or in an inert atmosphere, for example under an argon or nitrogen atmosphere.
- solvents or diluents preferably those solvents or dil
- the solvents from which the solvents suitable for any particular reaction can be selected include, for example, water, esters, such as lower alkyl-lower alkanoates, for example ethyl acetate, ethers, such as aliphatic ethers, for example diethyl ether, or cyclic ethers, for example tetrahydrofuran, liquid aromatic hydrocarbons, such as benzene or toluene, alcohols, such as methanol, ethanol or 1- or 2-propanol, nitriles, such as acetonitrile, halogenated hydrocarbons, such as methylene chloride, bis-lower alkane sulfines, such as dimethyl sulfoxide, acid amides, such as N,N-di-lower alkyl-lower alkanoylamides, for example dimethylformamide or dimethylacetamide, bases, such as heterocyclic nitrogen bases, for example pyridine, carboxylic acid anhydrides, such
- the compounds, including their salts, may also be obtained in the form of hydrates, or their crystals may include, for example, the solvent used for crystallisation.
- the invention relates also to those forms of the process in which a compound obtainable as intermediate at any stage of the process is used as starting material and the remaining process steps are carried out, or in which a starting material is formed under the reaction conditions or is used in the form of a derivative, for example in protected form or in the form of a salt, or a compound obtainable in accordance with the process of the invention is produced under the process conditions and is processed further in situ.
- a starting material is formed under the reaction conditions or is used in the form of a derivative, for example in protected form or in the form of a salt, or a compound obtainable in accordance with the process of the invention is produced under the process conditions and is processed further in situ.
- reaction conditions analogous to those mentioned in the Examples are especially preferred.
- protected starting compounds can be used at any stage of the process and the protecting groups can be removed at suitable stages of the reaction.
- the present invention relates also to novel starting materials and intermediates and to processes for their preparation.
- the starting materials and the reaction conditions selected are preferably those which result in the compounds described as being preferred.
- the compounds of formula I used as starting compounds for Process c), especially of formula la or lb, wherein Rj is hydrogen, are obtained, for example, by, in a compound of formula II, especially ⁇ a or lib,
- Y t is a protecting group and also the remaining radicals are as defined, removing the protecting group Y j , especially tri-lower alkylsilyl, such as tert-butyl-dimethyl-silyl, under the conditions mentioned in the description of Process a) for the removal of protecting groups.
- Y 2 and Y 3 are each independently of the other one of the amino-protecting groups mentioned under Process a), especially tert-lower alkoxycarbonyl, such as tert-butoxy- carbonyl, and wherein the remaining radicals are as defined for compounds of formula I, with the introduction of a protecting group Yj (preferably not of the acyl type, in order to avoid acyl migrations), as described in the standard works mentioned under Process a), for example with a tri-lower alkylsilyl halide, such as a tri-lower alkylsilyl chloride, for example with tert-butyl-dimethyl-chlorosilane, in the presence of a nitrogen base with a hindered, for example tertiary amino group, such as a tri-lower alkylamine, for example ethyldiisopropylamine or triethylamine, or a cyclic tertiary amine, such as dimethylamino
- Y 2 and Y 3 are as defined for compounds of formula V ⁇
- Y j is as defined for compounds of formula n, especially tri-lower alkylsilyl, and the remaining radicals are as defined.
- the compounds of formula VIU are then converted, with selective removal of the protecting groups Y 2 and Y 3 (preferably tert-lower alkoxy carbonyl), as described under Process a), in known manner, for example with removal under acidic conditions, for example with a lower alkanecarboxylic acid or a halo-lower alkanecarboxylic acid, such as formic acid or trifluoroacetic acid, in the presence or absence of solvents, preferably in polar solvents, such as water, or ethers, preferably cycUc ethers, such as dioxane, or directly dissolved in a Uquid organic carboxylic acid, such as formic acid, into compounds of formula IX
- the compounds of formula U, or ⁇ a or lib can be obtained from the compounds of formula IX, or IXa or IXb, respectively, preferably by two methods.
- the first method leads, by way of the reaction of the compound of formula DC (or DCa or DCb) with an acid of formula X
- Y j is a protecting group as defined above and also the remaining radicals are as defined for compounds of formula II.
- the introduction of the radical -X- can also be carried out in stages by way of the radical -X-OH, or a reactive derivative thereof, which is singly bonded (to only one of the two nitrogen atoms of the compounds of formula DC) and then by again reacting the intermediate to form the compound of formula X.
- Reactive derivatives of compounds of formula X are preferably those of formula Xa,
- T ⁇ and Zj" are each independently of the other one of the radicals Z j mentioned for compounds of formula V or Va under Process c) (Z j ' and Z j " are preferably identical).
- the compounds of formula Xa can be formed in situ analogously to compounds of formula Va.
- reaction conditions for the acylation are analogous to those described under Process c).
- compounds of formula Xa wherein Z j ' and Z j " are both the same radical selected from halogen, such as chlorine or bromine, lower alkanoyloxy, such as acetyloxy, or 1 -imidazolyl are reacted, the reaction being carried out especially in an inert organic solvent, for example a suitable hydrocarbon, such as a liquid aromatic hydrocarbon, for example toluene or xylene, an ether, for example a cyclic ether, such as tetrahydrofuran or dioxane, or a halogenated, such as chlorinated, hydrocarbon, such as chloroform, methylene chloride or carbon tetrachloride, or mixtures of such solvents, in the absence or presence of an organic nitrogen base, especially a tertiary amine, for example tri-lower alkylamine, such as triethylamine, e
- X is a radical n , as
- cyano as R , Zj' and Zj" in compounds of formula Xa are preferably lower alkylthio, such as methylthio.
- the reaction is then carried out preferably in tertiary nitrogen bases, such as a tri-lower alkylamine, for example triethylamine or ethyldiisopropylamine, or a corresponding cyclic nitrogen base, such as pyridine, at temperatures of from 50°C to reflux temperature, especially at approximately reflux temperature, with the formation of the lower alkylmercaptan corresponding to the radicals ZJ'/ZJ", it also being possible for other solvents to be present.
- tertiary nitrogen bases such as a tri-lower alkylamine, for example triethylamine or ethyldiisopropylamine, or a corresponding cyclic nitrogen base, such as pyridine
- compounds of formula II can be obtained first by alkylating a compound of formula DC (especially IXa or DCb), with the introduction of a radical R 3 or R 4 (using a compound of formula IV, as described above), especially under conditions analogous to those described for the reaction of compounds of formula IH with those of formula IV under Process b).
- the reaction can, however, also be carried out in the absence of bases or in the presence of weaker bases, such as alkali metal alcoholates, for example sodium or potassium methanolate or ethanolate, tertiary nitrogen bases, such as tri-lower alkylamines, for example triethylamine or ethyldiisopropylamine, or 4-dimethyl- aminopyridine, pyridine or imidazole, under conditions of a first- or second-order nucleo- philic substitution, for example in the solvents and at the temperatures as described for Process b).
- weaker bases such as alkali metal alcoholates, for example sodium or potassium methanolate or ethanolate
- tertiary nitrogen bases such as tri-lower alkylamines, for example triethylamine or ethyldiisopropylamine, or 4-dimethyl- aminopyridine, pyridine or imidazole, under conditions of a first- or second-order nucleo- philic
- D is a radical that is analogous to the unsubstituted or substituted alkyl radicals defined for R 3 or R 4 in formula I and that carries at the carbon atom bonding the oxygen atom one hydrogen atom fewer than does the corresponding radical R 3 or R (which can accordingly contain only one bonding carbon atom carrying at least one further hydrogen atom), with hydrogenation in the presence of a catalyst, such as Raney nickel, at normal pressure or at pressures of from 0.1 to 10 MegaPascal (MPa), preferably approximately 10 MPa, or with reduction by means of complex hydrides, such as borohydrides, for example sodium cyanoborohydride.
- a catalyst such as Raney nickel
- R 2 R 2 are obtained wherein the radicals are as defined for compounds of formula I and Yj is as defined for compounds of formula DC.
- radicals are as defined for compounds of formula I, which compounds are then reacted analogously to the conditions mentioned for Process c) with an acid of formula V, or with a reactive derivative thereof, compounds of formula in then being obtained from compounds of formula XTV, in particular compounds of formula ffla being obtained from those of formula XTVa and compounds of formula nib being obtained from those of formula XlVb.
- compounds of formula VH preferably of formula VUa or VHb, can be prepared in accordance with the processes described in European Patent Application EP 0521 827 (Application number 92810490.0-2103), which was published on 7th January 1993. Under conditions analogous to the reaction conditions mentioned under Process a) of that AppUcation it is possible to react (instead of the compounds shown there of formula
- radicals are as defined for compounds of formula VII (and which correspond to the compounds of formula B), to yield compounds of formula VII (from XV), especially VUa (from XVa) or Vllb (from XVb).
- the reaction is carried out preferably at elevated temperature, for example at from 40°C to reflux temperature, especially at reflux temperature, in a polar organic solvent, especially an alcohol, such as a lower alkanol, for example methanol or ethanol, in the presence or absence of a protective gas, such as nitrogen or argon.
- compounds of formula XVb can be obtained by methods analogous to those used for obtaining compounds of formula XVa if (analogously to the multi-stage reaction in EP 0521 827, where a compound of formula Aa shown above is obtained from the N-protected amino acids of formula
- R 2 wherein the radicals are as defined above for compounds of formula VII, is reacted to form the epoxide of formula XVb.
- the invention relates also to pharmaceutical compositions comprising compounds of formula I or U" .
- the pharmacologically acceptable compounds of the present invention may be used, for example, in the preparation of pharmaceutical compositions that comprise an effective amount of the active ingredient together or in admixture with a significant amount of inorganic or organic, solid or Uquid, pharmaceutically acceptable carriers.
- the invention relates also to a pharmaceutical composition suitable for administration to a warm-blooded animal, especiaUy a human being, for the treatment or prevention of a disease responsive to the inhibition of a retroviral protease, especiaUy a retroviral aspartate protease, such as HIV-I- or HTV-II-gag-protease, for example for the treatment or prevention of a retoviral disease, such as AIDS, comprising an amount of a compound of formula I or II", or of a pharmaceuticaUy acceptable salt thereof, that is effective in the inhibition of the retroviral protease, together with at least one pharmaceutically acceptable carrier.
- a retroviral protease especiaUy a human being
- a retroviral aspartate protease such as HIV-I- or HTV-II-gag-protease
- a retoviral disease such as AIDS
- compositions for enteral such as nasal, rectal or oral, or parenteral, such as intramuscular or intravenous, admin ⁇ istration to warm-blooded animals (human beings and animals) that comprise an effective dose of the pharmacological active ingredient alone or together with a significant amount of a pharmaceutically acceptable carrier.
- the dose of the active ingredient depends on the species of warm-blooded animal, body weight, age and individual condition, individual pharmacokinetic data, the disease to be treated and the mode of administration.
- the invention relates also to a method of treating diseases caused by viruses, especially retroviruses, for example AIDS, wherein a therapeutically effective amount of a compound of formula I or IF ' according to the invention is administered especially to a warm-blooded animal, for example a human being, who on account of one of the mentioned diseases, especially AIDS, requires such treatment.
- the dose to be adminis ⁇ tered to warm-blooded animals, for example human beings of approximately 70 kg body weight is from approximately 3 mg to approximately 3 g, preferably from approximately 10 mg to approximately 1.5 g, for example approximately from 100 mg to 1000 mg per person per day, divided preferably into 1 to 3 single doses which may, for example, be of the same size.
- UsuaUy, chUdren receive half of the adult dose.
- compositions comprise from approximately 1 % to approximately 95 %, preferably from approximately 20 % to approximately 90 , active ingredient.
- Pharmaceutical compositions according to the invention may be, for example, in unit dose form, such as in the form of ampoules, vials, suppositories, dragees, tablets or capsules.
- compositions of the present invention are prepared in a manner known per se, for example by means of conventional dissolving, lyophilising, mixing, granulating or confectioning processes.
- Solutions of the active ingredient, and also suspensions, and especiaUy isotonic aqueous solutions or suspensions are preferably used, it being possible, for example in the case of lyophilised compositions that comprise the active ingredient alone or together with a carrier, for example mannitol, for such solutions or suspensions to be made up prior to use.
- the pharmaceutical compositions may be sterilised and/or may comprise excipients, for example preservatives, stabiUsers, wetting agents and/or emulsifiers, solubilisers, salts for regulating the osmotic pressure and/or buffers, and are prepared in a manner known per se, for example by means of conventional dissolving or lyophilising processes.
- the said solutions or suspensions may comprise viscosity-increasing substances, such as sodium carboxymethylceUulose, carboxymethylcellulose, dextran, polyvinylpyrroUdone or gelatin.
- Suspensions in oil comprise as the oil component the vegetable, synthetic or semi- synthetic oils customary for injection purposes.
- espe- cially liquid fatty acid esters that contain as the acid component a long-chained fatty acid having from 8 to 22, especially from 12 to 22, carbon atoms, such as, for example, lauric acid, tridecylic acid, myristic acid, pentadecylic acid, palmitic acid, margaric acid, stearic acid, arachidic acid, behenic acid or corresponding unsaturated acids, such as, for example, oleic acid, elaidic acid, erucic acid, brassidic acid or linoleic acid, where appropriate with the addition of antioxidants, such as, for example, vitamin E, ⁇ -carotene or 3,5-di-tert-butyl-4-hydroxytoluene.
- antioxidants such as, for example, vitamin E, ⁇ -carotene or 3,5-di-tert-butyl-4-
- the alcohol component of those fatty acid esters has a maximum of 6 carbon atoms and is a mono- or poly-hydric, for example a mono-, di- or tri-hydric, alcohol, for example methanol, ethanol, propanol, butanol or pentanol or the isomers thereof, but especially glycol and glycerol.
- fatty acid esters are therefore to be mentioned: ethyl oleate, isopropyl myristate, isopropyl palmitate, "Labrafil M 2375” (polyoxyethylene glycerol trioleate, Gattefosse, Paris), "Miglyol 812” (triglyceride of saturated fatty acids with a chain length of C 8 to C 12 , Hiils AG, Germany), but especially vegetable oils, such as cottonseed oil, almond oil, olive oil, castor oil, sesame oil, soybean oil and more especially groundnut oil.
- vegetable oils such as cottonseed oil, almond oil, olive oil, castor oil, sesame oil, soybean oil and more especially groundnut oil.
- the injection compositions are prepared in customary manner under sterile conditions; the same applies also to introducing the compositions into ampoules or vials and sealing the containers.
- compositions for oral administration can be obtained by combining the active ingredient with solid carriers, if desired granulating a resulting mixture, and processing the mixture, if desired or necessary, after the addition of appropriate excipients, into tablets, dragee cores or capsules. It is also possible for the active ingredients to be incorporated into plastics carriers that allow the active ingredients to diffuse or be released in measured amounts.
- Suitable carriers are especially fillers, such as sugars, for example lactose, saccharose, mannitol or sorbitol, cellulose preparations and/or calcium phosphates, for example tri- calcium phosphate or calcium hydrogen phosphate, and also binders, such as starch pastes using, for example, corn, wheat, rice or potato starch, gelatin, tragacanth, methylcellulose, hydroxypropylmethylcellulose, sodium carboxymethylcellulose and/or poly vinyl- pyrrolidone, and/or, if desired, disintegrators, such as the above-mentioned starches, also carboxymethyl starch, crosslinked polyvinylpyrrolidone, agar, alginic acid or a salt thereof, such as sodium alginate.
- fillers such as sugars, for example lactose, saccharose, mannitol or sorbitol
- cellulose preparations and/or calcium phosphates for example tri- calcium phosphate or calcium hydrogen phosphate
- Excipients are especially flow conditioners and lubricants, for example silicic acid, talc, stearic acid or salts thereof, such as magnesium or calcium stearate, and/or polyethylene glycol.
- Dragee cores are provided with suitable, optionally enteric, coatings, there being used, inter alia, concentrated sugar solutions which may comprise gum arabic, talc, polyvinylpyrrolidone, polyethylene glycol and/or titanium dioxide, or coating solutions in suitable organic solvents, or, for the preparation of enteric coatings, solutions of suitable cellulose preparations, such as ethylcellulose phthalate or hydroxypropylmethylcellulose phthalate.
- Capsules are dry-filled capsules made of gelatin and also soft, sealed capsules made of gelatin and a plasticiser, such as glycerol or sorbitol.
- the dry-filled capsules may comprise the active ingredient in the form of granules, for example with fillers, such as lactose, binders, such as starches, and/or glidants, such as talc or magnesium stearate, and if desired with stabilisers.
- the active ingredient is preferably dissolved or suspended in suitable oily excipients, such as fatty oils, paraffin oil or liquid polyethylene glycols, it likewise being possible for stabilisers and/or antibacterial agents to be added.
- Dyes or pigments may be added to the tablets or dragee coatings or to the capsule casings, for example for identifi ⁇ cation purposes or to indicate different doses of active ingredient.
- R f values which indicate the ratio of the seepage propagation of the substance in question to the seepage propagation of the eluant front, are determined on thin-layer silica gel plates by thin-layer chromatography (TLC) in the following solvent systems:
- R f (A) indicates, for example, that the R f value was determined in solvent system A.
- the quantitative ratio of solvents to one another is always indicated in parts by volume.
- Mass spectroscopic data are obtained either by conventional MS or in accordance with the "Fast Atom Bombardment” (FAB-MS) method.
- the mass data relate in the first instance to the unprotonated molecule ion (M) + or, in the second case, the protonated molecule ion (M+H) + .
- residue with the abbreviation -[Phe NN Leu] denotes the bivalent residue of 3(S)- amino-4-phenyl-l-(N-isobutylhydrazino)-butan-2(S)-ol and has the formula
- residue with the abbreviation -[(p-F)Phe NN (p-F)Phe] denotes the bivalent residue of 3(S)-amino-4-(p-fluorophenyl)-l-(N-(p-fluorophenylmethyl)-hydrazino)-butan-2(S)-ol and has the formula
- the configuration at the ⁇ -carbon atom is indicated by prefixing (L) or (D).
- Tyrosine residues etherified by the radical R at the phenolic hydroxy group have the abbreviation Tyr(OR).
- Nle indicates the residue of norleucine.
- the starting material is prepared as follows: a) tert-butyl-3-cvclohexy ⁇ methyl-carbazate:
- the starting material is prepared as follows: a) N-Boc-(p-fluorophenylalanine):
- the batch is acidified with 10 % citric acid, some of the THF is evaporated off using a RE and the residue is partitioned between 3 portions of ethyl acetate, 2 portions of 2N sodium hydroxide solution, water, sat. sodium hydrogen carbonate solution and brine.
- the starting material is prepared as follows: a) tert-butyl-3-(4-cvanophenyl-methyl)-carbazate:
- the starting material is prepared as follows: a) tert-butyl-3-butyl-carbazate:
- Example 1 (5(S),6(S))-5-benzyl-2,4-bis(4-fluorophenylmethyl)-l-cvclohexylmethyl- 6-hydroxy- 1 ,2,4-triazepan-3-one :
- the starting material is prepared as follows: a) 3(S)-(Boc-amino)-4-phenyl-l-(2-Boc-l-cvclohexylmethylhvdrazino)-2(S)-((tert- butoxydimethylsilyl)oxy)-butane:
- the starting material is prepared as follows: a) (5(S),6(S))-5-benzyl-2,4-diallyl-6-(tert-butyldimethylsilyloxy)-l-cyclohexylmethyl- 1 ,2,4-triazepan-3-one
- the starting material is prepared as follows: a) 3(R)-(Boc-amino)-4-phenyl-l-(2-Boc-l-cvclohexylmethylhydrazino)-butan-2(R)-ol: Under a protective gas, a solution of 3.75 g (14.2 mmol) of (2S)-[l'(R)-Boc-amino-2'- phenylethyl]oxirane [prepared analogously to (2R)-[ (S)-Boc-amino-2'-phenylethyl]- oxirane (EP-532466-A2, page 42) from (D)-N-Boc-phenylalaninal instead of (L)-N-Boc- phenylalaninal] and 3.24 g (14.2 mmol) of tert-butyl-3-benzyl-carbazate (J.
- the starting material is prepared as follows: a) (5Q ⁇ ),6(R))-5-benzyl-2,4-diallyl-6-(tert-butyldimethylsilyloxy)-l-cvclohexylmethyl- 1 ,2,4-triazepan-3-one
- the starting material is prepared as follows: a) (5(S),6(S))-5-benzyl-2,4-bis(4-methoxy-phenylmethvI)-6-(tert-butyldimethylsilyloxy)- 1 -cyclohexylmethyl- 1 ,2,4-triazepan-3-one:
- Example 8 -.-r(5(R).6(R))/(5(S),6(S))l-5-benzyl-l-cvclohexylmethyl-2,4-bis(4- methoxy-phenylmethyl)-6-hydroxy- 1 ,2,4- triazepan-3-one and trfl «-.-r(5(R),6(S))/(5(S),6(R))1-5-benzyl-l-cvclohexylmethyl-2,4-bis(4-methoxy-phenyl- methyl)-6-hvdroxy-l,2,4-triazepan-3-one (in racemate form): Under a protective gas, 7.7 mg (0.206 mmol) of NaBH 4 are added to an ice-cooled solution of 104 mg (0.187 mmol) of (5(R/S))-5-benzyl-l-cyclohexylmethyl-2,4-bis(4- methoxy-phenylmethyl)
- reaction mixture After stirring for 35 min, the reaction mixture is adjusted to pH 6-7 with acetic acid and concentrated by evaporation using a RE. The residue is taken up in methylene chloride and the resulting solution is washed with water and brine, dried with Na 2 SO and concentrated by evapor ⁇ ation.
- the starting material is prepared as follows: a) (5(S))-5-benzyl-l-cvclohexylmethyl-2.4-bis(4-methoxy-phenylmethyl)-6-oxo-l,2,4-tri- azepan-3-one:
- a sterile-filtered aqueous solution, with 20 % cyclodextrins as solubilisers, of one of the compounds of formula I mentioned in the above Examples, as active ingredient, is so mixed under aseptic conditions, with heating, with a sterile gelatin solution containing phenol as preservative that 1.0 ml of solution has the following composition: active ingredient 3 mg gelatin 150.0 mg phenol 4.7 mg dist. water with 20 % cyclodextrins as solubiUsers 1.0 ml
- Example 10 Sterile dry substance for injection:
- 5 mg of one of the compounds of formula I mentioned in the above Examples are dissolved as active ingredient in 1 ml of an aqueous solution containing 20 mg of mannitol and 20 % cyclodextrins as solubiUsers.
- the solution is sterile-filtered and introduced into a 2 ml ampoule under aseptic conditions, deep-frozen and lyophilised.
- the lyophilisate is dissolved in 1 ml of distilled water or 1 ml of physiological saline solution.
- the solution is administered intramuscularly or intravenously.
- the formulation can also be introduced into double-chamber disposable ampoules.
- 500 mg of finely ground ( ⁇ 5.0 ⁇ m) powder of one of the compounds of formula I mentioned in the above Examples are suspended as active ingredient in a mixture of 3.5 ml of Myglyol 812® and 0.08 g of benzyl alcohol.
- the suspension is introduced into a container having a metering valve.
- 5.0 g of Freon 12® are introduced into the container through the valve under pressure.
- the "Freon” is dissolved in the Myglyol-benzyl alcohol mixture by shaking.
- the spray container contains approximately 100 single doses which can be administered individually.
- Example 12 Film-coated tablets
- the dried granules are pressed through a sieve of 1 mm mesh size, mixed with a previously sieved mixture (1 mm sieve) of 330 g of com starch, the magnesium stearate, the stearic acid and the sodium carboxymethyl starch and compressed to form slighdy biconvex tablets.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/581,508 US5670497A (en) | 1993-07-14 | 1994-07-07 | Cyclic hydrazine compounds |
AU74916/94A AU7491694A (en) | 1993-07-14 | 1994-07-07 | Cyclic hydrazine compounds |
EP94924725A EP0708760A1 (en) | 1993-07-14 | 1994-07-07 | Cyclic hydrazine compounds |
JP7504329A JPH09500120A (en) | 1993-07-14 | 1994-07-07 | Cyclic hydrazine compound |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH211493 | 1993-07-14 | ||
CH2114/93-9 | 1993-07-14 | ||
CH3333/93-4 | 1993-11-05 | ||
CH333393 | 1993-11-05 |
Publications (1)
Publication Number | Publication Date |
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WO1995002582A1 true WO1995002582A1 (en) | 1995-01-26 |
Family
ID=25689553
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/002235 WO1995002582A1 (en) | 1993-07-14 | 1994-07-07 | Cyclic hydrazine compounds |
Country Status (5)
Country | Link |
---|---|
US (1) | US5670497A (en) |
EP (1) | EP0708760A1 (en) |
JP (1) | JPH09500120A (en) |
AU (1) | AU7491694A (en) |
WO (1) | WO1995002582A1 (en) |
Cited By (9)
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EP0690066A1 (en) * | 1994-06-30 | 1996-01-03 | Hoechst Aktiengesellschaft | Phosphinic acid derivatives, their preparation as well as their use |
WO1996005180A1 (en) * | 1994-08-09 | 1996-02-22 | Abbott Laboratories | Retroviral protease inhibiting 1,2,4-triazacycloheptanes |
WO1996014314A2 (en) * | 1994-11-04 | 1996-05-17 | Gilead Sciences, Inc. | Thiepane compounds inhibiting and detecting hiv protease |
US5705524A (en) * | 1994-11-04 | 1998-01-06 | Gilead Sciences, Inc. | Thiepane compounds |
US5753652A (en) * | 1991-07-03 | 1998-05-19 | Novartis Corporation | Antiretroviral hydrazine derivatives |
US5849911A (en) * | 1996-04-22 | 1998-12-15 | Novartis Finance Corporation | Antivirally active heterocyclic azahexane derivatives |
US6034118A (en) * | 1994-11-04 | 2000-03-07 | Gilead Sciences, Inc. | Thiepane compounds |
WO2007074171A1 (en) * | 2005-12-29 | 2007-07-05 | Immupharma France Sa | Aza heterocyclics for the treatment of malaria or aids |
US7777030B2 (en) | 2005-12-29 | 2010-08-17 | Centre National de la Recherge Scientifique (CNRS) | Compositions and methods for the treatment and prevention of disease |
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US5663333A (en) * | 1992-10-22 | 1997-09-02 | The Dupont Merck Pharmaceutical Company | Substituted 1,4-diazapine caprolactams useful for treatment of HIV disease |
US20050239054A1 (en) * | 2002-04-26 | 2005-10-27 | Arimilli Murty N | Method and compositions for identifying anti-HIV therapeutic compounds |
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US7470724B2 (en) * | 2003-04-25 | 2008-12-30 | Gilead Sciences, Inc. | Phosphonate compounds having immuno-modulatory activity |
US20050261237A1 (en) * | 2003-04-25 | 2005-11-24 | Boojamra Constantine G | Nucleoside phosphonate analogs |
US20090247488A1 (en) * | 2003-04-25 | 2009-10-01 | Carina Cannizzaro | Anti-inflammatory phosphonate compounds |
US7432261B2 (en) * | 2003-04-25 | 2008-10-07 | Gilead Sciences, Inc. | Anti-inflammatory phosphonate compounds |
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US20050153990A1 (en) * | 2003-12-22 | 2005-07-14 | Watkins William J. | Phosphonate substituted kinase inhibitors |
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JP5620376B2 (en) | 2008-07-08 | 2014-11-05 | ギリアード サイエンシーズ, インコーポレイテッド | Salts of HIV inhibitor compounds |
US10851125B2 (en) | 2017-08-01 | 2020-12-01 | Gilead Sciences, Inc. | Crystalline forms of ethyl ((S)-((((2R,5R)-5-(6-amino-9H-purin-9-yl)-4-fluoro-2,5-dihydrofuran-2-yl)oxy)methyl)(phenoxy)phosphoryl(-L-alaninate |
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- 1994-07-07 JP JP7504329A patent/JPH09500120A/en not_active Ceased
- 1994-07-07 AU AU74916/94A patent/AU7491694A/en not_active Abandoned
- 1994-07-07 WO PCT/EP1994/002235 patent/WO1995002582A1/en not_active Application Discontinuation
- 1994-07-07 EP EP94924725A patent/EP0708760A1/en not_active Withdrawn
- 1994-07-07 US US08/581,508 patent/US5670497A/en not_active Expired - Fee Related
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DE2230979A1 (en) * | 1972-06-22 | 1974-01-10 | Schering Ag | Cyclic sulphonamide heterocyclics - useful as inters for pharmaceuticals and as monomers |
WO1992009297A1 (en) * | 1990-11-30 | 1992-06-11 | Smithkline Beecham Corporation | Hiv protease inhibitors |
WO1993007128A1 (en) * | 1991-10-11 | 1993-04-15 | The Du Pont Merck Pharmaceutical Company | Cyclic ureas and analogues useful as retroviral protease inhibitiors |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5753652A (en) * | 1991-07-03 | 1998-05-19 | Novartis Corporation | Antiretroviral hydrazine derivatives |
US5707979A (en) * | 1994-06-30 | 1998-01-13 | Hoechst Aktiengesellschaft | Phosphinic acid derivatives, their preparation and their use |
EP0690066A1 (en) * | 1994-06-30 | 1996-01-03 | Hoechst Aktiengesellschaft | Phosphinic acid derivatives, their preparation as well as their use |
WO1996005180A1 (en) * | 1994-08-09 | 1996-02-22 | Abbott Laboratories | Retroviral protease inhibiting 1,2,4-triazacycloheptanes |
WO1996014314A3 (en) * | 1994-11-04 | 1996-06-20 | Gilead Sciences Inc | Thiepane compounds inhibiting and detecting hiv protease |
US5705524A (en) * | 1994-11-04 | 1998-01-06 | Gilead Sciences, Inc. | Thiepane compounds |
WO1996014314A2 (en) * | 1994-11-04 | 1996-05-17 | Gilead Sciences, Inc. | Thiepane compounds inhibiting and detecting hiv protease |
US6034118A (en) * | 1994-11-04 | 2000-03-07 | Gilead Sciences, Inc. | Thiepane compounds |
US5849911A (en) * | 1996-04-22 | 1998-12-15 | Novartis Finance Corporation | Antivirally active heterocyclic azahexane derivatives |
US6110946A (en) * | 1996-04-22 | 2000-08-29 | Novartis Finance Corporation | Antivirally active heterocyclic azahexane derivatives |
US6166004A (en) * | 1996-04-22 | 2000-12-26 | Novartis Finance Corporation | Combinations of HIV protease inhibitors with reverse transcriptase inhibitors |
US6300519B1 (en) | 1996-04-22 | 2001-10-09 | Novartis Finance Corporation | Antivirally active heterocyclic azahexane derivatives |
WO2007074171A1 (en) * | 2005-12-29 | 2007-07-05 | Immupharma France Sa | Aza heterocyclics for the treatment of malaria or aids |
US7777030B2 (en) | 2005-12-29 | 2010-08-17 | Centre National de la Recherge Scientifique (CNRS) | Compositions and methods for the treatment and prevention of disease |
Also Published As
Publication number | Publication date |
---|---|
US5670497A (en) | 1997-09-23 |
EP0708760A1 (en) | 1996-05-01 |
JPH09500120A (en) | 1997-01-07 |
AU7491694A (en) | 1995-02-13 |
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