HK1050686A1 - New camptothecin analogues, preparation methods thereof, use thereof as drugs, and pharmaceutical compositions containing them - Google Patents

New camptothecin analogues, preparation methods thereof, use thereof as drugs, and pharmaceutical compositions containing them

Info

Publication number
HK1050686A1
HK1050686A1 HK03102868A HK03102868A HK1050686A1 HK 1050686 A1 HK1050686 A1 HK 1050686A1 HK 03102868 A HK03102868 A HK 03102868A HK 03102868 A HK03102868 A HK 03102868A HK 1050686 A1 HK1050686 A1 HK 1050686A1
Authority
HK
Hong Kong
Prior art keywords
drugs
pharmaceutical compositions
hydroxy
compositions containing
lower alkyl
Prior art date
Application number
HK03102868A
Inventor
Dennis Bigg
Olivier Lavergne
Francesc Pla Rodas
Jacques Pommier
Gerard Ulibarri
Original Assignee
Sod Conseils Rech Applic
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB9512670.2A external-priority patent/GB9512670D0/en
Application filed by Sod Conseils Rech Applic filed Critical Sod Conseils Rech Applic
Publication of HK1050686A1 publication Critical patent/HK1050686A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/22—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains four or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/62—Oxygen or sulfur atoms
    • C07D213/63—One oxygen atom
    • C07D213/64—One oxygen atom attached in position 2 or 6
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/47—Quinolines; Isoquinolines
    • 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
    • A61P33/00—Antiparasitic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P33/00—Antiparasitic agents
    • A61P33/02—Antiprotozoals, e.g. for leishmaniasis, trichomoniasis, toxoplasmosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/61—Halogen atoms or nitro radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/12—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains three hetero rings
    • C07D471/14—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
    • C07D491/04—Ortho-condensed systems

Abstract

Camptothecin analogues where the camptothecin hydroxy lactone is: (i) a beta -hydroxy lactone; or (ii) the corresp. beta -hydroxy acid resulting from ring-opening of the aforementioned lactone; or a (iii) deriv. of the beta -hydroxy acid in (ii) or its one of its salts. Also claimed are new industrial prods. of formula (M) and (A). R1 = lower alkyl, lower alkenyl, lower alkynyl, halo(lower alkyl), lower alkoxy(lower alkyl) or lower alkylthio(lower alkyl); R20 = H or halo; R22 = F, Cl, or lower alkoxy; R23 = prim. hydroxy-protecting gp.; and R18, R19 = H, halo, lower alkyl, lower alkoxy or OH.
HK03102868A 1995-06-21 2003-04-23 New camptothecin analogues, preparation methods thereof, use thereof as drugs, and pharmaceutical compositions containing them HK1050686A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9512670.2A GB9512670D0 (en) 1995-06-21 1995-06-21 Camptothecin analogues
US61047696A 1996-03-04 1996-03-04

Publications (1)

Publication Number Publication Date
HK1050686A1 true HK1050686A1 (en) 2003-07-04

Family

ID=26307258

Family Applications (3)

Application Number Title Priority Date Filing Date
HK99100955A HK1015783A1 (en) 1995-06-21 1999-03-09 Camptothecin analogues, preparation methods therefor, use thereof as drugs, and pharmaceutical compositions containing said analogues
HK03102868A HK1050686A1 (en) 1995-06-21 2003-04-23 New camptothecin analogues, preparation methods thereof, use thereof as drugs, and pharmaceutical compositions containing them
HK03109070A HK1056726A1 (en) 1995-06-21 2003-12-12 Pyridone compound and preparation thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK99100955A HK1015783A1 (en) 1995-06-21 1999-03-09 Camptothecin analogues, preparation methods therefor, use thereof as drugs, and pharmaceutical compositions containing said analogues

Family Applications After (1)

Application Number Title Priority Date Filing Date
HK03109070A HK1056726A1 (en) 1995-06-21 2003-12-12 Pyridone compound and preparation thereof

Country Status (24)

Country Link
EP (2) EP0835258B1 (en)
JP (2) JP3576171B2 (en)
KR (1) KR100440838B1 (en)
CN (1) CN1114608C (en)
AT (2) ATE224900T1 (en)
AU (1) AU716377B2 (en)
BR (1) BR9608639A (en)
CA (1) CA2225528C (en)
CL (1) CL2004001168A1 (en)
CZ (1) CZ296156B6 (en)
DE (2) DE69623961T2 (en)
DK (2) DK0835258T3 (en)
ES (2) ES2254600T3 (en)
HK (3) HK1015783A1 (en)
IL (2) IL122635A (en)
MX (1) MX9710228A (en)
NO (1) NO316749B1 (en)
NZ (1) NZ312715A (en)
PL (1) PL185354B1 (en)
PT (1) PT835258E (en)
RO (1) RO117918B1 (en)
RU (1) RU2164515C2 (en)
TW (1) TW457234B (en)
WO (1) WO1997000876A1 (en)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790261B1 (en) * 1999-02-26 2004-09-10 Sod Conseils Rech Applic NOVEL OPTICALLY PURE CAMPTOTHECIN ANALOGS AND PROCESSES FOR THEIR PREPARATION
FR2757515B1 (en) * 1996-12-20 2000-05-05 Sod Conseils Rech Applic PRODROUGAL FORMS AND NEW CAMPTOTHECIN ANALOGS, PROCESSES FOR THEIR PREPARATION, THEIR USE AS MEDICAMENTS AND THE PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
FR2768431B1 (en) * 1997-08-29 2000-03-24 Sod Conseils Rech Applic NOVEL OPTICALLY PURE CAMPTOTHECIN ANALOGS, A NEW OPTICALLY PURE SYNTHESIS INTERMEDIATE AND PROCESS FOR PREPARING THE SAME
FR2757514B1 (en) * 1996-12-20 1999-02-12 Sod Conseils Rech Applic NOVEL CAMPTOTHECIN ANALOGS, PREPARATION METHODS, USE THEREOF AS MEDICAMENTS AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
US6559309B2 (en) * 1996-11-01 2003-05-06 Osi Pharmaceuticals, Inc. Preparation of a camptothecin derivative by intramolecular cyclisation
UA57757C2 (en) * 1996-12-20 2003-07-15 Сос'Єте Де Консей Де Решерш Е Даплікасьон С'Єнтіфік (С.К.Р.А.С.) FORMS OF PRODRUGS AND NEW ANALOGUES OF camptothecin, THEIR APPLICATION AS MEDICINES
FR2772763B1 (en) * 1997-12-24 2004-01-23 Sod Conseils Rech Applic NOVEL TETRACYCLIC CAMPTOTHECIN ANALOGS, PROCESSES FOR THEIR PREPARATION, THEIR USE AS MEDICAMENTS AND THE PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
DE19826499A1 (en) * 1998-06-13 1999-12-16 Beiersdorf Ag Use of lactone, thiolactone and/or dithiolactone derivatives
US6207832B1 (en) * 1999-04-09 2001-03-27 University Of Pittsburgh Camptothecin analogs and methods of preparation thereof
US6566372B1 (en) 1999-08-27 2003-05-20 Ligand Pharmaceuticals Incorporated Bicyclic androgen and progesterone receptor modulator compounds and methods
WO2001016133A2 (en) 1999-08-27 2001-03-08 Ligand Pharmaceuticals Incorporated 8-substituted-6-trifluoromethyl-9-pyrido[3,2-g]quinoline compounds as androgen receptor modulators
JP2003508402A (en) 1999-08-27 2003-03-04 リガンド・ファーマシューティカルズ・インコーポレイテッド Androgen receptor modulator compounds and methods
JP2003529545A (en) 1999-09-14 2003-10-07 リガンド・ファーマシューティカルズ・インコーポレイテッド RXR modulators with improved pharmacological profiles
FR2801309B1 (en) * 1999-11-18 2002-01-04 Adir NOVEL CAMPTOTHECIN-LIKE COMPOUNDS, PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
DE60124387T2 (en) 2000-02-28 2007-10-11 Pfizer Enterprises Sarl. Synergistic pharmaceutical compositions for the treatment of colorectal cancer
US6486320B2 (en) 2000-09-15 2002-11-26 Aventis Pharma S.A. Preparation of camptothecin and of its derivatives
AU2002216029B2 (en) 2000-10-27 2006-01-05 Pfizer, Inc. A combination comprising camptothecin and a stilbene derivative for the treatment of cancer
US6372906B1 (en) 2001-04-12 2002-04-16 University Of Pittsburgh Synthesis of silyl camptothecins and silyl homocamptothecins
FR2825278A1 (en) * 2001-05-30 2002-12-06 Sod Conseils Rech Applic PRODUCT COMPRISING MIKANOLIDE, DIHYDROMIKANOLIDE OR AN ANALOGUE THEREOF IN ASSOCIATION WITH ANOTHER ANTI-CANCER AGENT FOR THERAPEUTIC USE IN THE TREATMENT OF CANCER
US6723853B2 (en) 2001-08-27 2004-04-20 University Of Pittsburgh Intermediates and methods of preparation of intermediates in the enantiomeric synthesis of (20R)homocamptothecins and the enantiomeric synthesis of (20R)homocamptothecins
AU2003225642A1 (en) * 2002-03-01 2003-09-16 Fluorous Techonologies Inc Mappicine analogs, intermediates in the synthesis of mappicine analogs and methods of synthesis of mappicine analogs
ITRM20020305A1 (en) * 2002-05-31 2003-12-01 Sigma Tau Ind Farmaceuti CAMPTOTECINE WITH MODIFIED LATTON RING.
ITRM20030344A1 (en) * 2003-07-14 2005-01-15 Ist Naz Stud Cura Dei Tumori 7-N-POLIAMMINOALCHIL (BONES) IMMINOMETILCAMPTOTECINE BETWEEN PROTECTIVE GROUPS.
CN100408582C (en) * 2004-02-12 2008-08-06 中国人民解放军第二军医大学 Homocamptoth-ecine compounds, their preparation process and use
ITRM20040288A1 (en) * 2004-06-11 2004-09-11 Sigma Tau Ind Farmaceuti USE OF 7-T-BUTOXYIMINOMETHYL CAMPTOTECIN FOR THE PREPARATION OF A MEDICATION FOR THE TREATMENT OF UTERUS NEOPLASIES.
WO2006069344A2 (en) 2004-12-22 2006-06-29 Rutgers, The State University Of New Jersey Controlled release hydrogels
CN100339377C (en) * 2005-09-05 2007-09-26 合肥中科大生物技术有限公司 Camptothecine derivative and its preparation
CN1319971C (en) * 2005-09-09 2007-06-06 合肥中科大生物技术有限公司 Camptothecine derivatives and their use
CN100465175C (en) * 2005-11-29 2009-03-04 中国人民解放军第二军医大学 7-bit substituted comptothecine kind compound and pharmaceutical use thereof
CN1319970C (en) * 2005-12-30 2007-06-06 合肥中科大生物技术有限公司 Camptothecin derivative used as anti-tumor agent and preparation method thereof
AU2007232206B2 (en) 2006-03-30 2013-04-04 Drais Pharmaceuticals, Inc. Camptothecin-cell penetrating peptide conjugates and pharmaceutical compositions containing the same
JP5232770B2 (en) * 2006-04-19 2013-07-10 バイオニューメリック・ファーマスーティカルズ・インコーポレイテッド Novel "inverted" lactone-stable camptothecin analogs having an E-ring and methods for making and using the same
CN101220037B (en) * 2008-01-31 2011-02-16 中国人民解放军第二军医大学 10-substitution homocamptothecin compounds and uses
CN100592871C (en) * 2008-03-14 2010-03-03 浙江林学院 Insecticide composition and its processing method
CN101979392A (en) * 2010-09-26 2011-02-23 中国人民解放军第二军医大学 7-arylethylene substituted high camptothecin compound and application thereof as medicament
US20140086975A1 (en) 2010-10-15 2014-03-27 Rutgers, The State University Of New Jersey Hydrogel formulation for dermal and ocular delivery
CN102746314B (en) * 2011-04-18 2016-07-06 华东师范大学 Containing stablizing the camptothecine compounds of 7 yuan of lactonic rings, preparation method and purposes
CN105601641B (en) * 2015-12-22 2018-01-16 兰州大学 7 piperazine sulfonamide camptothecine compounds, Preparation method and uses
CN106478648B (en) * 2016-09-21 2018-11-06 桑迪亚医药技术（上海）有限责任公司 A kind of hCPT compound and its synthetic method
CN111777608B (en) * 2020-07-08 2021-08-03 湖北精瑜材料有限公司 Novel plant modified quinoline quaternary ammonium salt compound, preparation method and application
WO2023232145A1 (en) * 2022-06-02 2023-12-07 华东师范大学 Small molecule of homocamptothecins and use thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5162532A (en) * 1990-12-20 1992-11-10 North Carolina State University Intermediates and method of making camptothecin and camptothecin analogs
US5391745A (en) * 1992-07-23 1995-02-21 Sloan-Kettering Institute For Cancer Research Methods of preparation of camptothecin analogs

Also Published As

Publication number Publication date
NO316749B1 (en) 2004-04-26
IL122635A0 (en) 1998-08-16
EP1251125A2 (en) 2002-10-23
DE69635560D1 (en) 2006-01-12
EP1251125A3 (en) 2002-12-11
EP0835258B1 (en) 2002-09-25
CN1114608C (en) 2003-07-16
CL2004001168A1 (en) 2005-05-20
ATE224900T1 (en) 2002-10-15
DE69623961T2 (en) 2003-05-08
AU6460896A (en) 1997-01-22
HK1015783A1 (en) 1999-10-22
IL122635A (en) 2001-10-31
EP1251125B1 (en) 2005-12-07
PL324339A1 (en) 1998-05-25
RU2164515C2 (en) 2001-03-27
IL128044A0 (en) 1999-11-30
HK1056726A1 (en) 2004-02-27
PT835258E (en) 2003-02-28
MX9710228A (en) 1998-03-31
JPH11508249A (en) 1999-07-21
JP3576171B2 (en) 2004-10-13
PL185354B1 (en) 2003-04-30
RO117918B1 (en) 2002-09-30
CA2225528A1 (en) 1997-01-09
CN1192740A (en) 1998-09-09
JP2004123756A (en) 2004-04-22
CZ415397A3 (en) 1998-08-12
DK1251125T3 (en) 2006-04-18
AU716377B2 (en) 2000-02-24
WO1997000876A1 (en) 1997-01-09
DK0835258T3 (en) 2003-02-03
ES2184882T3 (en) 2003-04-16
CA2225528C (en) 2007-06-05
EP0835258A1 (en) 1998-04-15
TW457234B (en) 2001-10-01
DE69635560T2 (en) 2006-08-17
KR19990028263A (en) 1999-04-15
NZ312715A (en) 2000-01-28
NO975988D0 (en) 1997-12-19
DE69623961D1 (en) 2002-10-31
BR9608639A (en) 1999-06-29
NO975988L (en) 1998-02-19
ATE312105T1 (en) 2005-12-15
CZ296156B6 (en) 2006-01-11
KR100440838B1 (en) 2004-12-17
ES2254600T3 (en) 2006-06-16

Similar Documents

Publication Publication Date Title
HK1050686A1 (en) New camptothecin analogues, preparation methods thereof, use thereof as drugs, and pharmaceutical compositions containing them
GB8531415D0 (en) Block polyesters
GR850059B (en)
ES8507419A1 (en) Phosporic acid diesters, their salts, compositions containing them and a process for producing said diesters and salts.
ZA898436B (en) Novel 3-piperidinyl-1,2-benzisoxazoles
WO1987006226A3 (en) Azacycloalkane derivatives, absorption promoters containing the derivatives as the effective ingredient and external preparations containing the absorption promoters
HUT68385A (en) Polypeptide and process for producing thereof
EP0974583A4 (en) Phenylpiperidine derivatives
IL90424A0 (en) Cephem derivatives,processes for the preparation thereof and pharmaceutical compositions containing the same
IL91194A0 (en) 3-piperazinylbenzazole derivatives,their preparation and pharmaceutical compositions containing them
ES2060029T3 (en) DERIVATIVES OF ACID 6-FLUOROSIQUIMICO.
HUT53528A (en) Process for production of having antiviral effectg, well suluable in water stabil cristallic salts of 2',3' dideozoxiinozin- monohidrat, 2',3'-didezoxi-2'3'-didohydrotimidin monohydrate and 2',3' didezoxi-2'-fluor-inosine-hemihydrate and medical compositions containing these salts
ES2130392T3 (en) PROCEDURE FOR THE PREPARATION OF CLAVULANIC ACID.
HUT68636A (en) Benzopyrane derivatives, process for producing them, and pharmaceutical compositions containing them

Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20110621