SU1579460A3 - Способ получени замещенных 7-амино-3-окси-1-карба(1-детиа)-3-цефем-4-карбоксилата в форме цис-энантиомера - Google Patents

Способ получени замещенных 7-амино-3-окси-1-карба(1-детиа)-3-цефем-4-карбоксилата в форме цис-энантиомера Download PDF

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SU1579460A3
SU1579460A3 SU874202676A SU4202676A SU1579460A3 SU 1579460 A3 SU1579460 A3 SU 1579460A3 SU 874202676 A SU874202676 A SU 874202676A SU 4202676 A SU4202676 A SU 4202676A SU 1579460 A3 SU1579460 A3 SU 1579460A3
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amino
carba
cephem
carboxylate
cis
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Алберт Эванс Дэвид
Брайан Съерген Эрик
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Президент Энд Феллоуз Оф Гарвард Калледж (Фирма)
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D401/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/04Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D405/00Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/06Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D205/00Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
    • C07D205/02Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
    • C07D205/06Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D205/08Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams
    • C07D205/085Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams with a nitrogen atom directly attached in position 3
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D263/00Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/02Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
    • C07D263/08Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D263/16Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member 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
    • C07D263/18Oxygen atoms
    • C07D263/20Oxygen atoms attached in position 2
    • C07D263/22Oxygen atoms attached in position 2 with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to other ring carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D413/00Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/04Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D413/00Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/14Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D463/00Heterocyclic compounds containing 1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D463/00Heterocyclic compounds containing 1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
    • C07D463/10Heterocyclic compounds containing 1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2
    • C07D463/14Heterocyclic compounds containing 1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbacephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2 with hetero atoms directly attached in position 7
    • C07D463/16Nitrogen atoms
    • C07D463/18Nitrogen atoms further acylated by radicals derived from carboxylic acids or by nitrogen or sulfur analogues thereof
    • C07D463/20Nitrogen atoms further acylated by radicals derived from carboxylic acids or by nitrogen or sulfur analogues thereof with the acylating radicals further substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cephalosporin Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Catalysts (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Изобретение касаетс  гетероциклических веществ, в частности получени  замещенных 7-амино-3-окси-1-карба(1-детиа)-3-цефем-4-карбоксилатов (в форме цис-энантиомеров) общей ф-лы R 1C(O)-NH→CH-C(O)-N-C←CH 2-CH 2-C(OH)=C-C(O)-OR 2, где R 1 - C 1 - C 4-алкокси или феноксиметил
R 2 - трет-бутил или N-нитробензилгруппа, в качестве полупродуктов дл  синтеза β-лактамовых антибиотиков. Цель - создание новых полупродуктов указанного назначени . Синтез ведут реакцией гексаметилдисилазанлити  с соединением общей ф-лы R 1-C(O)-NH→CH-C(O)-N[CH 2-C(O)-OR 2-CH←CH 2-CH 2-C(O)-S-C 6H 5, где R 1 и R 2 - см.выше.

Description

Изобретение относитс  к получению новых замещенных 7-амино-3-окси-1-кар- ба (1-детиа)-3-цефем-4-карбоксилата общей формулы
RiCONH.,
COOR
где R4 С(-С43лкокси или феноксиметил;
RZ -трет.бутил- или пара-нитробен- зилгруппа, в форме цис-энантомера, которые могут быть использованы в качестве промежуточных продуктов в синтезе И -лактамовых антибиотиков.
Р
Целью изобретени   вл етс  разработка способа получени  новых соединений , использование которых в ка- честпе промежуточных продуктов позвол ет значительно упростить синтез -лактамовых антибиотиков.
П р им ер. Трет. GVTHTT- /3-трет.- бутилоксикарбониламино-3-окси-1-кар- ба()-3-цефем-4-карбоксилат.
К раствору 4,4 г (9,47 ммоль) 1- -трет-бутилоксикарбонил-метил-3 |3- -трет.бутилоксикарбониламнно-43-(2- -фенил иокарбонилэтил) азетидин-2-она в 100 -ш сухого тетрагидрофурана добавл ли в aTMorr iepe аргогга при -78 С 29,3 мл (3,12 ммоль) гeкcn leтилдиcисл
4j
ы
31
лазанлити . Примерно через 15 мин смесь выпивали в 750 мл водного раст вора хлористого аммони  (50% от насы щений) и устанавливали рН смеси равным 3 с помощью 1 н. сол ной кислоты Подкисленную смесь трижды подвергали экстракции хлористым метиленом порци  ми по 50 мл. Объединенные экстракты промывали рассолом, высушивали над сульфатом натри  и концентрировали путем упаривани . Концентраты подвер
гали хроматографии на двуокиси крем .
ни  с использованием в качестве элю- ента смеси гексана и этилацетата в объемном соотношении 1:1. Элюат упаривали досуха, получа  в ревультате целевое соединение.
Вычислено, %: С 57,61; Н 7,39; N 7,90.
CnHe6N4Oe
Найдено, %: N 7,69.
Масс-спектр:
ИК-спектр и-лактамкарбонил: 1768 .
Аналогично получен п-нитробензиль- ный эфир 7 и-феноксиацетиламино-3- -гидрокси-1-карба(детиа)-3-цефем-4- -карбоновой кислоты.
Вычислено, %: С 59,10; Н 4,53; N 8,99.
С 57,42; Н 7,18; М4 354.
СгэНг,Ы,08
Найдено, %: С 59,10; N 8,96.
Н 4,47;
579460
Масс-спектр (десорбци  полем): М-1 467.
УФ-спектр:у макс 275 нм; б 17,034;
,c269 нм; 6 .
ИК-спектр:А -лактамкарбонил:
1766 смЧ

Claims (1)

  1. Формула изобретени 
    Способ получени  замещенных 7-ами- но-3-окси-1-карба(1-детиа)-3-цефем- -4-карбоксилата общей формулы
    R,CONHv
    СООВг
    где R(- С(-С -алкокси или феноксиметил;
    R - трет-бутил- и пара-нитробен- зилгруппа, в форме цис-эн-антиомера, отличающийс  тем, что со- единение общей формулы
    RiCONH«. CH2CH2COS-(Q
    CH2-COORa
    |где R { и Kg. имеют указанные знач«- 1 ни ,
    подвергают взаимодействию с гексаметилдисилазанпитиеМо
    Редактор А. Долинич
    Составитель И. Бочарова
    Техред Л.Олийнык Корректор М. Самборска 
    Заказ 1925
    Тираж 317
    ВНИИПИ Государственного комитета по изобретени м и открыти м при ГКНТ СССР 113035, Москва, Ж-35, Раушска  наб., д. 4/5
    Подписное
SU874202676A 1985-07-17 1987-06-05 Способ получени замещенных 7-амино-3-окси-1-карба(1-детиа)-3-цефем-4-карбоксилата в форме цис-энантиомера SU1579460A3 (ru)

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US06/755,982 US4665171A (en) 1985-07-17 1985-07-17 Process and intermediates for β-lactam antibiotics

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Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870169A (en) * 1985-07-17 1989-09-26 President And Fellows Of Harvard College Intermediates for beta-lactam antibiotics
US4673737A (en) * 1985-08-02 1987-06-16 Harvard University 7-acylamino-(or 7-amino)-3-trifluoromethylsulfonyloxy-1-carba(1-dethia)-3-cephem-4-carboxylic acids and esters thereof
US4734498A (en) * 1986-07-10 1988-03-29 Eli Lilly And Company 3β-succinimidoazetidinones as chiral intermediates
CA1323370C (en) * 1986-09-12 1993-10-19 Davis H. Crater Fluorochemical oxazolidinones
US4782144A (en) * 1987-09-14 1988-11-01 Eli Lilly And Company 1-carba(dethia)-3-hydroxy-3-cephem ester crystalline and crystalline solvate thereof
US5019571A (en) * 1988-01-25 1991-05-28 Eli Lilly And Company 1-carbacephalosporin antibiotics
US4820832A (en) * 1988-03-23 1989-04-11 Eli Lilly And Company Process for preparing 3-unsubstituted cephalosporins and 1-carba(dethia)cephalosporins
US4855418A (en) 1988-03-23 1989-08-08 Eli Lilly And Company Process for production of ceophalosporins
EP0345998A1 (en) * 1988-06-06 1989-12-13 Eli Lilly And Company Process and intermediates for beta-lactam antibiotics
EP0345999A1 (en) * 1988-06-06 1989-12-13 Eli Lilly And Company Process for intermediates to 1-carba(1-dethia)-3-cephem-4-carboxylic acids
US4885362A (en) * 1988-06-06 1989-12-05 Eli Lilly And Company Azetidinone intermediates for 1-carba(dethia)caphalosporins
DE68914888T2 (de) * 1988-06-22 1994-09-15 Lilly Co Eli Zwischenprodukt für 1-Carba(dethia)cephalosporin.
KR0169096B1 (ko) * 1988-10-11 1999-01-15 리로이 휘테커 카바세팔로스포린의 아제티디논 중간체 화합물 및 제조방법
US5453503A (en) * 1988-10-11 1995-09-26 Eli Lilly And Company Azetidinone intermediates to carbacephalosporins and process
US4931557A (en) * 1988-10-17 1990-06-05 Eli Lilly And Company Method of resolving cis 3-amino-4-(2-furyl)vinyl)-1-methoxycarbonylmethyl-azetidin-2-one and di-p-toluoyl-tartaric acid salts thereof
US4931556A (en) * 1988-10-17 1990-06-05 Eli Lilly And Company Method of resolving cis 3-amino-4-(2-(2-furyl)eth-1-yl)-methoxycarbonylmethyl-azetidin-2-one and malic acid salts thereof
JPH02252648A (ja) * 1989-03-27 1990-10-11 Naomi Iwagou イオン溶出燒結体
US5106475A (en) * 1989-09-20 1992-04-21 Eli Lilly And Company Process for preparing 4-substituted azetidinones
US4992545A (en) * 1989-09-20 1991-02-12 Eli Lilly And Company Process for preparing 4-substituted azetidinones
US5030725A (en) * 1990-02-06 1991-07-09 Eli Lilly And Company Method of resolving cis 3-amino-4-[2-(2-furyl)eth-1-yl]-1-methoxycarbonylmethyl-azetidin-2-one using (-)-DAG
US5051502A (en) * 1990-06-06 1991-09-24 University Of Notre Dame Du Lac Rhodium catalyzed cyclization process for bicyclic β-lactams
EP0479431B1 (en) * 1990-09-13 1999-12-08 Eli Lilly And Company Intermediates to 1-carbacephalosporins and process for preparation thereof
US5089610A (en) * 1991-04-25 1992-02-18 Eli Lilly And Company Ring-closure method for 1-carbacephalosporin six-membered ring
US5521307A (en) * 1992-02-18 1996-05-28 Eli Lilly And Company Methods and compounds for the preparation of carbacephems
ATE305781T1 (de) 1996-02-23 2005-10-15 Lilly Co Eli Non-peptidische vasopressin via antagonisten
JP2002535680A (ja) 1999-01-27 2002-10-22 ファルマシア・アンド・アップジョン・カンパニー 延長因子p活性モジュレーターのアッセイ方法
JP4916929B2 (ja) * 2007-03-23 2012-04-18 ヤマハ発動機株式会社 直交型ロボット
WO2009049238A1 (en) 2007-10-11 2009-04-16 The Regents Of The University Of California Compositions and methods of inhibiting n-acylethanolamine-hydrolyzing acid amidase
US9376424B2 (en) 2010-07-01 2016-06-28 Azevan Pharmaceuticals, Inc. Methods for treating post traumatic stress disorder
WO2014144836A2 (en) * 2013-03-15 2014-09-18 The Regents Of The University Of California Carbamate derivatives of lactam based n-acylethanolamine acid amidase (naaa) inhibitors
WO2014144547A2 (en) 2013-03-15 2014-09-18 The Regents Of The University Of California Amide derivatives of lactam based n-acylethanolamine acid amidase (naaa) inhibitors
JP7255967B2 (ja) 2014-03-28 2023-04-11 アゼヴァン ファーマスーティカルズ,インコーポレイテッド 神経変性疾患を治療するための組成物および方法
US20190321363A1 (en) * 2016-06-20 2019-10-24 Dr. Reddy's Laboratories Limited Process for the preparation of elagolix sodium and its polymorph
CN112500361B (zh) * 2020-12-27 2023-05-12 甘肃瀚聚药业有限公司 一种(s)-4-苯基-2-恶唑烷酮的制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4226866A (en) * 1972-11-06 1980-10-07 Merck & Co., Inc. Novel antibiotic analogues of cephalosporins
US4166816A (en) * 1975-05-05 1979-09-04 Smithkline Corporation Methods and intermediates for preparing cis-4-oxoazetidine intermediates
US4200572A (en) * 1975-09-03 1980-04-29 Smithkline Corporation Substituted azetidinones
ZA766941B (en) * 1975-11-21 1978-06-28 Merck & Co Inc 3-(substituted thio)cephalosporins,derivatives and nuclear analogues thereof
US4174316A (en) * 1978-08-14 1979-11-13 Merck & Co., Inc. 4-Iodomethylazetidin-2-one
US4472576A (en) * 1982-12-03 1984-09-18 Merck & Co., Inc. Processes for the production of antibiotic 1-oxadethiacephalosporins
US4502994A (en) 1982-12-09 1985-03-05 Hoffmann-La Roche Inc. Enantiomeric synthesis of 3-amino-4-carbamoyloxymethyl-2-azetidonone-1-sulfate
US4751299A (en) * 1983-11-18 1988-06-14 Takeda Chemical Industries, Ltd. Optically active β-lactams and method of their production
US4673737A (en) 1985-08-02 1987-06-16 Harvard University 7-acylamino-(or 7-amino)-3-trifluoromethylsulfonyloxy-1-carba(1-dethia)-3-cephem-4-carboxylic acids and esters thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Европейский патент № 0014476, кл. С 07 U 471/04, 1980. *

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DE3679002D1 (de) 1991-06-06
CA1310323C (en) 1992-11-17
EP0209352A2 (en) 1987-01-21
JPS6242985A (ja) 1987-02-24
EP0362902A3 (en) 1990-08-01
DK335686D0 (da) 1986-07-15
ES2000516A6 (es) 1988-03-01
AU6016686A (en) 1987-01-22
JPH0762015B2 (ja) 1995-07-05
IE861900L (en) 1987-01-17
AU4793490A (en) 1990-05-10
KR870001193A (ko) 1987-03-12
EP0362902B1 (en) 1996-01-17
JPH07300476A (ja) 1995-11-14
ATE63118T1 (de) 1991-05-15
KR900005257B1 (ko) 1990-07-21
CN1015178B (zh) 1991-12-25
AR243186A1 (es) 1993-07-30
GR861857B (en) 1986-11-18
PT82989B (pt) 1989-01-30
HU201931B (en) 1991-01-28
DK16096A (da) 1996-02-15
EP0209352A3 (en) 1988-04-20
HK1007140A1 (en) 1999-04-01
CN86104783A (zh) 1987-02-04
PT82989A (en) 1986-08-01
DK173456B1 (da) 2000-11-27
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DE3650474T2 (de) 1996-06-13
JP2634775B2 (ja) 1997-07-30
DK335686A (da) 1987-02-25
DE3650474D1 (de) 1996-02-29
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EP0209352B1 (en) 1991-05-02
HU906465D0 (en) 1991-04-29
US4665171A (en) 1987-05-12
ATE133172T1 (de) 1996-02-15
AU595216B2 (en) 1990-03-29
RU1794079C (ru) 1993-02-07
HUT41786A (en) 1987-05-28
NZ216871A (en) 1989-10-27
IL79420A (en) 1992-01-15

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