GB1463270A - Preparation of a semi-synthetic penicillin - Google Patents

Preparation of a semi-synthetic penicillin

Info

Publication number
GB1463270A
GB1463270A GB4922275A GB4922275A GB1463270A GB 1463270 A GB1463270 A GB 1463270A GB 4922275 A GB4922275 A GB 4922275A GB 4922275 A GB4922275 A GB 4922275A GB 1463270 A GB1463270 A GB 1463270A
Authority
GB
United Kingdom
Prior art keywords
preparation
dimethylpenam
carboxylic acid
semi
aminophenylacetamido
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4922275A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ISF SpA
Original Assignee
ISF SpA
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
Application filed by ISF SpA filed Critical ISF SpA
Publication of GB1463270A publication Critical patent/GB1463270A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D499/00—Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
    • C07D499/21—Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring with a nitrogen atom directly attached in position 6 and 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
    • C07D499/44—Compounds with an amino radical acylated by carboxylic acids, attached in position 6
    • C07D499/48—Compounds with an amino radical acylated by carboxylic acids, attached in position 6 with a carbon chain, substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, attached to the carboxamido radical
    • C07D499/58—Compounds with an amino radical acylated by carboxylic acids, attached in position 6 with a carbon chain, substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, attached to the carboxamido radical substituted in alpha-position to the carboxamido radical
    • C07D499/64—Compounds with an amino radical acylated by carboxylic acids, attached in position 6 with a carbon chain, substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, attached to the carboxamido radical substituted in alpha-position to the carboxamido radical by nitrogen atoms
    • C07D499/68—Compounds with an amino radical acylated by carboxylic acids, attached in position 6 with a carbon chain, substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, attached to the carboxamido radical substituted in alpha-position to the carboxamido radical by nitrogen atoms with aromatic rings as additional substituents on the carbon chain

Abstract

1463270 Penicillin preparation ISF SpA 1 Dec 1975 [5 Dec 1974] 49222/75 Heading C2C The invention comprises a process for the preparation of 6-(α-aminophenylacetamido)-2,2- dimethylpenam-3-carboxylic acid, wherein 6-(α- hydrazinophenylacetamido) - 2,2 - dimethylpenam - 3 - carboxylic acid of the formula in which the carbon atom marked with an asterisk represents a centre of asymmetry, is, in protected form, catalytically hydrogenated to give 6-(α-aminophenylacetamido)-2,2-dimethylpenam-3-carboxylic acid, which is isolated as such or in the form of its epimers.
GB4922275A 1974-12-05 1975-12-01 Preparation of a semi-synthetic penicillin Expired GB1463270A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT3018874 1974-12-05

Publications (1)

Publication Number Publication Date
GB1463270A true GB1463270A (en) 1977-02-02

Family

ID=11229285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4922275A Expired GB1463270A (en) 1974-12-05 1975-12-01 Preparation of a semi-synthetic penicillin

Country Status (6)

Country Link
JP (1) JPS5182287A (en)
DE (1) DE2554567A1 (en)
ES (1) ES443190A1 (en)
FR (1) FR2293434A1 (en)
GB (1) GB1463270A (en)
NL (1) NL7513996A (en)

Also Published As

Publication number Publication date
DE2554567A1 (en) 1976-06-10
NL7513996A (en) 1976-06-09
FR2293434A1 (en) 1976-07-02
ES443190A1 (en) 1977-08-16
FR2293434B1 (en) 1978-05-12
JPS5182287A (en) 1976-07-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee