JPS5640688A - Preparation of penicillanic acid derivative - Google Patents

Preparation of penicillanic acid derivative

Info

Publication number
JPS5640688A
JPS5640688A JP11610979A JP11610979A JPS5640688A JP S5640688 A JPS5640688 A JP S5640688A JP 11610979 A JP11610979 A JP 11610979A JP 11610979 A JP11610979 A JP 11610979A JP S5640688 A JPS5640688 A JP S5640688A
Authority
JP
Japan
Prior art keywords
protecting group
acid derivative
penicillanic acid
preparation
protected
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.)
Pending
Application number
JP11610979A
Other languages
Japanese (ja)
Inventor
Nobuhiro Oi
Bunya Aoki
Teizo Shinozaki
Kanji Moro
Isao Matsunaga
Takao Nofuji
Toshiyuki Nehashi
Yusuke Harada
Hisao Endo
Takao Kimura
Hiroshi Okazaki
Haruki Ogawa
Minoru Shindo
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.)
Chugai Pharmaceutical Co Ltd
Original Assignee
Chugai Pharmaceutical Co Ltd
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 Chugai Pharmaceutical Co Ltd filed Critical Chugai Pharmaceutical Co Ltd
Priority to JP11610979A priority Critical patent/JPS5640688A/en
Publication of JPS5640688A publication Critical patent/JPS5640688A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

PURPOSE: To prepare a penicillanic acid derivative or its salt useful as an antibacterial agent, by eliminating the protecting group from a specific protected penicillanic acid derivative.
CONSTITUTION: A compound of formula II (R1 is H or lower alkyl; R2 is H or OH; R3 are 2W3 OH groups, at least two of which are adjacent) is obtained by eliminating the protecting group of a compound of formula I (R21 is H or OH which may be protected; R31 are R3 or protected R3; Y is H or carboxy-protecting group; at least one of R21, R31 and Y is protecting group). The protecting group of R21 and R31 is e.g. lower alkanoyl group, which can be eliminated by treating with a base in a solvent in the presence of an alcohol, etc. The protecting group of Y is e.g. trimetylsilyl group, which can be eliminated by treating with water or an alcohol.
COPYRIGHT: (C)1981,JPO&Japio
JP11610979A 1979-09-12 1979-09-12 Preparation of penicillanic acid derivative Pending JPS5640688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11610979A JPS5640688A (en) 1979-09-12 1979-09-12 Preparation of penicillanic acid derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11610979A JPS5640688A (en) 1979-09-12 1979-09-12 Preparation of penicillanic acid derivative

Publications (1)

Publication Number Publication Date
JPS5640688A true JPS5640688A (en) 1981-04-16

Family

ID=14678907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11610979A Pending JPS5640688A (en) 1979-09-12 1979-09-12 Preparation of penicillanic acid derivative

Country Status (1)

Country Link
JP (1) JPS5640688A (en)

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