Title:
2-AZETIDINONE DERIVATIVES AND PROCESS FOR THEIR PREPARATION
Document Type and Number:
WIPO Patent Application WO/1985/004876
Kind Code:
A1
Abstract:
2-Azetidinone derivatives having a group of formula (I), (wherein R1 and R2 may be the same or different and each represents hydrogen, alkyl, optionally substituted aryl or arylalkyl) in position 1 and an optionally acylated or protected amino group in position 3, salts thereof, and processes for their preparation comprising: (1) subjecting a 2-azetidinone derivatives having a group of formula (I), (wherein R1 and R2 are as defined above) in position 1 and an amino group in position 3 to the acylation or protective group-introducing reaction; or (2) reacting a 2-azetidinone derivative having a hydroxy group in position 1 and an optionally acylated or protected amino group in position 3 or its salt with a group of formula (II), (wherein W represents halogen, and R1 and R2 are as defined above) or its salt. The purpose compounds are utilized as antibacterial substances or the useful intermediates thereof.
Inventors:
KISHIMOTO SHOJI (JP)
SENDAI MICHIYUKI (JP)
OCHIAI MICHIHIKO (JP)
SENDAI MICHIYUKI (JP)
OCHIAI MICHIHIKO (JP)
Application Number:
PCT/JP1984/000215
Publication Date:
November 07, 1985
Filing Date:
April 24, 1984
Export Citation:
Assignee:
TAKEDA CHEMICAL INDUSTRIES LTD (JP)
International Classes:
C07D205/085; C07D209/48; C07D403/12; C07D417/12; (IPC1-7): C07D205/08; C07D417/12
Other References:
No relevant documents have been disclosed.
Download PDF: