Title:
METHOD FOR PREPARING NOVEL CEPHALOSPORINS
Document Type and Number:
Japanese Patent JPS51113890
Kind Code:
A
Abstract:
PURPOSE: Cephalosporins of formula I are new: [where R is amino acid residue; R1 is H, carboxy-protecting group of salt-forming cation; n is 1W3; X is O or S; m is equal to 4Wn; R2 and R3 are a pair of substituents such as H, halogen carboxyl and alkyl, etc. at the same carbon respectively; A is H or hydroxy; B is R5 (R5 is cyano, azide or an organic residue which is bonded to CH2 via O, N or S) or quat-ammonium].
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Inventors:
SAIKAWA ISAMU
TAKANO SHIYUNTAROU
YOSHIDA CHIYOUSAKU
TAKASHIMA OKUTA
MOMOI UMIHIDE
KURODA SEIETSU
KOMATSU MIWAKO
YASUDA TAKASHI
KODAMA HIROSHI
TAKANO SHIYUNTAROU
YOSHIDA CHIYOUSAKU
TAKASHIMA OKUTA
MOMOI UMIHIDE
KURODA SEIETSU
KOMATSU MIWAKO
YASUDA TAKASHI
KODAMA HIROSHI
Application Number:
JP3720775A
Publication Date:
October 07, 1976
Filing Date:
March 27, 1975
Export Citation:
Assignee:
TOYAMA CHEMICAL CO LTD
International Classes:
C07D501/20; A61K31/545; A61K31/546; A61P31/04; C07D501/04; C07D501/24; C07D501/38; A61K; B65D; C07D; (IPC1-7): A61K31/545; C07D501/04; C07D501/24
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