C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/310.5
C07D 277/40 (2006.01) C07C 45/63 (2006.01) C07C 45/82 (2006.01) C07C 49/16 (2006.01) C07D 277/48 (2006.01) C07D 417/12 (2006.01)
Patent
CA 1191512
ABSTRACT OF THE DISCLOSURE This invention relates to a novel process for producing 2-(2-aminothiazol-4-yl)glyoxylic acid derivative represented by the following formula or a salt thereof which are useful in producing a cephalosporin antibiotic, Image wherein R1 is an amino group which may be protected by the conventional protecting group in the field of cephalosporin.
430079
Imaizumi Hiroyuki
Inaba Takihiro
Kajita Tetsuya
Morita Seishi
Sadaki Hiroshi
Marks & Clerk
Toyama Chemical Co. Ltd.
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