Aminothiazole intermediate for a cephalosporin

• US 4,656,287 A
• Filed: 07/11/1985
• Issued: 04/07/1987
• Est. Priority Date: 05/25/1984
• Status: Expired due to Fees

• Current Assignee: Toyama Chemical Co., Ltd. (Fujifilm Holdings Corporation)
• Original Assignee: Toyama Chemical Co., Ltd. (Fujifilm Holdings Corporation)
• Inventors: Tanaka, Kiyoshi, Yoshida, Junichi, Imaizumi, Hiroyuki, Inaba, Takihiro, Takano, Shuntaro, Fukuda, Hirohiko, Murotani, Yoshiharu, Saikawa, Isamu, Takeno, Ryuko, Morita, Seishi
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/753,942
• Time in Patent Office: 635 Days
• Field of Search: 548/194
• US Class Current: 548/194
• CPC Class Codes: C07D 277/587 with aliphatic hydrocarbon radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms, said aliphatic radicals being substituted in the alpha-position to the ring by a hetero atom, e.g. with m >= 0, Z being a singly or a doubly bound hetero atom
• CPC Class Codes: Y02P 20/55 Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Abstract

This invention relates to a novel aminothiazole intermediate for production of a cephalosporin of antibiotic activity.

Claims

1. A compound represented by the formula [II]:

##STR91## wherein R¹ is a hydrogen atom and R² is a lower alkyl group.