Imidazothiazole derivatives and process for producing the same

Details Imidazothiazole derivatives and process for producing the same Imidazothiazole derivatives and process for producing the same

2006-01-19

2010-02-16

Anderson, Rebecca L (Department: 1626)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C548S303100

Reexamination Certificate

active

07662841

ABSTRACT:
The present invention relates to compounds of formula (I) and a process for producing the same. In formula (I), X represents a halogen atom, and R1represents group —COR2wherein R2represents group OM or C1-12 alkyloxy wherein M represents a hydrogen atom, an alkali metal, an alkaline earth metal, or quaternary ammonium. The use of this compound as a synthetic intermediate can realize the production of carbapenem derivatives having potent antimicrobial activity in an efficient and safe manner at low cost.

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R. I. Fryer et al., “The Synthesis of 4-H-Imidazol[5,1-c][1,4]benzothiazine Derivatives”, Journal of Heterocyclic Chemistry, vol. 20, No. 6, pp. 1605-1608, Nov.-Dec. 1983.

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