Abstract:
The present invention relates to novel polymorphs of Ceftiofur sodium as a crystalline product. The present invention also provides a process for the preparation of novel polymorphs of crystalline Ceftiofur sodium of formula (I).
Abstract:
The present invention relates to novel polymorph of Ceftiofur sodium as a crystalline product. The present invention also provides a process for the preparation of crystalline Ceftiofur sodium of formula (I).
Abstract:
Cephalosporin derivatives represented by formula (I) (wherein R represents -CH2-OCORa1 (wherein Ra1 represents an alkyl group),$(4,)$(wherein Rb1 represents an alkyl group),$(4,)$(wherein Rc1 represents an alkyl group),$(6,)$or phthalidyl group), are rapidly absorbed by blood when administered orally to exhibit an excellent antibacterial effect, thus being useful as agents to be applied orally for prophylaxis or treatment of bacteria-induced diseases.
Abstract:
The present invention relates to cephalosporin derivatives having β- lactamase inhibitory activity. The compounds are useful in preventing or treating bacterial resistance to an antibiotic, e.g. a β-lactam antibiotic. Disclosed herein are compounds that are inhibitors of class B metallo-β-lactamases, as well as class A, C, and D serine β-lactamases. In some preferred embodiments, the compounds are 3'- thiobenzoate derivatives of a cephalosporin. Pharmaceutical compositions, methods, uses, kits and commercial packages comprising the compounds are also disclosed.
Abstract:
The present invention relates to novel polymorphs of Ceftiofur sodium as a crystalline product. The present invention also provides a process for the preparation of novel polymorphs of crystalline Ceftiofur sodium of formula (I).
Abstract:
The present invention relates to novel polymorphs of Ceftiofur sodium as a crystalline product. The present invention also provides a process for the preparation of novel polymorphs of crystalline Ceftiofur sodium of formula (I).
Abstract:
The present invention relates to a process for the preparation of O-formyl cefamandole, an intermediate in the preparation of cefamandole nafate, by formylation of cefamandole.