| 摘要 |
<p>The present invention relates to a new process for the preparation of cephalosporin derivative of formula (I) wherein R>1< represents p-methoxybenzyl, p-nitrobenzyl, o-chlorobenzyl or diphenylmethyl; R>2< REPRESENTS CH>3< OR CR?A>R<B>COOR<C> where R<A> and R<B> independently represent hydrogen or methyl and R<C> represents hydrogen or (C1-C6) alkyl; R3 represents hydrogen, acyl, phenacyl, formyl or trityl group.</p> |
| 申请人 |
ORCHID CHEMICALS AND PHARMACEUTICALS LIMITED;DESHPANDE, PANDURANG, BALWANT;PALANISAMY, SENTHILKUMAR, UDAYAMPALAYAM;RAMAR, PADMANABHAN |
发明人 |
DESHPANDE, PANDURANG, BALWANT;PALANISAMY, SENTHILKUMAR, UDAYAMPALAYAM;RAMAR, PADMANABHAN |
