83242-30-2Relevant articles and documents
PENICILLIN-CEPHALOSPORIN CONVERSION IV. DIRECT SYNTHESIS OF 3'-THIOSUBSTITUTED CEPHALOSPORINS FROM THIAZOLE-AZETIDINONES
Torii, Sigeru,Tanaka, Hideo,Sasaoka, Michio,Saitoh, Norio,Siroi, Takashi,Nokami, Junzo
, p. 2495 - 2498 (2007/10/02)
Direct transformation of thiazoline-azetidinones 2, derived from penicillin G and V, into 3'-thio-substituted cephalosporins 4 has been performed by ring opening of the thiazoline moiety with sulfenyl chlorides followed by ring closure with NH3 in dimethy