Author/Authors :
Patricia Yovaldi، نويسنده , , Patricia V. and de los Angeles Laborde، نويسنده , , Mar??a and Mascaretti، نويسنده , , Oreste A. Mascaretti، نويسنده ,
Abstract :
The 2β-(O-dibenzyl-phosphate)-oxymethyl-2α-methyl penam 3α-carboxylic acid benzyl ester and 3β-(O-dibenzyl-phosphate)-3α-methyl cepham 4α-carboxylic acid benzyl ester were synthesized. The conversion of the acyclic azetidione disulfides 1a–c prepared by Kamiya’s procedure to their bicyclic penam 2a–c and cefam 3a–c derivatives are described.
