Enzymatic ring expansion of penicillins to cephalosporins: side chain specificity
作者:Jack E. Baldwin、Robert M. Adlington、Janice B. Coates、M. James C. Crabbe、John W. Keeping、Graham C. Knight、Takashi Nomoto、Christopher J. Schofield、Hong-Hoi Ting
DOI:10.1039/c39870000374
日期:——
Structural variants on the acylamino-side chains of penicillins as substrates for the ringexpansion enzyme from Cephalosporium acremonium CO728 show that a six carbon chain terminating in a carboxy group permits efficient conversion into cephems with the exception of δ-(L-α-aminoadipoly)[5-(5S)-amino-5-carboxypentanoyl].