Effects of N-substitution on the activation mechanisms of 4-hydroxycyclophosphamide analogs
作者:Chul Hoon Kwon、Richard F. Borch
DOI:10.1021/jm00127a016
日期:1989.7
which can reclose to the cis- or trans-4-hydroxy isomers or undergo base-catalyzed beta-elimination to generate the corresponding phosphoramide mustard products 4. In contrast to the general acid catalysis observed for ringopening of 2a and 2d, the N-(chloroethyl)-substituted analogues 2b and 2c undergo specific base-catalyzedringopening. This mechanistic difference was also illustrated by the rapid