The synthesis of pseudomycin C′ via a novel acid promoted side-chain deacylation of pseudomycin A
作者:Michael J Rodriguez、Matthew Belvo、Robert Morris、Douglas J Zeckner、William L Current、Roberta K Sachs、Mark J Zweifel
DOI:10.1016/s0960-894x(00)00613-2
日期:2001.1
The gamma hydroxyl present in the aliphatic side chain of the natural products pseudomycin A and C' provided a unique handle for the pH dependent side-chain deacylation. Low pH reaction conditions were used to cleave the side chain with minimal degradation of the peptide core. The pseudomycin nucleus intermediate obtained from the deacylation of pseudomycin A was pivotal in the synthesis of novel side-chain analogues. A practical synthesis of a minor fermentation factor pseudomycin C' and related analogues is reported. (C) 2001 Elsevier Science Ltd. All rights reserved.