作者:Bernhard J. Paul、Benjamin J. Littler、Frederic Jos、Paul F. Vogt、Seemon H. Pines
DOI:10.1021/op0502506
日期:2006.3.1
The rapid process development of a scaleable synthesis of the pseudotripeptide RC-1291 for preclinical and clinical evaluation is described. By employing a nontraditional N-to-C coupling strategy, the peptide chain of RC-1291 was assembled in high yield, with minimal racemization and in an economical manner by introducing the most expensive component last. A one-pot deprotection/crystallization procedure was developed for the isolation of RC-1291 free base, which afforded the target compound in excellent yield and with a purity of > 99.5% without chromatographic purification.