Synthesis of Mesoionic Triazolopyridine. III. Applications of<i>N</i>-Acyl Mesoionic Triazolopyridines as Acylating Reagents
作者:Akio Saito、Bunji Shimizu
DOI:10.1246/bcsj.56.2974
日期:1983.10
Utility of N-acyl mesoionic triazolopyridines as acylating reagents was investigated concerning with peptide synthesis. Several dipeptides and N-alkoxycarbonyl amino acids were prepared by use of these reagents.
The synthesis of milbemycin derivatives having alkyloxy groups at the C-13 position was studied and a series of these analogs of milbemycin A4 and A3 was prepared by the reaction of 13-iodomilbemycin with a variety of alcohols. 13 beta-Phenethyloxy derivatives were found to possess excellent anthelminticactivity. Especially, the activities of derivatives with N-substituted 4-aminophenethyloxy groups