Studies toward practical synthesis of (20S)-camptothecin family through catalytic enantioselective cyanosilylation of ketones: improved catalyst efficiency by ligand-tuning
作者:Kazuo Yabu、Shuji Masumoto、Motomu Kanai、Dennis P. Curran、Masakatsu Shibasaki
DOI:10.1016/s0040-4039(02)00451-3
日期:2002.4
Enantioselective catalyst efficiency for the synthesis of the camptothecin family was improved through ligand-tuning. Key intermediates of two convergent syntheses of camptothecin (Curran's intermediate and Corey's intermediate) were obtained in up to 10 g scale through the catalytic enantioselective cyanosilylation of ketones.
通过调节配体提高了喜树碱家族合成的对映选择性催化剂的效率。通过酮的催化对映选择性氰基硅烷化,喜树碱的两种聚合合成的关键中间体(Curran's中间体和Corey's中间体)以高达10 g的规模获得。