(S)-1-{2-[(2R,3R,5S,6S)-2-Hydroxy-3,5-dimethyl-6-((S)-1-phenyl-ethyl)-tetrahydro-pyran-2-yl]-2-oxo-acetyl}-piperidine-2-carboxylic acid tert-butyl ester 在
lead(IV) acetate 、
正丁基锂 作用下,
以
甲醇 为溶剂,
生成 (S)-1-(2-{2-[(1R,3S,4R,5S,7S)-4,9-Bis-(tert-butyl-dimethyl-silanyloxy)-3,5-dimethoxy-1,7-dimethyl-nonyl]-[1,3]dithian-2-yl}-2-oxo-acetyl)-piperidine-2-carboxylic acid tert-butyl ester