(R)-N’-(1-(tert-butyl)-but-3-en-1-yl)-N’-(3,5-dimethylbenzoyl)hydrazinecarboxylic acid benzyl ester 、 (S,S)-2-allyl-2-chloro-3,4-dimethyl-5-phenyl-[1,3,2]oxazasilolidine 在
(R)-N'-(1-tert-butylbut-3-enyl)hydrazinecarboxylic acid benzyl ester 作用下,
以to give (R)—N′-(1-tert-butyl-but-3-enyl)-hydrazinecarboxylic acid benzyl ester (compound D)的产率得到(R)-N'-(1-tert-butylbut-3-enyl)hydrazinecarboxylic acid benzyl ester