(R)-3,4-Bis-triethylsilanyloxy-butyric acid (R)-1-[(R)-methoxy-(methoxy-methyl-carbamoyl)-methyl]-2-methyl-propyl ester 在
草酰氯 、
二甲基亚砜 作用下,
生成 (E)-(R)-2-Methyl-4-triethylsilanyloxy-hex-2-enedioic acid 1-benzyl ester 6-{(R)-1-[(R)-methoxy-(methoxy-methyl-carbamoyl)-methyl]-2-methyl-propyl} ester