(S)-3-[2-(2,2-Dimethyl-4,6-dioxo-[1,3]dioxan-5-yl)-2-oxo-ethyl]-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester 在
sodium tetrahydroborate 、
溶剂黄146 作用下,
以
二氯甲烷 为溶剂,
反应 10.0h,
以95%的产率得到(R)-3-[2-(2,2-Dimethyl-4,6-dioxo-[1,3]dioxan-5-yl)-ethyl]-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester