4-((1R,3S)-2-Benzyl-3-cyano-2,3,4,9-tetrahydro-1H-β-carbolin-1-yl)-2,2-bis-phenylsulfanyl-butyric acid methyl ester 在
sodium tetrahydroborate 作用下,
生成 4-((R)-2-Benzyl-2,3,4,9-tetrahydro-1H-β-carbolin-1-yl)-2,2-bis-phenylsulfanyl-butyric acid methyl ester