1-{4-[2-Methyl-9-(toluene-4-sulfonyl)-2,3,4,9-tetrahydro-1H-β-carbolin-1-ylmethyl]-pyridin-3-yl}-ethanone 在
sodium tetrahydroborate 作用下,
生成
(1S,1''S)-2,3,4,9-tetrahydro-1-<<3'-(1''-hydroxyethyl)4'-pyridinyl>methyl>-2-methyl-9-(p-toluenesulfonyl)-1H-pyrido-<3,4-b>indole 、 (R)-1-{4-[(S)-2-Methyl-9-(toluene-4-sulfonyl)-2,3,4,9-tetrahydro-1H-β-carbolin-1-ylmethyl]-pyridin-3-yl}-ethanol