(4
S)-4
r-((
R)-2-benzyl-9-methyl-2,3,4,9-tetrahydro-1
H-β-carbolin-1-ylmethyl)-6
t-β-
D-glucopyranosyloxy-5
c-vinyl-5,6-dihydro-4
H-pyran-3-carboxylic acid methyl ester 生成
(4S)-4r-((1R)-2-benzyl-9-methyl-2,3,4,9-tetrahydro-1H-β-carbolin-1-ylmethyl)-5ξ-formyl-6ξ-methyl-5,6-dihydro-4H-pyran-3-carboxylic acid methyl ester