Acetic acid (1S,2S)-2-acetoxy-1,2-bis-((S)-2-acetyl-6,7-dimethoxy-1,2,3,4-tetrahydro-isoquinolin-1-yl)-ethyl ester 在
盐酸 作用下,
以85%的产率得到1-{(S)-1-[(1S,2S)-2-((S)-2-Acetyl-6,7-dimethoxy-1,2,3,4-tetrahydro-isoquinolin-1-yl)-1,2-dihydroxy-ethyl]-6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl}-ethanone