草酰氯 、 、 、
[(2R,3R,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-(2,3-dihydrobenzofuran-5-ylmethyl)phenyl]-6-methoxy-tetrahydropyran-2-yl]methanol 、
三乙胺 在
盐酸 、
氯化钠 、
magnesium sulfate 、
(2S,3S,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-(2,3-dihydrobenzofuran-5-ylmethyl)phenyl]-6-methoxy-tetrahydropyran-2-carbaldehyde 作用下,
以
二氯甲烷 为溶剂,
反应 2.92h,
以to obtain the title compound (2S,3S,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-(2,3-dihydrobenzofuran-5-ylmeth-yl)phenyl]-6-methoxy-tetrahydropyran-2-carbaldehyde 51 (4.19 g, pale yellow grease), which的产率得到(2S,3S,4S,5R,6S)-3,4,5-tribenzyloxy-6-[4-chloro-3-(2,3-dihydrobenzofuran-5-ylmethyl)phenyl]-6-methoxy-tetrahydropyran-2-carbaldehyde