Acetic acid (2S,3S,4R,5R,6S)-5-iodo-4-methoxy-6-((2S,3S,4S)-4-methoxy-2-methyl-3,4-dihydro-2H-pyran-3-yloxy)-2-methyl-tetrahydro-pyran-3-yl ester 在
三正丁基氢锡 作用下,
以81%的产率得到Acetic acid (2S,3S,4S,6S)-4-methoxy-6-((2S,3S,4S)-4-methoxy-2-methyl-3,4-dihydro-2H-pyran-3-yloxy)-2-methyl-tetrahydro-pyran-3-yl ester