Acetic acid (2S,3R,4R,5S,6S)-4,5-bis-benzyloxy-2-methyl-6-(1-methyl-allyloxy)-tetrahydro-pyran-3-yl ester 在
正丁基锂 、 (Ph
3P)RhCl 作用下,
以96%的产率得到Acetic acid (2S,3R,4R,5S,6R)-4,5-bis-benzyloxy-2-methyl-6-((E)-1-methyl-propenyloxy)-tetrahydro-pyran-3-yl ester