Benzoic acid (2S,3S,4R,6S)-6-((2R,3R)-3-benzyloxy-2-methoxy-5,5,6-trimethyl-4-oxo-hept-6-enyl)-2-bromomethyl-4-methoxy-tetrahydro-pyran-3-yl ester 在
铜 、
锌 作用下,
以
乙醇 为溶剂,
以82%的产率得到[(3R,4R,6S,8R,9R)-6-hydroxy-4,8-dimethoxy-11,11,12-trimethyl-10-oxo-9-phenylmethoxytrideca-1,12-dien-3-yl] benzoate