(2R)-1-[(4R,5S,6S)-2,2,5-trimethyl-6-[2-tri(propan-2-yl)silyloxyethyl]-1,3-dioxan-4-yl]pent-4-en-2-ol 在
三氟甲磺酸三甲基硅酯 、 chloromercury(II) acetate 、
N,N-二异丙基乙胺 、 ytterbium(III) triflate 作用下,
以
二氯甲烷 为溶剂,
-78.0~60.0 ℃
、6.89 MPa
条件下,
反应 50.92h,
生成 (4R)-5-[(4R,6R)-2,2-dimethyl-6-[[(4R,5S,6S)-2,2,5-trimethyl-6-[2-tri(propan-2-yl)silyloxyethyl]-1,3-dioxan-4-yl]methyl]-1,3-dioxan-4-yl]-4-hydroxy-1-[(4S,6R)-6-[(E,3S,4S)-4-[(4-methoxyphenyl)methoxy]-3,5-dimethylhex-1-enyl]-2,2-dimethyl-1,3-dioxan-4-yl]pentan-2-one