在
potassium methanolate 作用下,
以
甲醇 为溶剂,
反应 4.0h,
以76%的产率得到(2R,4aR,6S,7R,8R,8aS)-6-[[(3aS,4R,6R,7R,7aS)-2,2,4-trimethyl-6-[(4S)-non-1-en-4-yl]oxy-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]oxy]-2-(4-methoxyphenyl)-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxine-7,8-diol