3,5-Bis-(2-{2-[2-(2-methoxy-ethoxy)-ethoxy]-ethoxy}-ethoxy)-benzoic acid (2R,4aR,6S,7R,8R,8aS)-6-allyloxy-2-phenyl-7-(2,2,2-trichloro-ethoxycarbonylamino)-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yl ester 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
以84%的产率得到3,5-Bis-(2-{2-[2-(2-methoxy-ethoxy)-ethoxy]-ethoxy}-ethoxy)-benzoic acid (2S,3R,4R,5S,6R)-2-allyloxy-5-hydroxy-6-hydroxymethyl-3-(2,2,2-trichloro-ethoxycarbonylamino)-tetrahydro-pyran-4-yl ester