三光气 、
(Z)-7-{(1S,2S,3S,5R)-2-[(E)-(R)-3-(tert-Butyl-dimethyl-silanyloxy)-oct-1-enyl]-3,5-dihydroxy-cyclopentyl}-hept-5-enoic acid benzyl ester 在
吡啶 作用下,
以
二氯甲烷 为溶剂,
以94%的产率得到(Z)-7-{(1S,5R,6S,7S)-7-[(E)-(R)-3-(tert-Butyl-dimethyl-silanyloxy)-oct-1-enyl]-3-oxo-2,4-dioxa-bicyclo[3.2.1]oct-6-yl}-hept-5-enoic acid benzyl ester