马来酸酐 、
Ethyl {(1'S)-3'-[(4''R)-4''-tert-butyldimethylsiloxycyclopenten-1''-yl]-4'-oxocyclopent-2'-enyl}acetate 以
二氯甲烷 为溶剂,
18.0 ℃
、1899.99 MPa
条件下,
反应 2.0h,
以44%的产率得到[(3aS,3bR,4S,8R,9aS,9bR)-8-(tert-Butyl-dimethyl-silanyloxy)-1,3,6-trioxo-1,3,3a,3b,4,5,6,7,8,9,9a,9b-dodecahydro-2-oxa-trinden-4-yl]-acetic acid ethyl ester