(2Z,4E,6Z,8R,9S,11E,13E)-6-bromo-8-(tert-butyl-dimethyl-silanyloxy)-15-oxo-9-[(6-deoxy-2,3,4-trimethyl-O-methyl-α-L-mannopyranosyl)oxy]-hexadeca-2,4,6,11,13-pentaenoic acid methyl ester                                                                                                                                                              在
                                                                                                                                                                                 
甲基二氯化铝                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
正己烷   、                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 1.5h,
                                                                                                                以92%的产率得到(1R,2S,3aS,4S,5R,7aS)-3-[7-bromo-1-(tert-butyl-dimethyl-silanyloxy)-4-(3-oxo-but-1-enyl)-2-[(6-deoxy-2,3,4-trimethyl-O-methyl-α-L-mannopyranosyl)oxy]-2,3,3a,4,5,7a-hexahydro-1H-inden-5-yl]-acrylic acid methyl ester