(5'S)-1-(2',3'-O-isopropylidene-6',7',8'-trideoxy-α-L-talo-oct-7'-enofranosyl)uracil 、
allyl 6-O-(tert-butyldiphenylsilyl)-3,4-O-isopropylidene-2-O-(4-methoxybenzyl)-α-D-galactopyranoside 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
二氯甲烷 为溶剂,
反应 12.0h,
生成 1-{9'-O-[6''-O-(tert-butyldiphenylsilyl)-3'',4''-O-isopropylidene-2''-O-(4-methoxybenzyl)-α-D-galactopyranosyl]-2',3'-O-isopropylidene-6',7',8'-trideoxy-β-D-allo-non-7'-enofranosyl}uracil