胆固醇 、
2,3,4,6-tetra-O-benzoyl-D-glucopyranosyl bromide 在
silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
以45%的产率得到(2R,3R,4S,5R)-2-((benzoyloxy)methyl)-6-(((3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl tribenzoate