acetic acid (3R,5R,8R,9S,10S,12S,13R,14S,17R)-3-acetoxy-17-((R)-3-iodo-1-methylpropyl)-10,13-dimethylhexadecahydrocyclopenta[a]phenanthren-12-yl ester 、
苄胺 在
potassium carbonate 、
乙腈 作用下,
反应 2.0h,
以41%的产率得到[(3R,5R,8R,9S,10S,12S,13R,14S,17R)-12-acetyloxy-17-[(2R)-4-(benzylamino)butan-2-yl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate