聚合甲醛 、
胆酸 、
异丙胺 、
tris(2-isocyanoethyl)amine 以
甲醇 为溶剂,
反应 12.0h,
以61%的产率得到(4R)-N-[2-[2-[bis[2-[[2-[propan-2-yl-[(4R)-4-[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-trihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoyl]amino]acetyl]amino]ethyl]amino]ethylamino]-2-oxoethyl]-N-propan-2-yl-4-[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-trihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanamide