methyl 4-(4-bromobenzylamino)-2-methylquinoline-3-carboxylate 、 3beta-ethynylcholic acid 生成 2-methyl-2-methyl-4-{4-[1-(3alpha,7alpha,12alpha-trihydroxy-10beta,13beta-dimethyl-17beta-(carboxy-1-methylpropyl)hexadecahydrocyclopenta[a]phenantren-3-yl)ethyn-2yl]benzylamino}quinoline-3-carboxylate