(1R,2R)-N1,N1-二甲基环己烷-1,2-二胺双盐酸盐 、
ethyl ent-16β-isothiocyanobeyeran-19-oate 以
二氯甲烷 为溶剂,
以86%的产率得到ethyl (1R,4S,5R,9S,10R,13S,14R)-14-[[(1R,2R)-2-(dimethylamino)cyclohexyl]carbamothioylamino]-5,9,13-trimethyltetracyclo[11.2.1.01,10.04,9]hexadecane-5-carboxylate