1-ethyl-1-(2-hydroxy-2-ethoxycarbonylethyl)-1,2,3,4,6,7-hexahydro-12H-indolo<2,3-a>-quinolizin-5-ium perchlorate 在
sodium hydroxide 、 sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
以9.7%的产率得到3-((1S,12bS)-1-Ethyl-1,2,3,4,6,7,12,12b-octahydro-indolo[2,3-a]quinolizin-1-yl)-2-hydroxy-propionic acid ethyl ester