(+/-)-trans-2-(5,6-Dimethoxy-1H-indol-3-yl)-7-(2-ethoxy-2-oxoethyl)-6-ethyl-5,6,7,8-tetrahydrooxazolo<3,2-a>pyridinium Chloride 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
以74%的产率得到(+/-)-trans-1-<2-(5,6-Dimethoxy-1H-indol-3-yl)-2-oxoethyl>-3-ethyl-4-piperidineacetic Acid Ethyl Ester