Synthetic studies on indole alkaloids. III. Synthesis of 1-ethylindolo[2,3-a]quinolizidin-2-one
作者:Mario Rubiralta、Anna Diez、Cristina Vila
DOI:10.1016/s0040-4039(00)97469-0
日期:——
The synthesis of 1-ethylindolo[2,3-a]quinolizidin-2-one 3 is reported by potassium tert-butoxide cyclization of N-hydroxyethyl-2-[1-(phenylsulfonyl)-3-indolyl]-4-piperidone ethylene acetal 10 followed by acid treatment of the intermediate spiroindolenines 8.
1-ethylindolo的合成[2,3-一个] quinolizidin -2-酮3是由钾报道叔丁醇的环化Ñ羟乙基-2- [1-(苯基磺酰基)-3-吲哚基] -4-哌啶酮乙烯乙缩醛10,然后酸处理中间螺环亚胺8。