(3S,8aS)-8-methoxy-3-phenyl-1,3,6,8a-tetrahydro-[1,3]oxazolo[3,4-a]pyrazin-5-one 、
1-((benzyloxy)methyl)-6-chloro-2-(2-methylbut-3-en-2-yl)-1H-indole-3-carbaldehyde 在
sodium methylate 作用下,
以
甲醇 为溶剂,
生成 、 (1S,13S,15R,18S)-7-chloro-22-methoxy-12,12-dimethyl-18-phenyl-10-(phenylmethoxymethyl)-17-oxa-10,19,21-triazahexacyclo[13.5.2.01,13.03,11.04,9.015,19]docosa-3(11),4(9),5,7,21-pentaen-20-one