diethyl 2-[(6-chloro-1H-indol-3-yl)methyl]-2-(4-hydroxybut-2-ynyl)propanedioate 在
[(R)-m-xylyl-BINAP](AuBF
4)2 作用下,
以
二氯甲烷 为溶剂,
生成 diethyl (1S,9S)-5-chloro-10-oxa-8-azatetracyclo[7.7.0.01,13.02,7]hexadeca-2(7),3,5,12-tetraene-15,15-dicarboxylate 、
diethyl (1R,9R)-5-chloro-10-oxa-8-azatetracyclo[7.7.0.01,13.02,7]hexadeca-2(7),3,5,12-tetraene-15,15-dicarboxylate