4',4'-diethylspiro[1,3-dioxolane-2,6'-7,8-dihydro-1H-pyrano[3,4-f]indolizine]-3',10'-dione 、
N-[(2S)-8-amino-6-fluoro-5-methyl-1-oxo-3,4-dihydro-2H-naphthalen-2-yl]acetamide 在
盐酸 作用下,
以
乙醇 为溶剂,
生成 N-[(23S)-10,10-diethyl-18-fluoro-19-methyl-5,9-dioxo-8-oxa-4,15-diazahexacyclo[14.7.1.02,14.04,13.06,11.020,24]tetracosa-1,6(11),12,14,16,18,20(24)-heptaen-23-yl]acetamide