(3S,10R,13E,16S)-16-[(2R,3R,4S)-4-chloro-3-hydroxy-4-phenylbutan-2-yl]-10-[(3-chloro-4-methoxyphenyl)methyl]-6,6-diethyl-3-(2-methylpropyl)-1,4-dioxa-8,11-diazacyclohexadec-13-ene-2,5,9,12-tetrone 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
生成 (3S,10R,13E,16S)-10-[(3-chloro-4-methoxyphenyl)methyl]-6,6-diethyl-3-(2-methylpropyl)-16-[(1S)-1-[(2R,3R)-3-phenyloxiran-2-yl]ethyl]-1,4-dioxa-8,11-diazacyclohexadec-13-ene-2,5,9,12-tetrone