{2-Allyl-6-[methyl(methylsulfonyl)amino]pyridine-4-yl}methyl 3-allyl-n-(tert-butoxycarbonyl)-alpha-methylphenylalaninate 在
Catalyst I silica gel 、 EtOAc hexanes 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 0.5h,
以gave tert-butyl [(3EZ)-14-methyl-8-[methyl(methylsulfonyl)amino]-13-oxo-12-oxa-7-azatricyclo[14.3.1.16,10]henicosa-1(20),3,6(21),7,9,16,18-heptaen-14-yl]carbamate的产率得到tert-butyl [(3EZ)-14-methyl-8-[methyl(methylsulfonyl)amino]-13-oxo-12-oxa-7-azatricyclo[14.3.1.1 6,10]henicosa-1(20),3,6(21),7,9,16,18-heptaen-14-yl]carbamate