(S)-methyl 2-(7-(4-(allyloxy)-4-methylpiperidin-1-yl)-5-methyl-2-(2'-((S)pent-4-en-2-yloxy)-5'-(trifluoromethyl)-[1,1'-biphenyl]-3-yl)pyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetate 在
copper(l) iodide 、
Hoveyda-Grubbs catalyst second generation 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 3.0h,
以70%的产率得到methyl (2S)-2-(tert-butoxy)-2-[(22S)-4,22,28-trimethyl-17-(trifluoromethyl)-21,27-dioxa-1,5,7,8-tetraazahexacyclo[26.2.2.1
(6,9).1
(10,14).0
(2,7).0
(15,20)]tetratriaconta-2,4,6(34),8,10(33),11,13,15(20),16,18,24-undecaen-3-yl]acetate