3-[(2R)-2-[bis(trimethylsilyl)amino]-2-[(3aS,4S,6S,7aR)-hexahydro-3a,5,5-trimethyl-4,6-methano-1,3,2-benzodioxaborol-2-yl]ethyl]-2-methoxy-benzoic acid 1,1-dimethylethyl ester 、
3,3-二氟丁酸 在
吡啶 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基乙酰胺 为溶剂,
反应 19.5h,
生成 3-[2-(3,3-difluorobutyrylamino)-2-(2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.02,6]dec-4-yl)ethyl]-2-methoxybenzoic acid tert-butyl ester