tert-butyl 3-((2R)-2-(2-(2-(tert-butoxycarbonylamino)ethylcarbamoyl)benzamido)-2-(2,9,9-trimethyl-3,5-dioxa-4-bora-tricyclo[6.1.1.02,6]dec-4-yl)ethyl)-2-methoxybenzoate 、
三氯化硼 生成
(R)-3-(2-(2-aminoethylcarbamoyl)benzamido)-2-hydroxy-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic acid