3-[2-{2-[2-(2-tert-Butoxycarbonylamino-ethyl)-2,3-dihydro-1H-isoindol-5-yl]-acetylamino}-2-(2,9,9-trimethyl-3,5-dioxa-4-bora-tricyclo[6.1.1.02,6]dec-4-yl)-ethyl]-2-methoxy-benzoic acid 、
盐酸 在
crude product 作用下,
生成
(R)-3-{2-[2-(2-amino-ethyl)-2,3-dihydro-1H-isoindol-5-yl]-acetylamino}-2-hydroxy-3,4-dihydro-2H-benzo[e][1,2]oxaborinine-8-carboxylic acid