2-((9H-fluoren-9-yl)methyl) 3-methyl 6-(2,3-bis(tert-butoxycarbonyl)guanidino)-3,4-dihydroisoquinoline-2,3(1H)-dicarboxylate 在
sodium hydroxide 作用下,
以
甲醇 为溶剂,
反应 4.0h,
以65%的产率得到6-[bis[(2-methylpropan-2-yl)oxycarbonylamino]methylideneamino]-2-(9H-fluoren-9-ylmethoxycarbonyl)-3,4-dihydro-1H-isoquinoline-3-carboxylic acid