2-[(2S)-2-amino-2-phenylethyl]-1H-isoindole-1,3(2H)-dione dihydrochloride 、
potassium 8-({2-methoxy-4-[(1-methylpiperidin-4-yl)carbamoyl]phenyl}amino)-5,5-dimethyl-4,5-dihydroisoxazolo[4,5-h]quinazoline-3-carboxylate 在
O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以32%的产率得到N-[(1S)-2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)-1-phenylethyl]-8-({2-methoxy-4-[(1-methylpiperidin-4-yl)carbamoyl]phenyl}amino)-5,5-dimethyl-4H,5H-[1,2]oxazolo[4,5-h]quinazoline-3-carboxamide