2-(4-aminotetrahydro-2H-pyran-4-yl)-5-(3-(tert-butylamino)-2-methylquinoxalin-5-yl)-1H-pyrrole-3-carboxylic acid 在
benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
反应 3.75h,
以14%的产率得到2'-(3-(tert-butylamino)-2-methyl-5-quinoxalinyl)-2,3,5,6-tetrahydro-1'H-spiro[pyran-4,6'-pyrrolo[3,4-b]pyrrol]-4'(5'H)-one