Tetrahydrofuran → 5-tert-Butyl 1-ethyl 3-amino-4,6-dihydropyrrolo(3,4-c)pyrazole-1,5-dicarboxylate

Reaction equation

[C:1]([O:2][CH2:3][CH3:4])(=[O:5])[Cl:6].[CH:23]([N:24]([CH:25]([CH3:26])[CH3:27])[CH2:28][CH3:29])([CH3:30])[CH3:31].[NH2:7][c:8]1[c:9]2[c:10]([nH:11][n:12]1)[CH2:13][N:14]([C:16](=[O:17])[O:18][C:19]([CH3:20])([CH3:21])[CH3:22])[CH2:15]2.[O:32]1[CH2:33][CH2:34][CH2:35][CH2:36]1>>[C:1]([O:2][CH2:3][CH3:4])(=[O:5])[n:11]1[c:10]2[c:9]([c:8]([NH2:7])[n:12]1)[CH2:15][N:14]([C:16](=[O:17])[O:18][C:19]([CH3:20])([CH3:21])[CH3:22])[CH2:13]2