HCID 68443943、化合物 → HCID 68445902、化合物

反応式

[NH2:1][C:2]1[C:19]([N+:20]([O-])=O)=[CH:18][C:5]([C:6]([NH:8][C:9]2[CH:17]=[C:16]3[C:12]([CH:13]=[N:14][NH:15]3)=[CH:11][CH:10]=2)=[O:7])=[C:4]([Cl:23])[CH:3]=1>C(O)C.CC(O)=O.[Fe]>[NH2:1][C:2]1[C:19]([NH2:20])=[CH:18][C:5]([C:6]([NH:8][C:9]2[CH:17]=[C:16]3[C:12]([CH:13]=[N:14][NH:15]3)=[CH:11][CH:10]=2)=[O:7])=[C:4]([Cl:23])[CH:3]=1

参加物

実験手順

A solution of 4-amino-2-chloro-N-(1H-indazol-6-yl)-5-nitrobenzamide (2 mmol; see Example 154) in ethanol (5 mL) and AcOH (1 mL) was added with iron powder (10 mmol). The reaction mixture was then heated to reflux for 6 h. The contents were cooled to RT, filtered through Celite pad, and the pad was washed with ethanol. The filtrates were combined and concentrated in vacuo. The residue obtained was purified on a silica gel column chromatography using MeOH/DCM as eluent to afford 4,5-diamino-2-chloro-N-(1H-indazol-6-yl)benzamide.