Benzenesulfonyl chloride → [4-(3-Benzenesulfonylamino-benzene-sulfonyl-amino)-4,5,6,7-tetrahydro-indazol-1-yl]-acetic acid ethyl ester
Reaction equation
[CH2:1]([O:3][C:4](=[O:26])[CH2:5][N:6]1[C:14]2[CH2:13][CH2:12][CH2:11][CH:10]([NH:15][S:16]([C:19]3[CH:24]=[CH:23][CH:22]=[C:21]([NH2:25])[CH:20]=3)(=[O:18])=[O:17])[C:9]=2[CH:8]=[N:7]1)[CH3:2].[C:27]1([S:33](Cl)(=[O:35])=[O:34])[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1>>[CH2:1]([O:3][C:4](=[O:26])[CH2:5][N:6]1[C:14]2[CH2:13][CH2:12][CH2:11][CH:10]([NH:15][S:16]([C:19]3[CH:24]=[CH:23][CH:22]=[C:21]([NH:25][S:33]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)(=[O:35])=[O:34])[CH:20]=3)(=[O:18])=[O:17])[C:9]=2[CH:8]=[N:7]1)[CH3:2]Participants
3
Procedure
Stating with [4-(3-amino-benzenesulfonylamino)-4,5,6,7-tetrahydro-indazol-1-yl]-acetic acid ethyl ester and benzenesulfonyl chloride, and using the method analogous to the one described for example 14-1, [4-(3-benzenesulfonylamino-benzene-sulfonyl-amino)-4,5,6,7-tetrahydro-indazol-1-yl]-acetic acid ethyl ester (15 mg, 70%) was obtained as a white solid. MS cald. for C23H26N4O6S2 518, obsd. (ESI+) [(M+H)+]:519.