[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:9][C@@H:10]([CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([F:30])[CH:25]=2)[CH2:11][N:12]2C(=O)C3C(=CC=CC=3)C2=O)=[O:8])=[CH:4][C:3]=1[C:31]1[N:35]([CH3:36])[N:34]=[CH:33][C:32]=1[Cl:37].NN>O1CCCC1.CO>[NH2:12][CH2:11][C@@H:10]([NH:9][C:7]([C:5]1[S:6][C:2]([Cl:1])=[C:3]([C:31]2[N:35]([CH3:36])[N:34]=[CH:33][C:32]=2[Cl:37])[CH:4]=1)=[O:8])[CH2:23][C:24]1[CH:29]=[CH:28][CH:27]=[C:26]([F:30])[CH:25]=1To a 250 mL round-bottomed flask was added 5-chloro-4-(4-chloro-1-methyl-1H-pyrazol-5-yl)-N-{(1S)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-1-[(3-fluorophenyl)methyl]ethyl}-2-thiophenecarboxamide (9 g, 16.15 mmol) and hydrazine (15.69 ml, 323 mmol) in tetrahydrofuran (THF) (75 ml) and methanol (75 mL). After 24 h at RT, the precipitate was filtered, the filtrate was concentrated, and the crude product was purified on a silica gel column [CHCl3/MeOH/NH4OH, 90:9:1] to give the title compound as a white solid.
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