Reaction equation
[CH2:1]([C:5]1[N:6]([CH2:25][C:26]2[CH:31]=[CH:30][C:29]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=3[S:38](=[O:41])(=[O:40])[NH2:39])=[CH:28][C:27]=2[F:42])[C:7](=[O:24])[N:8]([C:10]2[CH:15]=[C:14]([C:16](=[O:22])[NH:17][CH2:18][CH2:19][CH2:20][CH3:21])[CH:13]=[CH:12][C:11]=2[Cl:23])[N:9]=1)[CH2:2][CH2:3][CH3:4].[Cl:43][C:44]1[CH:52]=[CH:51][CH:50]=[CH:49][C:45]=1[C:46](O)=[O:47].C1N=CN(C(N2C=NC=C2)=O)C=1.C1CCN2C(=NCCC2)CC1>CCOCC>[CH2:1]([C:5]1[N:6]([CH2:25][C:26]2[CH:31]=[CH:30][C:29]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=3[S:38](=[O:40])(=[O:41])[NH:39][C:46](=[O:47])[C:45]3[CH:49]=[CH:50][CH:51]=[CH:52][C:44]=3[Cl:43])=[CH:28][C:27]=2[F:42])[C:7](=[O:24])[N:8]([C:10]2[CH:15]=[C:14]([C:16](=[O:22])[NH:17][CH2:18][CH2:19][CH2:20][CH3:21])[CH:13]=[CH:12][C:11]=2[Cl:23])[N:9]=1)[CH2:2][CH2:3][CH3:4]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
By the procedure of Example 51, 5-n-butyl-2-[5-(N-n-butylcarbamoyl)-2-chlorophenyl]-4-[(3-fluoro-2'-sulfamoylbiphenyl-4-yl)methyl]-2,4-dihydro-3H-1,2,4-triazol-3-one (from Step G) was reacted with 2-chlorobenzoic acid (2 equivalents), CDI (2 equiv), and DBU (2 equiv). Flash chromatography of the crude product on silica gel (gradient elution with 0.5-5% MeOH in CH2Cl2) followed by trituration with ether afforded a 42% yield of the title compound as a white solid, mp 218°-220° C.; homogeneous by TLC (95:5 CH2Cl2 --MeOH); mass spectrum (FAB) m/e 753 (M+1)+.
Sources & evidence
- ORD record
- ord-9819b0da9e9549ddbe6cb0af258ed363
- Source dataset
- uspto-grants-1995_05
- Patent number
- US05411980
Linked notes
Loading…