5-(3-Methyl-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid → 3-{5-[5-(3-Methyl-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-benzenesulfonamide
Reaction equation
[CH3:1][C:2]1[CH:3]=[C:4]([C:12]2[CH:17]=[C:16]([C:18]([F:21])([F:20])[F:19])[N:15]3[N:22]=[CH:23][C:24]([C:25](O)=O)=[C:14]3[N:13]=2)[CH:5]=[CH:6][C:7]=1[C:8]([F:11])([F:10])[F:9].[OH:28][NH:29][C:30](=[NH:41])[C:31]1[CH:36]=[CH:35][CH:34]=[C:33]([S:37](=[O:40])(=[O:39])[NH2:38])[CH:32]=1>>[CH3:1][C:2]1[CH:3]=[C:4]([C:12]2[CH:17]=[C:16]([C:18]([F:21])([F:19])[F:20])[N:15]3[N:22]=[CH:23][C:24]([C:25]4[O:28][N:29]=[C:30]([C:31]5[CH:32]=[C:33]([S:37]([NH2:38])(=[O:39])=[O:40])[CH:34]=[CH:35][CH:36]=5)[N:41]=4)=[C:14]3[N:13]=2)[CH:5]=[CH:6][C:7]=1[C:8]([F:9])([F:10])[F:11]Participants
3
Reactant 2
Product 1
Procedure
The title compound was prepared from 5-(3-methyl-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.8) (195 mg, 0.5 mmol) and N-hydroxy-3-sulfamoyl-benzamidine [CAS-No. 9000-88-7] (161 mg, 0.75 mmol) according to general procedure II. Obtained after purification by flash chromatography (ethyl acetate/heptane) and crystallization (dichloromethane) as a light yellow solid (190 mg, 67%). MS (EI) 568.1 [(M)+]; mp 270° C.
Workup
- customObtained
- customafter purification
- customby flash chromatography (ethyl acetate/heptane) and crystallization (dichloromethane) as a light yellow solid (190 mg, 67%)
Sources & evidence
- ORD record
- ord-b6e5290b87cf4140a66ca72c626b2334
- Source dataset
- uspto-grants-2012_01
- Patent number
- US08093263B2
Reaction notes
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