7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid → 3-{5-[7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-benzenesulfonamide

HRID 1784574Notes

Reaction equation

HRID 1784574 reaction equation
[CH:1]1([C:4]2[N:9]3[N:10]=[CH:11][C:12]([C:13]([OH:15])=O)=[C:8]3[N:7]=[C:6]([C:16]3[CH:21]=[CH:20][C:19]([C:22]([F:25])([F:24])[F:23])=[CH:18][CH:17]=3)[CH:5]=2)[CH2:3][CH2:2]1.O[NH:27][C:28](=[NH:39])[C:29]1[CH:34]=[CH:33][CH:32]=[C:31]([S:35](=[O:38])(=[O:37])[NH2:36])[CH:30]=1>>[CH:1]1([C:4]2[N:9]3[N:10]=[CH:11][C:12]([C:13]4[O:15][N:39]=[C:28]([C:29]5[CH:30]=[C:31]([S:35]([NH2:36])(=[O:37])=[O:38])[CH:32]=[CH:33][CH:34]=5)[N:27]=4)=[C:8]3[N:7]=[C:6]([C:16]3[CH:21]=[CH:20][C:19]([C:22]([F:25])([F:24])[F:23])=[CH:18][CH:17]=3)[CH:5]=2)[CH2:2][CH2:3]1

Participants

3

Reactant 2

HCID 666503207-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acidHCID 178513322HCID 178513322, compound

Product 1

HCID 160687653-{5-[7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-benzenesulfonamide

Procedure

The title compound was prepared from 7-cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.29) (174 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 column chromatography (dichloromethane/MeOH/NH4OH) and crystallization (ethyl acetate/MeOH/hexane) as an off-white solid (142 mg, 54%). MS (EI) 526.1 [(M)+]; mp 277° C.

Workup

  1. customObtained
  2. customafter purification
  3. customby column chromatography (dichloromethane/MeOH/NH4OH) and crystallization (ethyl acetate/MeOH/hexane) as an off-white solid (142 mg, 54%)

Sources & evidence

ORD record
ord-a166a762556846cd9ef1e750b9eb0717
Source dataset
uspto-grants-2009_03
Patent number
US07504404B2

Reaction notes

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