8-Trifluoromethyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridine-3-carboxylic acid → 3-{5-[8-Trifluoromethyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridin-3-yl]-[1,2,4]oxadiazol-3-yl}-benzenesulfonamide

HRID 418188Notes

Reaction equation

HRID 418188 reaction equation
[F:1][C:2]([F:26])([F:25])[C:3]1[C:4]2[N:5]([C:19]([C:22](O)=[O:23])=[CH:20][N:21]=2)[CH:6]=[C:7]([C:9]2[CH:14]=[CH:13][C:12]([C:15]([F:18])([F:17])[F:16])=[CH:11][CH:10]=2)[CH:8]=1.O[NH:28][C:29](=[NH:40])[C:30]1[CH:35]=[CH:34][CH:33]=[C:32]([S:36](=[O:39])(=[O:38])[NH2:37])[CH:31]=1>>[F:26][C:2]([F:1])([F:25])[C:3]1[C:4]2[N:5]([C:19]([C:22]3[O:23][N:40]=[C:29]([C:30]4[CH:31]=[C:32]([S:36]([NH2:37])(=[O:38])=[O:39])[CH:33]=[CH:34][CH:35]=4)[N:28]=3)=[CH:20][N:21]=2)[CH:6]=[C:7]([C:9]2[CH:14]=[CH:13][C:12]([C:15]([F:17])([F:18])[F:16])=[CH:11][CH:10]=2)[CH:8]=1

Participants

3

Reactant 2

HCID 866116268-Trifluoromethyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridine-3-carboxylic acidHCID 178513322HCID 178513322, compound

Product 1

HCID 160683623-{5-[8-Trifluoromethyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridin-3-yl]-[1,2,4]oxadiazol-3-yl}-benzenesulfonamide

Procedure

The title compound was prepared from 8-trifluoromethyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridine-3-carboxylic acid (example C.32) (187 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 (dichloromethane) as an off-white solid (117 mg, 42%). MS (ISN) 552.0 [(M−H)−]; mp 297° C.

Workup

  1. customObtained
  2. customafter purification
  3. customby column chromatography (dichloromethane/MeOH/NH4OH) and crystallization (dichloromethane) as an off-white solid (117 mg, 42%)

Sources & evidence

ORD record
ord-fa8dd37d18c4404e890f036f80d8a100
Source dataset
uspto-grants-2012_01
Patent number
US08093263B2

Reaction notes

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