Ammonium Chloride → 4-Isopropyl-6-[4-(1-methyl-1H-indol-5-yl)-5-phenylamino-4H-[1,2,4]triazol-3-yl]-benzene-1,3-diol

HRID 1962844Notes

Reaction equation

[CH:1]([C:4]1[C:5]([O:34]C)=[CH:6][C:7]([O:32]C)=[C:8]([C:10]2[N:11]([C:22]3[CH:23]=[C:24]4[C:28](=[CH:29][CH:30]=3)[N:27]([CH3:31])[CH:26]=[CH:25]4)[C:12]([NH:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[N:13][N:14]=2)[CH:9]=1)([CH3:3])[CH3:2].[Cl-].[NH+]1C=CC=CC=1.[Cl-].[NH4+]>ClCCl>[CH:1]([C:4]1[CH:9]=[C:8]([C:10]2[N:11]([C:22]3[CH:23]=[C:24]4[C:28](=[CH:29][CH:30]=3)[N:27]([CH3:31])[CH:26]=[CH:25]4)[C:12]([NH:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[N:13][N:14]=2)[C:7]([OH:32])=[CH:6][C:5]=1[OH:34])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 210 °C

Procedure

A flask was charged with [5-(5-Isopropyl-2,4-dimethoxy-phenyl)-4-(1-methyl-1H-indol-5-yl)-4H-[1,2,4]triazol-3-yl]-phenyl-amine (27 mg; 0.06 mmol) and pyridinium chloride (2 g.). The reactants were placed under a nitrogen atmosphere, and the reaction was heated to 210° C. for 25 minutes. To the cooled reaction mixture was added dichloromethane and saturated ammonium chloride solution. The organic fraction was isolated, and the product was purified by column chromatography to give 4-Isopropyl-6-[4-(1-methyl-1H-indol-5-yl)-5-phenylamino-4H-[1,2,4]triazol-3-yl]-benzene-1,3-diol (18 mg; 0.04 mmol.)

Workup

customTo the cooled reaction mixture
customThe organic fraction was isolated
customthe product was purified by column chromatography

Sources & evidence

ORD record: ord-eb3a53b0a9024872a7604206187ff688
Source dataset: uspto-grants-2013_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08415377B2

Reaction notes

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