Trifluoroacetic acid → 4-Cyano-1H-imidazole-2-carboxylic acid [4-(1-azido-1-methyl-ethyl)-2-cyclohex-1-enyl-phenyl]-amide

HRID 1711233Notes

Reaction equation

[C:1]1([C:7]2[CH:12]=[C:11]([C:13](O)([CH3:15])[CH3:14])[CH:10]=[CH:9][C:8]=2[NH:17][C:18]([C:20]2[NH:21][CH:22]=[C:23]([C:25]#[N:26])[N:24]=2)=[O:19])[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]=1.[N-:27]=[N+:28]=[N-:29].[Na+].C(O)(C(F)(F)F)=O.CCOC(C)=O>C(Cl)(Cl)Cl>[N:27]([C:13]([C:11]1[CH:10]=[CH:9][C:8]([NH:17][C:18]([C:20]2[NH:21][CH:22]=[C:23]([C:25]#[N:26])[N:24]=2)=[O:19])=[C:7]([C:1]2[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]=2)[CH:12]=1)([CH3:15])[CH3:14])=[N+:28]=[N-:29]

Participants

Conditions

Temperature: 0 °C

Procedure

To a mixture of 4-cyano-1H-imidazole-2-carboxylic acid [2-cyclohex-1-enyl-4-(1-hydroxy-1-methyl-ethyl)-phenyl]-amide (as prepared in example 12, 15.0 mg, 0.0428 mmol) and NaN3 (27.8 mg, 0.428 mmol) in 1 mL of chloroform at 0° C. under Ar was added TFA (49 μL, 0.642 mmol). The resulting mixture was stirred at 0° C. for 1 h under Ar. Treated with 30 mL of EtOAc, the mixture was washed with saturated NaHCO3 aqueous solution (10 mL), brine (10 mL) and dried (Na2SO4). Removal of the solvent under reduced pressure followed by flash chromatography of the residue on silica gel (0-5% EtOAc/DCM) gave 13.6 mg (84%) of the title compound as a white solid. Mass spectrum (ESI, m/z): Calcd. for C20H21N7O, 376.2 (M+H), found 376.0.

Workup

washthe mixture was washed with saturated NaHCO3 aqueous solution (10 mL), brine (10 mL)
dry with materialdried (Na2SO4)
customRemoval of the solvent under reduced pressure

Sources & evidence

ORD record: ord-202b08c888e840d3b187de7a10c91941
Source dataset: uspto-grants-2010_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07790724B2

Reaction notes

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