Trifluoroacetic acid → HCID 178424519, compound

HRID 1508147Notes

Reaction equation

HRID 1508147 reaction equation
[CH3:1][C:2]1([CH3:28])[CH2:7][CH2:6][C:5]([C:8]2[CH:13]=[C:12]([C:14](O)([CH3:16])[CH3:15])[CH:11]=[CH:10][C:9]=2[NH:18][C:19]([C:21]2[NH:22][CH:23]=[C:24]([C:26]#[N:27])[N:25]=2)=[O:20])=[CH:4][CH2:3]1.[NH2:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][N:31]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[CH3:1][C:2]1([CH3:28])[CH2:7][CH2:6][C:5]([C:8]2[CH:13]=[C:12]([C:14]([CH3:16])([NH:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][N:31]=3)[CH3:15])[CH:11]=[CH:10][C:9]=2[NH:18][C:19]([C:21]2[NH:22][CH:23]=[C:24]([C:26]#[N:27])[N:25]=2)=[O:20])=[CH:4][CH2:3]1

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 104392-AminopyridineHCID 178424524HCID 178424524, compound

Product 1

HCID 178424519HCID 178424519, compoundYield 2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a mixture of 4-cyano-1H-imidazole-2-carboxylic acid [2-(4,4-dimethyl-cyclohex-1-enyl)-4-(1-hydroxy-1-methyl-ethyl)-phenyl]-amide (as prepared in Example 14, step (d), 120 mg, 0.317 mmol) and 2-aminopyridine (448 mg, 4.76 mmol) in 5 mL of DCM at 0° C. was added 244 μL (3.17 mmol) of TFA. The mixture was allowed to warm to room temperature, at which time it was cooled in an ice bath and filtered. The filtrate was concentrated in vacuo with MeOH (10 mL) and purified by preparative thin layer chromatography ((2×) with 10% MeOH—CHCl3) to afford 2.5 mg (2%) of the title compound as a white solid. 1H-NMR (CDCl3-CD3OD; 400 MHz): δ 8.16 (d, 1H, J=8.6 Hz), 7.88 (m, 1H), 7.64 (s, 1H), 7.29 (m, 1H), 7.18 (d, 1H, J=2.0 Hz), 7.16-7.11 (m, 1H), 7.47-7.44 (m, 1H), 5.81 (d, 1H, J=8.6 Hz), 5.66 (m, 1H), 2.16-2.13 (m, 2H), 1.99 (m, 2H), 1.59 (s, 6H), 1.52-1.44 (m, 2H), 0.99 (s, 6H). Mass spectrum (ESI, m/z): Calcd. for C27H30N6O 455.2 (M+H). found 455.1.

Workup

  1. temperaturewas cooled in an ice bath
  2. filtrationfiltered
  3. concentrationThe filtrate was concentrated in vacuo with MeOH (10 mL)
  4. custompurified by preparative thin layer chromatography ((2×) with 10% MeOH—CHCl3)

Sources & evidence

ORD record
ord-df724f6eb63044f8981ea7d728c621bf
Source dataset
uspto-grants-2015_12
Patent number
US09221797B2

Reaction notes

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