Water → 4-(1-(3-(Trifluoromethyl)phenyl)-3-methyl-2,5-dioxo-1,2,3,4,5,6,7,8-octahydroquinazolin-4-yl)benzonitrile

HRID 517240Notes

Reaction equation

HRID 517240 reaction equation
[CH:1]([N-]C(C)C)(C)C.[Li+].[O:9]=[C:10]1[NH:19][CH:18]([C:20]2[CH:27]=[CH:26][C:23]([C:24]#[N:25])=[CH:22][CH:21]=2)[C:17]2[C:16](=[O:28])[CH2:15][CH2:14][CH2:13][C:12]=2[N:11]1[C:29]1[CH:34]=[CH:33][CH:32]=[C:31]([C:35]([F:38])([F:37])[F:36])[CH:30]=1.CI.O>CN(C)C=O>[F:37][C:35]([F:38])([F:36])[C:31]1[CH:30]=[C:29]([N:11]2[C:12]3[CH2:13][CH2:14][CH2:15][C:16](=[O:28])[C:17]=3[CH:18]([C:20]3[CH:21]=[CH:22][C:23]([C:24]#[N:25])=[CH:26][CH:27]=3)[N:19]([CH3:1])[C:10]2=[O:9])[CH:34]=[CH:33][CH:32]=1

Participants

6

Reactant 4

HCID 962WaterHCID 6328Methyl iodideHCID 2724682Lithium diisopropylamideHCID 86732326HCID 86732326, compound

Product 1

HCID 867323614-(1-(3-(Trifluoromethyl)phenyl)-3-methyl-2,5-dioxo-1,2,3,4,5,6,7,8-octahydroquinazolin-4-yl)benzonitrile

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Lithium diisopropylamide (2.0 M in tetrahydrofuran, 265 μL, 0.53 mmol) is added at 0° C. to a solution of 4-(2,5-dioxo-1-(3-(trifluoromethyl)phenyl)-1,2,3,4,5,6,7,8-octahydroquinazolin-4-yl)-benzonitrile (example 1, 200 mg, 0.486 mmol) in N,N-dimethylformamide (10 mL). Methyl iodide (40 μL, 0.64 mmol) is added and the mixture is stirred for 1 h. Water is added and the mixture is extracted twice with dichloromethane. The combined organic layers are concentrated under reduced pressure, and the residue is purified by reversed phase HPLC (Waters Xbridge™-C18, gradient of acetonitrile in water, 0.1% TFA). Yield: 50 mg; ESI mass spectrum [M+H]+=426; Retention time HPLC: 1.29 min (V001—006).

Workup

  1. extractionthe mixture is extracted twice with dichloromethane
  2. concentrationThe combined organic layers are concentrated under reduced pressure
  3. customthe residue is purified by reversed phase HPLC (Waters Xbridge™-C18, gradient of acetonitrile in water, 0.1% TFA)
  4. custom1.29 min (V001—006)

Sources & evidence

ORD record
ord-e883b1230bb04a76a01445be40d9ad2b
Source dataset
uspto-grants-2015_08
Patent number
US09115093B2

Reaction notes

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