4-Butylphenyl isocyanate → HCID 58770807, compound

HRID 657223

Reaction equation

HRID 657223 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][N:7]=[C:6]2[CH:15]1[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]1.[CH2:21]([C:25]1[CH:30]=[CH:29][C:28]([N:31]=[C:32]=[O:33])=[CH:27][CH:26]=1)[CH2:22][CH2:23][CH3:24]>CN(C=O)C>[CH2:21]([C:25]1[CH:30]=[CH:29][C:28]([NH:31][C:32]([N:18]2[CH2:19][CH2:20][CH:15]([C:6]3[C:5]4[C:10](=[CH:11][C:12]([O:13][CH3:14])=[C:3]([O:2][CH3:1])[CH:4]=4)[N:9]=[CH:8][N:7]=3)[CH2:16][CH2:17]2)=[O:33])=[CH:27][CH:26]=1)[CH2:22][CH2:23][CH3:24]

Participants

4

Reactant 2

HCID 27963134-Butylphenyl isocyanateHCID 595517346,7-Dimethoxy-4-(piperidin-4-yl)quinazoline

Product 1

HCID 58770807HCID 58770807, compoundYield 41.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of 6,7-dimethoxy-4-piperidin-4-yl-quinazoline (30 mg, 0.110 mmol), as prepared in Example 1d, in DMF (1 mL) was treated with 1-butyl-4-isocyanato-benzene (28.8 mg, 0.165 mmol) at RT overnight. The reaction was then partitioned between EtOAc (10 mL) and H2O (10 mL). The organic phase was dried over Na2SO4 and concentrated in vacuo. Purification by prep tlc (1:9 MeOH/DCM) afforded the title compound as a light yellow solid (20.3 mg, 41%). 1H NMR (300 MHz, CDCl3) δ 9.09 (s, 1H), 7.40 (s, 1H), 7.28 (m, 3H), 7.13-7.10 (m, 2H), 6.36 (br s, NH), 4.30-4.26 (m, 2H), 4.08 (s, 6H), 3.61 (m, 1H), 3.17 (m, 2H), 2.57 (m, 2H), 2.17 (m, 2H), 2.02-1.98 (m, 2H), 1.34 (m, 4H), 0.94-0.80 (m, 3H); LC/MS (ESI): calcd mass 448.3, found 449.3 [M+1]+.

Workup

  1. customThe reaction was then partitioned between EtOAc (10 mL) and H2O (10 mL)
  2. dry with materialThe organic phase was dried over Na2SO4
  3. concentrationconcentrated in vacuo
  4. customPurification by prep tlc (1:9 MeOH/DCM)

Sources & evidence

ORD record
ord-6d96e4c7538c4528ac89a8ff885adc61
Source dataset
uspto-grants-2011_12
Patent number
US08071768B2

Linked notes

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