Water → Tert-butyl 4-{[5-(2-chlorophenyl)-1-(2,6-dichlorophenyl)-2-oxo-1,2,3,4-tetrahydroquinazolin-7-yl]methyl}piperazine-2-carboxylate

HRID 394105Notes

Reaction equation

HRID 394105 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[CH:17]=[C:16]([CH2:18][N:19]2[CH2:24][CH2:23][N:22](C(C)C)[CH:21]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:20]2)[CH:15]=[C:14]2[C:9]=1[CH2:10][NH:11][C:12](=[O:43])[N:13]2[C:35]1[C:40]([Cl:41])=[CH:39][CH:38]=[CH:37][C:36]=1[Cl:42].O>FC(F)(F)C(O)=O>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[CH:17]=[C:16]([CH2:18][N:19]2[CH2:24][CH2:23][NH:22][CH:21]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:20]2)[CH:15]=[C:14]2[C:9]=1[CH2:10][NH:11][C:12](=[O:43])[N:13]2[C:35]1[C:40]([Cl:41])=[CH:39][CH:38]=[CH:37][C:36]=1[Cl:42]

Participants

4

Reactant 2

HCID 962WaterHCID 10233169Tert-butyl 4-{[5-(2-chlorophenyl)-1-(2,6-dichlorophenyl)-2-oxo-1,2,3,4-tetrahydroquinazolin-7-yl]methyl}-1-isopropylpiperazine-2-carboxylate

Product 1

HCID 22648143Tert-butyl 4-{[5-(2-chlorophenyl)-1-(2,6-dichlorophenyl)-2-oxo-1,2,3,4-tetrahydroquinazolin-7-yl]methyl}piperazine-2-carboxylate

Reagents, catalysts & solvents 1

HCID 6422Trifluoroacetic acidSolvent

Procedure

To the solution of tert-butyl 4-{[5-(2-chlorophenyl)-1-(2,6-dichlorophenyl)-2-oxo-1,2,3,4-tetrahydroquinazolin-7-yl]methyl}-1-isopropylpiperazine-2-carboxylate (EXAMPLE AAA11, 30 mg, 0.047 mmol) in trifluoroacetic acid (0.6 mL) was added water (0.03 mL). The reaction was stirred at rt for 20 h. Removal of the solvent and subsequent addition of ether resulted in a white precipitate. Filtration of the precipitate followed by washing with ether provided the title compound. 1H NMR (CDCl3, 500 MHz): δ 1.22 (d, 3H, J=7.0 Hz), 1.24 (d, 3H, J=6.9 Hz), 3.12(m, 2H), 3.30 (m, 1H), 3.44 (m, 1H), 3.50 (abq, 2H, J=7.1 Hz), 3.74 (m, 1H), 3.81 (m, 1H), 3.96 (m, 1H), 4.07 (m, 1H), 4.28 (dd, 1H, J1=14.6 Hz, J2=5.7 Hz), 4.42 (dd, 1H, J1=14.9 Hz, J2=10.1 Hz), 5.80 (brs, 1H), 6.13 (d, 1H, J=9.8 Hz), 6.95 (s, 1H), 7.32-7.58 (m, 7H). MS (API-ES+): 589 (M+H).

Workup

  1. customRemoval of the solvent and subsequent addition of ether
  2. customresulted in a white precipitate
  3. filtrationFiltration of the precipitate
  4. washby washing with ether

Sources & evidence

ORD record
ord-0507c88ec8c34b1c90373eb2b45b9290
Source dataset
uspto-grants-2004_10
Patent number
US06809199B2

Reaction notes

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