Sodium Carbonate → 5-(2-chloro-4-fluorophenyl)-1-(2,6-dichlorophenyl)-7-[(5-isopropyl-2,5-diazabicyclo[2.2.1]hept-2-yl)methyl]-3-(4-methoxybenzyl)-3,4-dihydroquinazolin-2(1H)-one

HRID 394109Notes

Reaction equation

HRID 394109 reaction equation
Br[C:2]1[CH:11]=[C:10]([CH2:12][N:13]2[CH2:18][CH:17]3[CH2:19][CH:14]2[CH2:15][N:16]3[CH:20]([CH3:22])[CH3:21])[CH:9]=[C:8]2[C:3]=1[CH2:4][N:5]([CH2:32][C:33]1[CH:38]=[CH:37][C:36]([O:39][CH3:40])=[CH:35][CH:34]=1)[C:6](=[O:31])[N:7]2[C:23]1[C:28]([Cl:29])=[CH:27][CH:26]=[CH:25][C:24]=1[Cl:30].[Cl:41][C:42]1[CH:47]=[C:46]([F:48])[CH:45]=[CH:44][C:43]=1B(O)O.C(=O)([O-])[O-].[Na+].[Na+]>C1(C)C=CC=CC=1.C(O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:41][C:42]1[CH:47]=[C:46]([F:48])[CH:45]=[CH:44][C:43]=1[C:2]1[CH:11]=[C:10]([CH2:12][N:13]2[CH2:18][CH:17]3[CH2:19][CH:14]2[CH2:15][N:16]3[CH:20]([CH3:22])[CH3:21])[CH:9]=[C:8]2[C:3]=1[CH2:4][N:5]([CH2:32][C:33]1[CH:34]=[CH:35][C:36]([O:39][CH3:40])=[CH:37][CH:38]=1)[C:6](=[O:31])[N:7]2[C:23]1[C:24]([Cl:30])=[CH:25][CH:26]=[CH:27][C:28]=1[Cl:29]

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 177502292-Chloro-4-fluorobenzeneboronic acidHCID 226481855-bromo-1-(2,6-dichlorophenyl)-7-[(5-isopropyl-2,5-diazabicyclo[2.2.1]hept-2-yl)methyl]-3-(4-methoxybenzyl)-3,4-dihydroquinazolin-2(1H)-one

Product 1

HCID 226478785-(2-chloro-4-fluorophenyl)-1-(2,6-dichlorophenyl)-7-[(5-isopropyl-2,5-diazabicyclo[2.2.1]hept-2-yl)methyl]-3-(4-methoxybenzyl)-3,4-dihydroquinazolin-2(1H)-one

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 1140TolueneSolvent

Procedure

To a solution of 5-bromo-1-(2,6-dichlorophenyl)-7-[(5-isopropyl-2,5-diazabicyclo[2.2.1]hept-2-yl)methyl]-3-(4-methoxybenzyl)-3,4-dihydroquinazolin-2(1H)-one (200 mg, 0.31 mmol) and 2-chloro-4-fluoro-benzene boronic acid (98 mg, 0.62 mmol) in toluene (3 mL) and ethanol (0.3 mL) was added sodium carbonate (2M solution, 0.39 mL) and tetrakis(triphenylphosphine)palladium (0) (18 mg, 0.0155 mmol). The flask was evacuated and purged with nitrogen a few times. The reaction mixture was heated to reflux for 2 h and diluted with methylene chloride. The organic layer was washed with water and brine, and dried over anhydrous sodium sulfate. Removal of the solvent and subsequent purification by preparative thin layer chromatography using 5% of 2N ammonium in methanol/methylene chloride as eluent provided the 5-(2-chloro-4-fluorophenyl)-1-(2,6-dichlorophenyl)-7-[(5-isopropyl-2,5-diazabicyclo[2.2.1]hept-2-yl)methyl]-3-(4-methoxybenzyl)-3,4-dihydroquinazolin-2(1H)-one as a white solid. 1H NMR (CDCl3, 500 MHz): δ 1.03 (s, 3H), 1.08 (s, 3H), 1.64 (m, 2H), 2.40 (m, 1H), 2.57 (brs, 1H), 2.83 (t, 1H, J=7.3 Hz), 2.90 (brs, 1H), 3.14 (s, 1H), 3.53 (m, 2H), 3.63 (t, 1H, J=13.2 Hz), 3.81 (s, 3H), 4.11 (abq, 2H, J=14.9 Hz), 4.55 (abq, 2H, J=14.9 Hz), 6.22 (s, 1H), 6.78 (s, 1H), 6.84 (d, 2H, J=8.4 Hz), 6.99 (t, 1H, J=8.0 Hz), 7.12 (dd, 1H, J1=8.4 Hz, J2=6.0 Hz), 7.21 (d, 3H, J=8.7 Hz), 7.38 (t, 1H, J=8.0 Hz), 7.54 (m, 2H). MS (API-ES+): 695 (M+H).

Workup

  1. customThe flask was evacuated
  2. custompurged with nitrogen a few times
  3. temperatureThe reaction mixture was heated
  4. temperatureto reflux for 2 h
  5. additiondiluted with methylene chloride
  6. washThe organic layer was washed with water and brine
  7. dry with materialdried over anhydrous sodium sulfate
  8. customRemoval of the solvent and subsequent purification by preparative thin layer chromatography

Sources & evidence

ORD record
ord-4c295ba8543245339f7634aec763fedb
Source dataset
uspto-grants-2004_10
Patent number
US06809199B2

Reaction notes

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