Triethylamine → 4,4,4-Trifluoro-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)butan-1-one

HRID 2062167Notes

Reaction equation

HRID 2062167 reaction equation
[CH3:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6]([N:19]3[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]3)=[N:7][C:8]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[OH:18])=[N:9]2)=[CH:4][CH:3]=1.[F:25][C:26]([F:34])([F:33])[CH2:27][CH:28]([OH:32])[C:29](O)=[O:30].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C>CN(C=O)C.O>[F:25][C:26]([F:34])([F:33])[CH2:27][CH:28]([OH:32])[C:29]([N:22]1[CH2:23][CH2:24][N:19]([C:6]2[C:5]3[C:10](=[CH:11][C:2]([CH3:1])=[CH:3][CH:4]=3)[N:9]=[C:8]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[OH:18])[N:7]=2)[CH2:20][CH2:21]1)=[O:30]

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 198006174,4,4-Trifluoro-2-hydroxybutanoic acidHCID 1361346166-[7-methyl-4-(1-piperazinyl)-1H-quinazolin-2-ylidene]-1-cyclohexa-2,4-dienone

Product 1

HCID 1361214534,4,4-Trifluoro-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)butan-1-oneYield 69.2%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

2-(7-Methyl-4-(piperazin-1-yl)quinazolin-2-yl)phenol (87 mg, 0.27 mmol), 4,4,4-trifluoro-2-hydroxybutanoic acid (43 mg, 0.27 mmol), HATU (0.12 g, 0.33 mmol) and triethylamine (45 μL, 0.33 mmol) were stirred in DMF (3 mL) at room temperature overnight. The mixture was diluted with water and extracted with EtOAc. The combined organic layers were washed with brine and water, dried over Na2SO4 and concentrated. Purification via silica gel chromatography using 0-20% EtOAc in 1:1 CH2Cl2: hexanes gave 4,4,4-trifluoro-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)butan-1-one as an off-white solid (86 mg, 66%). 1H NMR (400 MHz, CDCl3) δ 8.46 (dd, J=8.0, 1.7 Hz, 1H), 7.77 (d, J=8.5 Hz, 1H), 7.70 (s, 1H), 7.41-7.37 (m, 1H), 7.31 (dd, J=8.5, 1.5 Hz, 1H), 7.05-7.03 (m, 1H), 6.97-6.93 (m, 1H), 4.80-4.75 (m, 1H), 4.07-3.68 (m, 9H), 2.56 (s, 3H), 2.50-2.39 (m, 2H); LC/MS: m/z 461.3 (M+H)+ at 2.49 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Workup

  1. extractionextracted with EtOAc
  2. washThe combined organic layers were washed with brine and water
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated
  5. customPurification via silica gel chromatography

Sources & evidence

ORD record
ord-6aca3162e2a04c468bc65c9955183daf
Source dataset
uspto-grants-2012_10
Patent number
US08283354B2

Reaction notes

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