Triethylamine → HCID 135461071, compound

HRID 2062246Notes

Reaction equation

HRID 2062246 reaction equation
F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.[CH3:28][C:29]1[CH:38]=[C:37]2[C:32]([C:33]([N:46]3[CH2:51][CH2:50][NH:49][CH2:48][CH2:47]3)=[N:34][C:35]([C:39]3[CH:44]=[CH:43][CH:42]=[CH:41][C:40]=3[OH:45])=[N:36]2)=[CH:31][CH:30]=1.[OH:52][C@H:53]([CH2:57][CH:58]([CH3:60])[CH3:59])[C:54](O)=[O:55].C(N(CC)CC)C>CN(C=O)C>[OH:52][C@H:53]([CH2:57][CH:58]([CH3:60])[CH3:59])[C:54]([N:49]1[CH2:50][CH2:51][N:46]([C:33]2[C:32]3[C:37](=[CH:38][C:29]([CH3:28])=[CH:30][CH:31]=3)[N:36]=[C:35]([C:39]3[CH:44]=[CH:43][CH:42]=[CH:41][C:40]=3[OH:45])[N:34]=2)[CH2:47][CH2:48]1)=[O:55]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 439960(R)-2-hydroxy-4-methylpentanoic acidHCID 1361346166-[7-methyl-4-(1-piperazinyl)-1H-quinazolin-2-ylidene]-1-cyclohexa-2,4-dienone

Product 1

HCID 135461071HCID 135461071, compoundYield 66.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Under an N2 atmosphere, BOP (138 mg, 0.31 mmol) was added in a single portion to a stirring solution of 2-(7-methyl-4-(piperazin-1-yl)quinazolin-2-yl)phenol (100 mg, 0.31 mmol), (R)-2-hydroxy-4-methylpentanoic acid (41 mg, 0.31 mmol), and triethylamine (43 μL, 0.31 mmol) in DMF (0.5 ml). After stirring the mixture for 1 h at room temperature, it was partitioned between H2O and ether. The organic phase was washed with H2O (3×20 mL), dried over MgSO4, filtered, and concentrated. Purification via silica gel chromatography using 20% EtOAc and 80% CH2Cl2 gave (R)-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)-4-methylpentan-1-one as a light yellow solid (89 mg, 60%). LC/MS: m/z 435.1 (M+H)+ at 2.93 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)). 1H NMR (400 MHz, CDCl3) δ 8.46 (dd, J=7.9, 1.7 Hz, 1H), 7.76 (d, J=8.5 Hz, 1H), 7.66 (s, 1H), 7.41-7.37 (m, 1H), 7.30 (dd, J=8.5, 1.5 Hz, 1H), 7.06-7.04 (m, 1H), 6.98-6.94 (m, 1H), 4.51-4.45 (m, 1H), 4.04-3.80 (m, 6H), 3.72-3.62 (m, 3H), 2.56 (s, 3H), 2.12-1.99 (m, 1H), 1.57-1.49 (m, 1H), 1.38-1.32 (m, 1H), 1.05 (d, J=6.6 Hz, 3H), 1.00 (d, J=6.7 Hz, 3H).

Workup

  1. customit was partitioned between H2O and ether
  2. washThe organic phase was washed with H2O (3×20 mL)
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customPurification via silica gel chromatography

Sources & evidence

ORD record
ord-e143802393c04bf8abe8cd01f0daa0fa
Source dataset
uspto-grants-2012_10
Patent number
US08283354B2

Reaction notes

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