Triethylamine → HCID 136121360, compound

HRID 2062235Notes

Reaction equation

HRID 2062235 reaction equation
C(O[C:9]([N:11]1[CH2:16][CH2:15][N:14]([C:17](=[O:24])[C@H:18]([OH:23])[CH2:19][C:20](=[O:22])[CH3:21])[CH2:13][CH2:12]1)=O)C1C=CC=CC=1.ClC1[C:35]2[C:30](=[CH:31][C:32]([CH3:36])=[CH:33][CH:34]=2)[N:29]=[C:28]([C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][C:38]=2[OH:43])[N:27]=1.C(N(CC)CC)C>[Pd].CO>[OH:23][C@H:18]([CH2:19][C:20](=[O:22])[CH3:21])[C:17]([N:14]1[CH2:13][CH2:12][N:11]([C:9]2[C:35]3[C:30](=[CH:31][C:32]([CH3:36])=[CH:33][CH:34]=3)[N:29]=[C:28]([C:37]3[CH:42]=[CH:41][CH:40]=[CH:39][C:38]=3[OH:43])[N:27]=2)[CH2:16][CH2:15]1)=[O:24]

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 58010827HCID 58010827, compoundHCID 1361050322-(4-Chloro-7-methylquinazolin-2-yl)-phenol

Product 1

HCID 136121360HCID 136121360, compoundYield 54%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

A mixture of 4-((R)-2-hydroxy-4-oxo-pentanoyl)-piperazine-1-carboxylic acid benzyl ester (0.13 g, 0.39 mmol) and MeOH (4 mL) was stirred with 10 mg of Pd/C (10% wt Pd on carbon) under H2 atmosphere at ambient pressure overnight. After filtration and evaporation of the solvent, the residue was taken up in CH2Cl2, and 2-(4-chloro-7-methylquinazolin-2-yl)phenol (0.11 g, 0.39 mmol) and triethylamine (0.11 mL, 0.78 mmol) were added. The reaction mixture was stirred at room temperature overnight, washed with water, dried over Na2SO4, and concentrated. Purification via silica gel chromatography using 0-10% MeOH/CH2Cl2 provided (R)-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)pentane-1,4-dione as a yellow solid (91 mg, 54%). LC/MS: m/z 435.5 (M+H)+ at 2.13 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Workup

  1. filtrationAfter filtration and evaporation of the solvent
  2. washwashed with water
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated
  5. customPurification via silica gel chromatography

Sources & evidence

ORD record
ord-69f2c0ad3fbd4537b93625314545c9b2
Source dataset
uspto-grants-2012_10
Patent number
US08283354B2

Reaction notes

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