Water → (4Z)-6-bromo-4-[[[3-hydroxy-4-(2-pyrrolidin-1-ylethoxy)phenyl]methylamino]methylidene]isoquinoline-1,3-dione

HRID 2236624Notes

Reaction equation

HRID 2236624 reaction equation
[NH2:1][CH2:2][C:3]1[CH:4]=[CH:5][C:6]([O:10][CH2:11][CH2:12][N:13]2[CH2:17][CH2:16][CH2:15][CH2:14]2)=[C:7]([OH:9])[CH:8]=1.C(N(CC)CC)C.[Br:25][C:26]1[CH:27]=[C:28]2[C:33](=[CH:34][CH:35]=1)[C:32](=[O:36])[NH:31][C:30](=[O:37])/[C:29]/2=[CH:38]/OC.O>CN(C)C=O>[Br:25][C:26]1[CH:27]=[C:28]2[C:33](=[CH:34][CH:35]=1)[C:32](=[O:36])[NH:31][C:30](=[O:37])/[C:29]/2=[CH:38]\[NH:1][CH2:2][C:3]1[CH:4]=[CH:5][C:6]([O:10][CH2:11][CH2:12][N:13]2[CH2:17][CH2:16][CH2:15][CH2:14]2)=[C:7]([OH:9])[CH:8]=1

Participants

6

Reactant 4

HCID 962WaterHCID 8471TriethylamineHCID 592998755-Aminomethyl-2-(2-pyrrolidin-1-yl-ethoxy)-phenolHCID 68692760(E)-6-bromo-4-(methoxymethylene)isoquinoline-1,3(2H,4H)-dione

Product 1

HCID 178518273(4Z)-6-bromo-4-[[[3-hydroxy-4-(2-pyrrolidin-1-ylethoxy)phenyl]methylamino]methylidene]isoquinoline-1,3-dioneYield 66.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

An amount of 33.5 mg (0.142 mmol) of 5-Aminomethyl-2-(2-pyrrolidin-1-yl-ethoxy)-phenol, is dissolved in N,N-dimethylformamide (2 ML). 30 μl (0.213 mmol) of triethylamine is added followed by 20 mg (0.071 mmol) of (4E)-6-bromo-4-(methoxymethylene)isoquinoline-1,3(2H,4H)-dione. After the mixture is stirred at room temperature for 30 min, water (2 mL) is added and the reaction mixture is stirred for 60 min. The precipitate is filtered and washed several times with anhydrous ether. The crude solid is then purified by high performance liquid chromatography to give 23 mg of a yellow solid. MS (ESI) m/z 486.3 (M+1).

Workup

  1. stirringthe reaction mixture is stirred for 60 min
  2. filtrationThe precipitate is filtered
  3. washwashed several times with anhydrous ether
  4. customThe crude solid is then purified by high performance liquid chromatography

Sources & evidence

ORD record
ord-2586240e61844c80a7de342dfc656ae6
Source dataset
uspto-grants-2010_05
Patent number
US07713994B2

Reaction notes

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