Triethylamine → 5-(7-benzyloxy-3,4-dihydro-1H-isoquinolin-2-ylmethyl)-2-methyl-pyrimidin-4-ylamine

HRID 2294012Notes

Reaction equation

HRID 2294012 reaction equation
Cl[CH2:2][C:3]1[C:4]([NH2:10])=[N:5][C:6]([CH3:9])=[N:7][CH:8]=1.C(N(CC)CC)C.[CH2:18]([O:25][C:26]1[CH:35]=[C:34]2[C:29]([CH2:30][CH2:31][NH:32][CH2:33]2)=[CH:28][CH:27]=1)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1>CN(C)C=O>[CH2:18]([O:25][C:26]1[CH:35]=[C:34]2[C:29]([CH2:30][CH2:31][N:32]([CH2:2][C:3]3[C:4]([NH2:10])=[N:5][C:6]([CH3:9])=[N:7][CH:8]=3)[CH2:33]2)=[CH:28][CH:27]=1)[C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 4212454-Amino-5-(chloromethyl)-2-methylpyrimidineHCID 214630147-(Benzyloxy)-1,2,3,4-tetrahydroisoquinoline

Product 1

HCID 214736855-(7-benzyloxy-3,4-dihydro-1H-isoquinolin-2-ylmethyl)-2-methyl-pyrimidin-4-ylamineYield 51%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A suspension of 0.23 g (0.0012 mol) of 5-chloromethyl-2-methyl-pyrimidin-4-ylamine in 10 ml of dimethylformamide was treated with 0.42 ml (0.0030 mol) of triethylamine and 0.29 g (0.0012 mol) of 7-benzyloxy-1,2,3,4-tetrahydro-isoquinoline and the mixture was stirred at room temperature under argon for 18 hours. The solvent was distilled off in a high vacuum. The residue was partitioned between dichloromethane/water, extracted and dried over MgSO4. After removing the solvent the residue was chromatographed on silica gel with ethyl acetate as the eluent. 0.22 g (51%) of 5-(7-benzyloxy-3,4-dihydro-1H-isoquinolin-2-ylmethyl)-2-methyl-pyrimidin-4-ylamine was obtained as a colourless solid; m.p. 151°-153°.

Workup

  1. distillationThe solvent was distilled off in a high vacuum
  2. customThe residue was partitioned between dichloromethane/water
  3. extractionextracted
  4. dry with materialdried over MgSO4
  5. customAfter removing the solvent the residue
  6. customwas chromatographed on silica gel with ethyl acetate as the eluent

Sources & evidence

ORD record
ord-378920fcdbcd4390a64190d968976ed5
Source dataset
uspto-grants-1997_11
Patent number
US05688798

Reaction notes

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