Triethylamine → 2-((6-(Methylsulfonyl)-2-(4-(oxazol-5-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)(phenyl)amino)ethanol

HRID 1930565Notes

Reaction equation

HRID 1930565 reaction equation
[O:1]1[C:5]([C:6]2[CH:11]=[CH:10][C:9]([NH:12][C:13]3[N:14]=[C:15]([N:23]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[CH2:24][CH2:25][OH:26])[C:16]4[CH2:22][NH:21][CH2:20][CH2:19][C:17]=4[N:18]=3)=[CH:8][CH:7]=2)=[CH:4][N:3]=[CH:2]1.C(N(CC)CC)C.[CH3:40][S:41](Cl)(=[O:43])=[O:42]>CO.ClCCl>[CH3:40][S:41]([N:21]1[CH2:20][CH2:19][C:17]2[N:18]=[C:13]([NH:12][C:9]3[CH:10]=[CH:11][C:6]([C:5]4[O:1][CH:2]=[N:3][CH:4]=4)=[CH:7][CH:8]=3)[N:14]=[C:15]([N:23]([C:27]3[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=3)[CH2:24][CH2:25][OH:26])[C:16]=2[CH2:22]1)(=[O:43])=[O:42]

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 462000502-((2-(4-(Oxazol-5-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)(phenyl)amino)ethanol

Product 1

HCID 462006662-((6-(Methylsulfonyl)-2-(4-(oxazol-5-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)(phenyl)amino)ethanolYield 11.4%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Procedure

2-((2-(4-(Oxazol-5-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)(phenyl)amino)ethanol (40 mg, 0.09 mmol, Example 1) was dissolved in methanol (0.5 mL) and dichloromethane (3 mL). Triethylamine (0.013 mL, 0.09 mmol) and methanesulfonyl chloride (7.23 μL, 0.09 mmol) were added and the reaction mixture was stirred at room temperature, under nitrogen atmosphere, for 3 h. The solvent was evaporated under reduced pressure, the crude dissolved in few drops of dimethylformamide and acetonitrile, filtered and purified by preparative HPLC yielding 2-((6-(methylsulfonyl)-2-(4-(oxazol-5-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)(phenyl)amino)ethanol (5.2 mg, 10.15%).

Workup

  1. customThe solvent was evaporated under reduced pressure
  2. dissolutionthe crude dissolved in few drops of dimethylformamide and acetonitrile
  3. filtrationfiltered
  4. custompurified by preparative HPLC

Sources & evidence

ORD record
ord-b53d9d0420d04ed0aba365eb804d2aac
Source dataset
uspto-grants-2012_05
Patent number
US08188101B2

Reaction notes

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