Water → N-(2-chlorophenyl)-N-methyl-4,5-dihydropyrido[4,3-b]thieno[2,3-d]oxepin-2-carboxamide

HRID 84468Notes

Reaction equation

HRID 84468 reaction equation
[H-].[Na+].[Cl:3][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[NH:10][C:11]([C:13]1[S:26][C:16]2[C:17]3[CH:25]=[N:24][CH:23]=[CH:22][C:18]=3[O:19][CH2:20][CH2:21][C:15]=2[CH:14]=1)=[O:12].[CH3:27]I.O>O1CCCC1>[Cl:3][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[N:10]([CH3:27])[C:11]([C:13]1[S:26][C:16]2[C:17]3[CH:25]=[N:24][CH:23]=[CH:22][C:18]=3[O:19][CH2:20][CH2:21][C:15]=2[CH:14]=1)=[O:12]

Participants

6

Reactant 4

HCID 962WaterHCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 57900340N-(2-chlorophenyl)-4,5-dihydropyrido[4,3-b]thieno[2,3-d]oxepin-2-carboxamide

Product 1

HCID 44242495N-(2-chlorophenyl)-N-methyl-4,5-dihydropyrido[4,3-b]thieno[2,3-d]oxepin-2-carboxamideYield 67.4%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

Sodium hydride, 60% dispersion in mineral oil (80 mg, 2.0 mmol) was added to a solution of N-(2-chlorophenyl)-4,5-dihydropyrido[4,3-b]thieno[2,3-d]oxepin-2-carboxamide (71.4 mg, 0.2 mmol) in 10 ml of tetrahydrofuran. The mixture was stirred for 30 min and mixed with methyl iodide (0.12 mL, 2.0 mmol). The reaction mixture was stirred for 1 hour. The mixture was mixed with 50 ml of iced water and extracted with ethyl acetate twice. The combined ethyl acetate solution was washed with brine, dried over MgSO4, concentrated in vacuo, and purified on silica gel column eluting with 25% of ethylacetate in methylene chloride to give 162 (yield 50 mg, 67%). 1H NMR (400 MHz, DMSO) δ 8.57 (s, 1H), 8.25 (d, J=5.5, 1H), 7.68 (t, J=5.9, 2H), 7.60-7.50 (m, 2H), 6.98 (d, J=5.5, 1H), 6.64 (s, 1H), 4.27 (m, 2H), 3.28 (s, 3H), 2.99 (m, 2H). MS (ESI+) 371.1

Workup

  1. stirringThe reaction mixture was stirred for 1 hour
  2. extractionextracted with ethyl acetate twice
  3. washThe combined ethyl acetate solution was washed with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. custompurified on silica gel column
  7. washeluting with 25% of ethylacetate in methylene chloride

Sources & evidence

ORD record
ord-d104d45393c4468fa134b1448c664289
Source dataset
uspto-grants-2014_09
Patent number
US08846762B2

Reaction notes

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