Lithium hydroxide, monohydrate → 2-((2-Chloro-4-(dimethylcarbamoyl)phenyl)(methyl) carbamoyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-8-carboxylic acid

HRID 1949782Notes

Reaction equation

HRID 1949782 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([C:8](=[O:12])[N:9]([CH3:11])[CH3:10])[CH:5]=[CH:4][C:3]=1[N:13]([CH3:34])[C:14]([C:16]1[S:33][C:19]2[C:20]3[CH:28]=[CH:27][C:26]([C:29]([O:31]C)=[O:30])=[CH:25][C:21]=3[O:22][CH2:23][CH2:24][C:18]=2[CH:17]=1)=[O:15].O[Li].O>C1COCC1.O>[Cl:1][C:2]1[CH:7]=[C:6]([C:8](=[O:12])[N:9]([CH3:10])[CH3:11])[CH:5]=[CH:4][C:3]=1[N:13]([CH3:34])[C:14]([C:16]1[S:33][C:19]2[C:20]3[CH:28]=[CH:27][C:26]([C:29]([OH:31])=[O:30])=[CH:25][C:21]=3[O:22][CH2:23][CH2:24][C:18]=2[CH:17]=1)=[O:15]

Participants

5

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 56834268Methyl 2-((2-chloro-4-(dimethylcarbamoyl)phenyl)(methyl)-carbamoyl)-4,5-dihydrobenzo[b] thieno[2,3-d]oxepine-8-carboxylate

Product 1

HCID 568342692-((2-Chloro-4-(dimethylcarbamoyl)phenyl)(methyl) carbamoyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-8-carboxylic acidYield 82.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

Methyl 2-((2-chloro-4-(dimethylcarbamoyl)phenyl)(methyl)-carbamoyl)-4,5-dihydrobenzo[b] thieno[2,3-d]oxepine-8-carboxylate (25.00 g, 50.1 mmol) was dissolved in THF (50 mL) and water (50 mL). The solution was treated with LiOH.H2O (5.26 g, 125.3 mmol). The reaction mixture was stirred at room temperature for 2 h. Concentrated to remove the solvent THF and the mixture was acidified by 2N HCl. The resulting precipitate was filtrated, washed by water, dried to give 2-((2-chloro-4-(dimethylcarbamoyl)phenyl)(methyl)carbamoyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-8-carboxylic acid (20.00 g, 82%). ESI-MS: 485.1. 1H NMR (CDCl3, 400 MHz): δ7.66-7.60 (m, 3H, ArH), 7.46-7.42 (m, 3H, ArH), 6.99 (s, 1H, ═CH), 4.23 (t, J=5.0 Hz, 2H, CH2), 3.39 (s, 3H, CH3), 3.14 (s, 3H, CH3), 3.07 (t, J=5.0 Hz, 2H, CH2), 3.02 (s, 3H, CH3).

Workup

  1. concentrationConcentrated
  2. customto remove the solvent THF
  3. filtrationThe resulting precipitate was filtrated
  4. washwashed by water
  5. customdried

Sources & evidence

ORD record
ord-8f3b21d7fd5540cfaba62024e4fb6c6d
Source dataset
uspto-grants-2013_03
Patent number
US08399690B2

Reaction notes

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