Lithium hydroxide, monohydrate → 3-Methoxy-4-[1-methyl-5-(2-methyl-4,4,4-trifluorobutylcarbamoyl)indol-3-ylmethyl]benzoic acid

HRID 1741904Notes

Reaction equation

HRID 1741904 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:10]=[CH:11][C:12]=1[CH2:13][C:14]1[C:22]2[C:17](=[CH:18][CH:19]=[C:20]([C:23](=[O:33])[NH:24][CH2:25][CH:26]([CH3:32])[CH2:27][C:28]([F:31])([F:30])[F:29])[CH:21]=2)[N:16]([CH3:34])[CH:15]=1)[C:6]([O:8]C)=[O:7].O.[OH-].[Li+]>CO.O1CCCC1.O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:10]=[CH:11][C:12]=1[CH2:13][C:14]1[C:22]2[C:17](=[CH:18][CH:19]=[C:20]([C:23](=[O:33])[NH:24][CH2:25][CH:26]([CH3:32])[CH2:27][C:28]([F:30])([F:29])[F:31])[CH:21]=2)[N:16]([CH3:34])[CH:15]=1)[C:6]([OH:8])=[O:7]

Participants

6

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 10005193HCID 10005193, compound

Product 1

HCID 100499743-Methoxy-4-[1-methyl-5-(2-methyl-4,4,4-trifluorobutylcarbamoyl)indol-3-ylmethyl]benzoic acidYield 88.5%

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of methyl 3-methoxy-4-[1-methyl-5-(2-methyl-4,4,4-trifluorobutylcarbamoyl)indol-3-ylmethyl]benzoate (0.64 g) in methanol (3.5 mL), tetrahydrofuran (3.5 mL) and water (1.3 mL) was treated with lithium hydroxide monohydrate (0.34 g). The mixture was stirred for 18 hours and the organic solvents evaporated. The resulting aqueous solution was acidified with 10% (w/v) hydrochloric acid. The white precipitate which formed was collected by filtration, washed with water and dried under vacuum to give 3-methoxy-4-[1-methyl-5-(2-methyl-4,4,4-trifluorobutylcarbamoyl)indol-3-ylmethyl]benzoic acid as a white powder (0.55 g, 88%); partial NMR (300 MHz, DMSO-d6): 1.00 (d, 3H, CHCH3) 3.21 (m, 2H, NCH2), 3.76 (s, 3H, NCH3), 3.91 (s, 3H, OCH3), 4.07 (s, 2H, CH2), 7.15 (m, 2H, ArH), 7.46 (m, 3H, ArH), 7.68 (dd, 1H, ArH), 8.10 (d, 1H, ArH), 8.44 (t, 1H, NHCO).

Workup

  1. customthe organic solvents evaporated
  2. customThe white precipitate which formed
  3. filtrationwas collected by filtration
  4. washwashed with water
  5. customdried under vacuum

Sources & evidence

ORD record
ord-48dd9c06ca844426a80d05d4d3d0fe5b
Source dataset
uspto-grants-1994_08
Patent number
US05334765

Reaction notes

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