Hydrochloric Acid → 2-[2-[[6-[(5-Methyl-2-phenyl-4-thiazolyl)methoxy]-3-pyridyl]methoxy]phenyl]acetic acid

HRID 1294339Notes

Reaction equation

[CH3:1][C:2]1[S:6][C:5]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[N:20]=[CH:19][C:18]([CH2:21][O:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=2[CH2:29][C:30]([O:32]C)=[O:31])=[CH:17][CH:16]=1.O1CCCC1.[OH-].[Na+].Cl>O.CO>[CH3:1][C:2]1[S:6][C:5]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[N:20]=[CH:19][C:18]([CH2:21][O:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=2[CH2:29][C:30]([OH:32])=[O:31])=[CH:17][CH:16]=1

Participants

Conditions

Temperature: 50 °C

Procedure

To a mixture of methyl 2-[2-[[6-[(5-methyl-2-phenyl-4-thiazolyl)methoxy]-3-pyridyl]methoxy]-phenyl]acetate (1.05 g), tetrahydrofuran (5 mL) and methanol (5 mL) was added a 1N aqueous sodium hydroxide solution (5 mL) and the mixture was stirred at 50° C. for 2 hrs. 1N Hydrochloric acid (5 mL) and water were added to the reaction mixture, and the precipitated crystals were collected by filtration and dried with air to give crystals (0.91 g, 88%) of 2-[2-[[6-[(5-methyl-2-phenyl-4-thiazolyl)methoxy]-3-pyridyl]methoxy]phenyl]acetic acid. Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 173-174° C.

Workup

filtrationthe precipitated crystals were collected by filtration
customdried with air

Sources & evidence

ORD record: ord-45a06007c8dd44e49a30973a3de2d625
Source dataset: uspto-grants-2007_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07238716B2

Reaction notes

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