Hydrochloric Acid → HCID 67147080, compound

HRID 1294300Notes

Reaction equation

[CH2:1]([O:3][C:4]1[CH:9]=[C:8]([O:10][CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=2[O:18][CH2:19][C:20]2[N:21]=[C:22]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[O:23][C:24]=2[CH3:25])[CH:7]=[CH:6][C:5]=1[CH2:32][CH2:33][C:34]([O:36]CC)=[O:35])[CH3:2].O1CCCC1.[OH-].[Na+].Cl>O.C(O)C>[CH2:1]([O:3][C:4]1[CH:9]=[C:8]([O:10][CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=2[O:18][CH2:19][C:20]2[N:21]=[C:22]([C:26]3[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=3)[O:23][C:24]=2[CH3:25])[CH:7]=[CH:6][C:5]=1[CH2:32][CH2:33][C:34]([OH:36])=[O:35])[CH3:2]

Participants

Conditions

Temperature: 50 °C

Procedure

To a mixture of ethyl 3-[2-ethoxy-4-[2-[(5-methyl-2-phenyl-4-oxazolyl)methoxy]benzyloxy]phenyl]propionate (0.62 g), tetrahydrofuran (3 mL) and ethanol (3 mL) was added a 1N aqueous sodium hydroxide solution (2.4 mL) and the mixture was stirred at 50° C. for 2 hrs. 1N Hydrochloric acid and water were added to acidify the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated to give crystals (0.50 g, 85%) of 3-[2-ethoxy-4-[2-[(5-methyl-2-phenyl-4-oxazolyl)methoxy]benzyloxy]phenyl]propionic acid. Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 112-113° C.

Workup

extractionthe mixture was extracted with ethyl acetate
washThe organic layer was washed with saturated brine
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated

Sources & evidence

ORD record: ord-3c7dad1ea856406e93632d3601641175
Source dataset: uspto-grants-2007_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07238716B2

Reaction notes

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