Sodium Hydroxide → HCID 22261093, compound

HRID 898471Notes

Reaction equation

C([O:3][C:4](=[O:37])[C:5]([O:8][C:9]1[CH:14]=[CH:13][C:12]([O:15][CH2:16][CH2:17][C:18]2[N:19]=[C:20]([C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=3)[O:21][C:22]=2[CH3:23])=[CH:11][C:10]=1[CH2:30][C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)([CH3:7])[CH3:6])C.[OH-].[Na+]>C1COCC1.CO>[CH2:30]([C:10]1[CH:11]=[C:12]([O:15][CH2:16][CH2:17][C:18]2[N:19]=[C:20]([C:24]3[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=3)[O:21][C:22]=2[CH3:23])[CH:13]=[CH:14][C:9]=1[O:8][C:5]([CH3:7])([CH3:6])[C:4]([OH:37])=[O:3])[C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1

Participants

Conditions

Temperature: 55 °C

Procedure

A solution of 2-{2-benzyl-4-[2-(5-methyl-2-phenyloxazol-4-yl)ethoxy]phenoxy}-2-methylpropionic acid ethyl ester (1.15 g, 2.30 mmol) in THF (15 mL) and MeOH (30 mL) was treated with 2.5N aqueous NaOH (10 mL). The solution was heated at 55° C. for 2 h, cooled to ambient temperature, and concentrated in vacuo. The residue was acidified with 5N aqueous HCl (5 mL) and partitioned between EtOAc (125 mL) and H2O (25 mL). The organic layer was washed with brine (50 mL), dried (Na2SO4), and concentrated to a colorless oil (1.1 g, 100%): 1H NMR (400 MHz, CDCl3) δ 7.97 (dd, 2H, J=7.6, 2.2 Hz), 7.44-7.40 (m, 3H), 7.27-7.15 (m, 5H), 6.77 (d, 1H, J=8.8 Hz), 6.69 (d, 1H, J=2.9 Hz), 6.62 (dd, 1H, J=8.8, 2.9 Hz), 4.12 (t, 2H, J=6.4 Hz), 3.93 (s, 2H), 2.96 (t, 2H, J=6.6 Hz), 2.35 (s, 3H), 1.45 (s, 6H); MS (ES) m/e 472 [M+1].

Workup

temperaturecooled to ambient temperature
concentrationconcentrated in vacuo
custompartitioned between EtOAc (125 mL) and H2O (25 mL)
washThe organic layer was washed with brine (50 mL)
dry with materialdried (Na2SO4)
concentrationconcentrated to a colorless oil (1.1 g, 100%)

Sources & evidence

ORD record: ord-acedeb7056b34c2498bc329fb3c9edb3
Source dataset: uspto-grants-2008_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07351728B2

Reaction notes

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