Sodium Hydroxide → N-{4-[3-(4-fluorobenzenesulfonyl)-4-hydroxyphenoxy]-3,5-dimethylphenyl}oxamic acid
반응식
C([O:3][C:4](=[O:34])[C:5]([NH:7][C:8]1[CH:13]=[C:12]([CH3:14])[C:11]([O:15][C:16]2[CH:21]=[CH:20][C:19]([OH:22])=[C:18]([S:23]([C:26]3[CH:31]=[CH:30][C:29]([F:32])=[CH:28][CH:27]=3)(=[O:25])=[O:24])[CH:17]=2)=[C:10]([CH3:33])[CH:9]=1)=[O:6])C.[OH-].[Na+]>CCO>[F:32][C:29]1[CH:28]=[CH:27][C:26]([S:23]([C:18]2[CH:17]=[C:16]([CH:21]=[CH:20][C:19]=2[OH:22])[O:15][C:11]2[C:12]([CH3:14])=[CH:13][C:8]([NH:7][C:5](=[O:6])[C:4]([OH:34])=[O:3])=[CH:9][C:10]=2[CH3:33])(=[O:25])=[O:24])=[CH:31][CH:30]=1참가 물질
실험 절차
A solution of the title E compound, N-{4-[3-(4-fluorobenzenesulfonyl)-4-hydroxyphenoxy]-3,5-dimethylphenyl}oxamic acid ethyl ester (773 mg, 1.58 mmol) in 15 mL of EtOH is treated with aqueous 1N sodium hydroxide (NaOH; 4.75 mL, 4.75 mmol) at RT. After 1 h, the reaction is quenched with aqueous 1N HCl (5.5 mL) and the product is taken up in EtOAc, washed with brine, dried over anhydrous Na2SO4 and concentrated. The product is triturated with Et2O and dried in vacuo to afford N-{4-[3-(4-fluorobenzenesulfonyl)-4-hydroxyphenoxy]-3,5-dimethylphenyl}oxamic acid: NMR (DMSO-d6) 2.06 (s, 6H), 6.88 (d, 1H, J=9), 7.03 (dd, 1H, J=9,3), 7.13 (d, 1H, J=3), 7.43 (app t, 2H, J=9), 7.61 (s, 2H), 7.94 (dd, 2H, J=9,5), 10.5 (s, 1H), 10.69 (s, 1H); IR (KBr) 1240, 1481, 1685, 1764; ESI-MS 458 [M−1]−.
후처리
- customthe reaction is quenched with aqueous 1N HCl (5.5 mL)
- washwashed with brine
- dry with materialdried over anhydrous Na2SO4
- concentrationconcentrated
- customThe product is triturated with Et2O
- customdried in vacuo
출처 및 근거
- ORD 기록
- ord-538ce574b47041dbb8c4334e060b73e6
- 출처 데이터셋
- uspto-grants-2003_07
- 특허 번호
- US06599942B1
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