반응식
C(OC(=O)[C:5]([O:15][C:16]1[CH:21]=[CH:20][CH:19]=[C:18]([F:22])[CH:17]=1)([CH3:14])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([OH:13])=[CH:9][CH:8]=1)C.[C:24]1([C:49]2[CH:54]=[CH:53][CH:52]=[CH:51][CH:50]=2)[CH:29]=[CH:28][CH:27]=[C:26]([C:30]2[O:31][C:32]([CH3:48])=[C:33]([CH2:35][CH2:36]OS(C3C=CC(C)=CC=3)(=O)=O)[N:34]=2)[CH:25]=1.[C:55]([O-:58])([O-])=[O:56].[K+].[K+].[OH-].[Na+]>C(O)C>[C:24]1([C:49]2[CH:50]=[CH:51][CH:52]=[CH:53][CH:54]=2)[CH:29]=[CH:28][CH:27]=[C:26]([C:30]2[O:31][C:32]([CH3:48])=[C:33]([CH2:35][CH2:36][O:13][C:10]3[CH:9]=[CH:8][C:7]([CH2:6][C:5]([O:15][C:16]4[CH:21]=[CH:20][CH:19]=[C:18]([F:22])[CH:17]=4)([CH3:14])[C:55]([OH:58])=[O:56])=[CH:12][CH:11]=3)[N:34]=2)[CH:25]=1참가 물질
실험 절차
A mixture of 2-(3-fluorophenoxy)-3-(4-hydroxyphenyl)-2-methyl-propionic acid ethyl ester (0.030 mmol), toluene-4-sulfonic acid 2-(2-biphenyl-3-yl-5-methyloxazol-4-yl)ethyl ester (0.030 mmol) (see Ex. 2, Part F) and 325 mesh K2CO3 (0.084 g, 0.60 mmol) in ethanol (2 mL) was heated to reflux for 24 h under N2. Aqueous 5N NaOH (0.5 mL) and additional ethanol (1 mL) was added to the reaction mixture and it was heated at reflux for an additional 2 h. The reaction was cooled and the solvent removed in vacuo. The residue was acidified with aqueous 1 N HCl (5 mL), extracted with water and CH2Cl2 and the organic layer dried by passing it through a Varian Chem Elut 1003 cartridge. The solvent was removed in vacuo to give 3-{4-[2-(2-Biphenyl-3-yl-5-methyl-oxazol-4-yl)ethoxy]-phenyl}-2-(3-fluoro-phenoxy)-2-methyl-propionic acid 1H NMR (400 MHz, CDCl3) δ 8.14 (s, 1H), 7.87 (d, 1H, J=7.8 Hz), 7.57 (d, 2H, J=7.8 Hz), 7.50–7.27 (m, 5H), 7.12 (m, 3H), 6.76 (d, 2H, J=8.6 Hz), 6.72–6.58 (m, 3H), 4.14 (t, 2H, J=6.7 Hz), 3.18 (d, 1H, J=14.1 Hz), 3.08 (d, 1H, J=14.1 Hz), 2.94 (t, 2H, J=6.7 Hz), 2.37 (s, 3H), 1.38 (s, 3H). MS (ES+) m/z mass calcd for C34H31FNO5 552.21, found 552.2.
후처리
- temperaturewas heated
- temperatureto reflux for 24 h under N2
- temperaturewas heated
- temperatureat reflux for an additional 2 h
- temperatureThe reaction was cooled
- customthe solvent removed in vacuo
- extractionextracted with water and CH2Cl2
- customthe organic layer dried
- customThe solvent was removed in vacuo
출처 및 근거
- ORD 기록
- ord-baf4844a9d4640a990b3984a028d6458
- 출처 데이터셋
- uspto-grants-2007_02
- 특허 번호
- US07176224B2
연결된 노트
불러오는 중…