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Lithium hydroxide, monohydrate → {6-Fluoro-3-methyl-4-[4-(toluene-2-sulfonyl)-phenyl]-naphthalen-2-yl}-acetic acid

HRID 1468355
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HRID 1468355 반응식
C[O:2][C:3](=[O:33])[CH2:4][C:5]1[C:14]([CH3:15])=[C:13]([C:16]2[CH:21]=[CH:20][C:19]([S:22]([C:25]3[C:26]([CH3:31])=[CH:27][CH:28]=[CH:29][CH:30]=3)(=[O:24])=[O:23])=[CH:18][CH:17]=2)[C:12]2[C:7](=[CH:8][CH:9]=[C:10]([F:32])[CH:11]=2)[CH:6]=1.O.[OH-].[Li+]>C1COCC1.O>[F:32][C:10]1[CH:11]=[C:12]2[C:7](=[CH:8][CH:9]=1)[CH:6]=[C:5]([CH2:4][C:3]([OH:33])=[O:2])[C:14]([CH3:15])=[C:13]2[C:16]1[CH:21]=[CH:20][C:19]([S:22]([C:25]2[C:26]([CH3:31])=[CH:27][CH:28]=[CH:29][CH:30]=2)(=[O:23])=[O:24])=[CH:18][CH:17]=1
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참가 물질

5

반응물 2

HCID 168937Lithium hydroxide, monohydrateHCID 86694947{6-Fluoro-3-methyl-4-[4-(toluene-2-sulfonyl)-phenyl]-naphthalen-2-yl}-acetic acid methyl ester

생성물 1

HCID 71712075{6-Fluoro-3-methyl-4-[4-(toluene-2-sulfonyl)-phenyl]-naphthalen-2-yl}-acetic acid수율 55.7%

시약·촉매·용매 2

HCID 962Water용매HCID 8028Tetrahydrofuran
용매

실험 절차

To a solution of {6-fluoro-3-methyl-4-[4-(toluene-2-sulfonyl)-phenyl]-naphthalen-2-yl}-acetic acid methyl ester (20 mg, 0.04 mmol) in THF (5 mL) was added a solution of lithium hydroxide monohydrate (19.3 mg, 0.46 mmol) in water (1 mL) at room temperature. The resulting clear solution was stirred for 15 hours and then THF was removed under vacuum. Water (30 mL) was added and the mixture was acidified with 1.0N hydrochloric acid. The resulting solids were collected by filtration and washed with water and hexanes. After drying in air, {6-fluoro-3-methyl-4-[4-(toluene-2-sulfonyl)-phenyl]-naphthalen-2-yl}-acetic acid (10 mg, 52%) was isolated as off-white solid. 1H NMR (400 MHz, Methanol-d4) δ ppm 8.27 (d, J=7.9 Hz, 1 H), 8.04 (d, J=8.2 Hz, 2 H), 7.88 (dd, J=8.8, 6.0 Hz, 1 H), 7.81 (s, 1 H), 7.61 (t, J=7.5 Hz, 1 H), 7.48-7.55 (m, 1 H), 7.48 (d, J=8.2 Hz, 2 H), 7.40 (d, J=7.5 Hz, 1 H), 7.22 (td, J=8.8, 2.1 Hz, 1H), 6.65 (dd, J=11.2, 2.1 Hz, 1 H), 3.86 (s, 2 H), 2.52 (s, 3 H), 2.11 (s, 3 H). HRMS (ES−) calcd. for C26H20FO4S [(M−H)−] 447.1072, obsd. 447.1070.

후처리

  1. customTHF was removed under vacuum
  2. additionWater (30 mL) was added
  3. filtrationThe resulting solids were collected by filtration
  4. washwashed with water and hexanes
  5. customAfter drying in air

출처 및 근거

ORD 기록
ord-b881b36d90de4cafb508aee448b2ab22
출처 데이터셋
uspto-grants-2015_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09000044B2

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