Ethanol → (S)-2-(5-(2-(2-(4-isopropylphenyl)-5-methylthiazol-4-yl)ethoxy)-2,3-dihydro-1H-inden-1-yl)acetic acid

HRID 1454031노트

반응식

HRID 1454031 반응식
[CH:1]([C:4]1[CH:9]=[CH:8][C:7]([C:10]2[S:11][C:12]([CH3:33])=[C:13]([CH2:15][CH2:16][O:17][C:18]3[CH:19]=[C:20]4[C:24](=[CH:25][CH:26]=3)[C@H:23]([CH2:27][C:28]([O:30]CC)=[O:29])[CH2:22][CH2:21]4)[N:14]=2)=[CH:6][CH:5]=1)([CH3:3])[CH3:2].CCO.[Li+].[OH-]>C1COCC1.O>[CH:1]([C:4]1[CH:5]=[CH:6][C:7]([C:10]2[S:11][C:12]([CH3:33])=[C:13]([CH2:15][CH2:16][O:17][C:18]3[CH:19]=[C:20]4[C:24](=[CH:25][CH:26]=3)[C@H:23]([CH2:27][C:28]([OH:30])=[O:29])[CH2:22][CH2:21]4)[N:14]=2)=[CH:8][CH:9]=1)([CH3:3])[CH3:2]

참가 물질

6

반응물 3

HCID 702EthanolHCID 3939Lithium HydroxideHCID 10195367ethyl ((1S)-5-{2-[2-(4-isopropylphenyl)-5-methyl-1,3-thiazol-4-yl]ethoxy}-2,3-dihydro-1h-inden-1-yl)acetate

생성물 1

HCID 10274664(S)-2-(5-(2-(2-(4-isopropylphenyl)-5-methylthiazol-4-yl)ethoxy)-2,3-dihydro-1H-inden-1-yl)acetic acid수율 66%

시약·촉매·용매 2

HCID 962Water용매2회HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of Example 27 (305 mg, 0.657 mmol) in a mixture of THF (8 mL), water (8 mL), and EtOH (4 mL), was added LiOH (63 mg, 2.63 mmol). The reaction mixture was vigorously stirred for 24 h, diluted with water (20 mL), and washed with Et2O (10 mL). The aqueous phase was then acidified to pH ˜1 using 1N HCl, and then extracted with CH2Cl2 (4×50 mL). The combined organic layers were dried (Na2SO4), filtered, and concentrated under reduced pressure. The residue was then purified by silica gel flash chromatography (95:5 CH2Cl2/MeOH) to afford product (189 mg, 66%) as a white solid. (C26H29NO3S): LC-MS, RT 3.95 min, M+H 436.4; 1H NMR (CDCl3): δ 1.25 (s, 3H), 1.28 (s, 3H), 1.70-1.82 (m, 1H), 2.32-2.43 (m, 2H), 2.45 (s, 3H), 2.74-2.98 (m, 4H), 3.18 (t, 2H), 3.47-3.54 (m, 1H), 4.28 (t, 2H), 6.72 (dd, 1H), 6.78 (s, 1H), 7.08 (d, 1H), 7.51 (AB quartet, 4H).

후처리

  1. washwashed with Et2O (10 mL)
  2. extractionextracted with CH2Cl2 (4×50 mL)
  3. dry with materialThe combined organic layers were dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was then purified by silica gel flash chromatography (95:5 CH2Cl2/MeOH)

출처 및 근거

ORD 기록
ord-ef493fd602204740a0a7fe4442db4ecf
출처 데이터셋
uspto-grants-2009_01
특허 번호
US07476742B2

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