Hydrochloric Acid → 3-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyloxy)-5-isopropyl-4-({4-[3-(methanesulfonyloxy)propoxy]-2-methylphenyl}methyl)-1H-pyrazole

HRID 1868990노트

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HRID 1868990 반응식
[C:1]([O:4][C@@H:5]1[C@@H:10]([O:11][C:12](=[O:14])[CH3:13])[C@H:9]([O:15][C:16](=[O:18])[CH3:17])[C@@H:8]([CH2:19][O:20][C:21](=[O:23])[CH3:22])[O:7][C@H:6]1[O:24][C:25]1[C:29]([CH2:30][C:31]2[CH:36]=[CH:35][C:34]([O:37][CH2:38][CH2:39][CH2:40][OH:41])=[CH:33][C:32]=2[CH3:42])=[C:28]([CH:43]([CH3:45])[CH3:44])[NH:27][N:26]=1)(=[O:3])[CH3:2].C(N(CC)CC)C.[CH3:53][S:54](Cl)(=[O:56])=[O:55].Cl>ClCCl>[C:1]([O:4][C@@H:5]1[C@@H:10]([O:11][C:12](=[O:14])[CH3:13])[C@H:9]([O:15][C:16](=[O:18])[CH3:17])[C@@H:8]([CH2:19][O:20][C:21](=[O:23])[CH3:22])[O:7][C@H:6]1[O:24][C:25]1[C:29]([CH2:30][C:31]2[CH:36]=[CH:35][C:34]([O:37][CH2:38][CH2:39][CH2:40][O:41][S:54]([CH3:53])(=[O:56])=[O:55])=[CH:33][C:32]=2[CH3:42])=[C:28]([CH:43]([CH3:45])[CH3:44])[NH:27][N:26]=1)(=[O:3])[CH3:2]

참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 689406463-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyloxy)-4-{[4-(3-hydroxypropoxy)-2-methylphenyl]-methyl}-5-isopropyl-1H-pyrazole

생성물 1

HCID 866020273-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyloxy)-5-isopropyl-4-({4-[3-(methanesulfonyloxy)propoxy]-2-methylphenyl}methyl)-1H-pyrazole

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of 3-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)-4-{[4-(3-hydroxypropoxy)-2-methylphenyl]-methyl}-5-isopropyl-1H-pyrazole (1 g) in dichloromethane (16 mL) were added triethylamine (0.29 mL) and methanesulfonyl chloride (0.15 mL), and the mixture was stirred at room temperature for 3 hours. The reaction mixture was poured into 0.5 mol/L hydrochloric acid, and the resulting mixture was extracted with ethyl acetate. The organic layer was washed with water, and dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure to give 3-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)-5-isopropyl-4-({4-[3-(methanesulfonyloxy)propoxy]-2-methylphenyl}methyl)-1H-pyrazole (1.12 g). The obtained 3-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)-5-isopropyl-4-({4-[3-(methanesulfonyloxy)propoxy]-2-methylphenyl}methyl)-1H-pyrazole (0.2 g) was dissolved in a mixed solvent of acetonitrile (2 mL) and ethanol (2 mL). To the solution were added 2-amino-2-methyl-1-propanol (0.25 g) and a catalytic amount of sodium iodide, and the mixture was stirred at 60° C. for 2 days. The reaction mixture was concentrated under reduced pressure, and the residue was dissolved in methanol (3 mL). To the solution was added sodium methoxide (28% methanol solution, 0.16 mL), and the mixture was stirred at room temperature for 1 hour. The reaction mixture was concentrated under reduced pressure, and the residue was purified by solid phase extraction on ODS (washing solvent: distilled water, eluent: methanol) to give the title compound (0.13 g).

후처리

  1. extractionthe resulting mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was removed under reduced pressure

출처 및 근거

ORD 기록
ord-3f92bc0418f44f018ff9979dde24cdcf
출처 데이터셋
uspto-grants-2009_12
특허 번호
US07635684B2

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