반응식
[CH3:1][C:2]1([CH3:26])[CH2:11][CH2:10][C:9]([CH3:13])([CH3:12])[C:8]2[CH:7]=[C:6](/[C:14](/[CH3:25])=[CH:15]/[C:16]3[CH:24]=[CH:23][C:19]([C:20](Cl)=[O:21])=[CH:18][CH:17]=3)[CH:5]=[CH:4][C:3]1=2.[O:27]([CH3:39])[C@H:28]1[O:36][C@H:35]([CH2:37][OH:38])[C@@H:33]([OH:34])[C@H:31]([OH:32])[C@H:29]1[OH:30]>CCOCC.N1C=CC=CC=1>[CH3:1][C:2]1([CH3:26])[CH2:11][CH2:10][C:9]([CH3:13])([CH3:12])[C:8]2[CH:7]=[C:6](/[C:14](/[CH3:25])=[CH:15]/[C:16]3[CH:24]=[CH:23][C:19]([C:20]([O:30][C@@H:29]4[C@@H:31]([OH:32])[C@H:33]([OH:34])[C@@H:35]([CH2:37][O:38][C:20](=[O:21])[C:19]5[CH:23]=[CH:24][C:16](/[CH:15]=[C:14](/[C:6]6[CH:5]=[CH:4][C:3]7[C:2]([CH3:26])([CH3:1])[CH2:11][CH2:10][C:9]([CH3:13])([CH3:12])[C:8]=7[CH:7]=6)\[CH3:25])=[CH:17][CH:18]=5)[O:36][C@@H:28]4[O:27][CH3:39])=[O:21])=[CH:18][CH:17]=3)[CH:5]=[CH:4][C:3]1=2.[CH3:1][C:2]1([CH3:26])[CH2:11][CH2:10][C:9]([CH3:13])([CH3:12])[C:8]2[CH:7]=[C:6](/[C:14](/[CH3:25])=[CH:15]/[C:16]3[CH:24]=[CH:23][C:19]([C:20]([O:32][C@H:31]4[C@H:33]([OH:34])[C@@H:35]([CH2:37][O:38][C:20](=[O:21])[C:19]5[CH:23]=[CH:24][C:16](/[CH:15]=[C:14](/[C:6]6[CH:5]=[CH:4][C:3]7[C:2]([CH3:26])([CH3:1])[CH2:11][CH2:10][C:9]([CH3:13])([CH3:12])[C:8]=7[CH:7]=6)\[CH3:25])=[CH:17][CH:18]=5)[O:36][C@H:28]([O:27][CH3:39])[C@@H:29]4[OH:30])=[O:21])=[CH:18][CH:17]=3)[CH:5]=[CH:4][C:3]1=2참가 물질
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- 온도
- 0 °C
실험 절차
A solution of 100 mmol of p-[(E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-propenyl]-benzoyl chloride in 450 ml of ether was added while stirring at 0° C. over a period of 1 hour to a solution of 19.5 g of methyl α-D-glucopyranoside in 500 ml of pyridine. The mixture was stirred at 0° C. for a further 4 hours and at room temperature for 16 hours and then evaporated to dryness. The residue was dissolved in ethyl acetate and the extract was washed with 3 N hydrochloric acid, water, saturated aqueous sodium bicarbonate solution and water. After drying over sodium sulphate, the organic phase was evaporated and the residue was chromatographed on silica gel (hexane/ethyl acetate) to give methyl 2,6-bis-O-[p-[(E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-propenyl]-benzoyl]-α-D-glucopyranoside, melting point 203°-204° C. (from ethyl acetate), [α]D25 =+27.4° (c=1 in chloroform), and methyl 3,6-bis-O-[p-[(E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-propenyl]-benzoyl]-α-D-glucopyranoside, melting point 128°-129° C. (with decomposition, from methanol), [α]D25 =+135° (c=1 in chloroform).
후처리
- customevaporated to dryness
- dissolutionThe residue was dissolved in ethyl acetate
- washthe extract was washed with 3 N hydrochloric acid, water, saturated aqueous sodium bicarbonate solution and water
- dry with materialAfter drying over sodium sulphate
- customthe organic phase was evaporated
- customthe residue was chromatographed on silica gel (hexane/ethyl acetate)
출처 및 근거
- ORD 기록
- ord-790f5b17a8354b518b477bd53a9b33d1
- 출처 데이터셋
- uspto-grants-1982_02
- 특허 번호
- US04316983
연결된 노트
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