3-Buten-1-ol → 4-{4-[(1E)-4-hydroxybut-1-en-1-yl]-2-methylbenzyl}-5-(propan-2-yl)-1H-pyrazol-3-yl 2,3,4,6-tetra-O-benzoyl-beta-D-glucopyranoside

HRID 931672노트

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HRID 931672 반응식
[CH2:1]([OH:5])[CH2:2][CH:3]=[CH2:4].[C:6]([O:14][C@@H:15]1[C@@H:38]([O:39][C:40](=[O:47])[C:41]2[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=2)[C@H:37]([O:48][C:49](=[O:56])[C:50]2[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=2)[C@@H:36]([CH2:57][O:58][C:59](=[O:66])[C:60]2[CH:65]=[CH:64][CH:63]=[CH:62][CH:61]=2)[O:35][C@H:16]1[O:17][C:18]1[C:22]([CH2:23][C:24]2[CH:29]=[CH:28][C:27](Br)=[CH:26][C:25]=2[CH3:31])=[C:21]([CH:32]([CH3:34])[CH3:33])[NH:20][N:19]=1)(=[O:13])[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C>C(#N)C.C(N(CC)CC)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[C:6]([O:14][C@@H:15]1[C@@H:38]([O:39][C:40](=[O:47])[C:41]2[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=2)[C@H:37]([O:48][C:49](=[O:56])[C:50]2[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=2)[C@@H:36]([CH2:57][O:58][C:59](=[O:66])[C:60]2[CH:65]=[CH:64][CH:63]=[CH:62][CH:61]=2)[O:35][C@H:16]1[O:17][C:18]1[C:22]([CH2:23][C:24]2[CH:29]=[CH:28][C:27](/[CH:4]=[CH:3]/[CH2:2][CH2:1][OH:5])=[CH:26][C:25]=2[CH3:31])=[C:21]([CH:32]([CH3:34])[CH3:33])[NH:20][N:19]=1)(=[O:13])[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1

참가 물질

7

반응물 3

HCID 693893-Buten-1-olHCID 80271Tri-o-tolylphosphineHCID 867208784-(4-bromo-2-methylbenzyl)-5-(propan-2-yl)-1H-pyrazol-3-yl 2,3,4,6-tetra-O-benzoyl-beta-D-glucopyranoside

생성물 1

HCID 867208804-{4-[(1E)-4-hydroxybut-1-en-1-yl]-2-methylbenzyl}-5-(propan-2-yl)-1H-pyrazol-3-yl 2,3,4,6-tetra-O-benzoyl-beta-D-glucopyranoside수율 70.6%

시약·촉매·용매 3

HCID 167845palladium(II) acetate촉매HCID 6342Acetonitrile용매HCID 8471Triethylamine용매

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온도
90 °C

실험 절차

Add 3-buten-1-ol (0.58 mL, 6.8 mmol) to a solution of 4-(4-bromo-2-methylbenzyl)-5-(propan-2-yl)-1H-pyrazol-3-yl 2,3,4,6-tetra-O-benzoyl-beta-D-glucopyranoside (3 g, 3.4 mmol) in acetonitrile (30 mL) and triethylamine (20 mL). Degas the solution with nitrogen over 10 minutes. Add tri-o-tolylphosphine (205 mg, 0.67 mmol) and palladium acetate (76 mg, 0.34 mmol). Reflux at 90° C. for 2 hours. Cool to room temperature and concentrate to remove the solvent under the reduced pressure. Purify the residue by flash chromatography to yield the title compound (2.1 g, 2.4 mmol). MS (m/z): 878.4 (M+1).

후처리

  1. customDegas the solution with nitrogen over 10 minutes
  2. temperatureCool to room temperature
  3. concentrationconcentrate
  4. customto remove the solvent under the reduced pressure
  5. customPurify the residue by flash chromatography

출처 및 근거

ORD 기록
ord-7407444acdb54ce891ade3a235d73ec4
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09296775B2

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