Estrone → 3-Hydroxy-13-methyl-16-pyridin-3-ylmethylene-6,7,8,9,11,12,13,14,15,16-decahydro-cyclopenta[a]phenanthren-17-one

HRID 1675916

反応式

HRID 1675916 の反応式
[OH-].[Na+].[CH3:3][C@@:4]12[C:20](=[O:21])[CH2:19][CH2:18][C@H:17]1[C@H:16]1[C@@H:7]([C:8]3[CH:9]=[CH:10][C:11]([OH:22])=[CH:12][C:13]=3[CH2:14][CH2:15]1)[CH2:6][CH2:5]2.[N:23]1[CH:28]=[CH:27][CH:26]=[C:25]([CH:29]=O)[CH:24]=1.CC(OCC1C2C(=CC=CC=2)C(COC(C)=O)=C2C=1C=CC=C2)=O>C(O)C>[OH:22][C:11]1[CH:10]=[CH:9][C:8]2[CH:7]3[CH:16]([CH2:15][CH2:14][C:13]=2[CH:12]=1)[CH:17]1[C:4]([CH3:3])([C:20](=[O:21])[C:19](=[CH:29][C:25]2[CH:24]=[N:23][CH:28]=[CH:27][CH:26]=2)[CH2:18]1)[CH2:5][CH2:6]3

参加物

6

反応物 4

HCID 5870EstroneHCID 103713-PyridinecarboxaldehydeHCID 14798Sodium HydroxideHCID 613145Acetic acid 10-acetoxymethyl-anthracen-9-ylmethyl ester

生成物 1

HCID 673496973-Hydroxy-13-methyl-16-pyridin-3-ylmethylene-6,7,8,9,11,12,13,14,15,16-decahydro-cyclopenta[a]phenanthren-17-one

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

Sodium hydroxide (1.0 g, 25 mmol) was added to a suspension of estrone (1.35 g, 5.0 mmol) and pyridine-3-carbaldehyde (595 mg, 5.0 mmol) in ethanol (40 mL) at room temperature. The resulting dark orange solution was stirred at room temperature for 4 hours. Then glacial acetic (ca. 10 mL) acid was added with stirring. The colour changed to light yellow and a light yellow solid precipitated. The solid was filtered off and washed with water (50 mL), ethanol (20 mL), diethyl ether (50 mL) and hexane (50 mL) and dried under high vacuum. Yield: 1.6313 g (90%) yellow powder. 1H-NMR (DMSO-d6, 400 MHz), δ: 0.90 (s, 3H, —CH3), 1.26-1.66 (m, 5H), 1.82-1.90 (m, 1H), 1.95-2.02 (m, 1H), 2.14-2.22 (m, 1H), 2.30-2.38 (m, 1H), 2.57-2.66 (m, 1H), 2.70-2.81 (m, 2H), 2.83-2.92 (m, 1H), 6.45 (d, J=2.3 Hz, 1H), 6.51 (dd, J=8.2, 2.3 Hz, 1H), 7.04 (d, J=8.2 Hz, 1H), 7.34 (s, 1H), 7.47 (dd, J=8.2, 5.1 Hz, 1H), 8.06 (d, J=8.2 Hz, 1H), 8.56 (dd, J=4.7, 1.2 Hz, 1H), 8.82 (d, J=1.6 Hz, 1H), 9,03 (s, 1H, —OH). LRMS (FAB+): 360.2 (100, [M+H]+). LRMS (FAB−): 276.1 (100), 358.2 (90, [M−H]−). HRMS (FAB+): 360.196434 C24H26NO2 requires 360.196354

後処理

  1. stirringwith stirring
  2. customprecipitated
  3. filtrationThe solid was filtered off
  4. washwashed with water (50 mL), ethanol (20 mL), diethyl ether (50 mL) and hexane (50 mL)
  5. customdried under high vacuum

出典と根拠

ORDレコード
ord-997694d3ba704bd4969010d67783e17f
出典データセット
uspto-grants-2011_08
特許番号
US08003783B2

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