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Deoxycorticosterone → 17-(2-((5-Bromopentyl)oxy)acetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one

HRID 2039394
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HRID 2039394 반응식
[CH3:1][C@@:2]12[C@@H:10]([C:11]([CH2:13][OH:14])=[O:12])[CH2:9][CH2:8][C@H:7]1[C@@H:6]1[CH2:15][CH2:16][C:17]3[C@@:23]([CH3:24])([C@H:5]1[CH2:4][CH2:3]2)[CH2:22][CH2:21][C:19](=[O:20])[CH:18]=3.[Br:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30]Br.[OH-].[K+].[OH-].C([N+](CCCC)(CCCC)CCCC)CCC>ClCCl>[Br:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][O:14][CH2:13][C:11]([CH:10]1[C:2]2([CH3:1])[CH:7]([CH:6]3[CH:5]([CH2:4][CH2:3]2)[C:23]2([CH3:24])[C:17](=[CH:18][C:19](=[O:20])[CH2:21][CH2:22]2)[CH2:16][CH2:15]3)[CH2:8][CH2:9]1)=[O:12]
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참가 물질

6

반응물 4

HCID 6166DeoxycorticosteroneHCID 81001,5-DibromopentaneHCID 14797Potassium HydroxideHCID 2723671Tetrabutylammonium Hydroxide

생성물 1

HCID 8667556417-(2-((5-Bromopentyl)oxy)acetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one수율 43.1%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A mixture of 21-hydroxyprogesterone (200 mg, 0.605 mmol), 1,5-dibromopentane (1.65 mL, 12.1 mmol), 40% KOH (300 μL), and tetrabutylammonium hydroxide (60 μL) was stirred for 16 h at room temperature. The reaction mixture was diluted in dichloromethane and washed with water three times. The organic layer was dried over sodium sulfate and concentrated by rotary evaporation. The crude residue was purified by flash chromatography with hexanes/ethyl acetate (2:1) as the eluent to afford 7 as a colorless oil (125 mg, 43%). 1H NMR (500 MHz, CDCl3) δ 5.67 (s, 1H), 3.96 (q, J=17.2 Hz, 2H), 3.41 (t, J=6.4 Hz, 2H), 3.38-3.31 (m, 2H), 2.56 (t, J=9.1 Hz, 1H), 2.40-2.09 (m, 6H), 1.96 (m, 1H), 1.90-1.74 (m, 5H), 1.72-1.16 (m, 14H), 1.12 (s, 3H), 1.05-0.86 (m, 2H), 0.65-0.58 (m, 3H). 13C NMR (125 MHz, CDCl3) δ 207.55, 198.50, 169.94, 122.92, 75.79, 70.34, 61.56, 57.43, 55.12, 52.51, 43.53, 37.54, 34.61, 32.85, 31.74, 31.47, 30.82, 28.69, 27.74, 23.77, 23.47, 21.81, 19.97, 16.34, 12.55. ESI-MS m/z [M+H]+ observed: 481.1, calculated: 481.2.

후처리

  1. washwashed with water three times
  2. dry with materialThe organic layer was dried over sodium sulfate
  3. concentrationconcentrated by rotary evaporation
  4. customThe crude residue was purified by flash chromatography with hexanes/ethyl acetate (2:1) as the eluent

출처 및 근거

ORD 기록
ord-2eb90a60653e4f30baa88e53e86256c1
출처 데이터셋
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08580231B2

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