Diisopropylethylamine → (2.3-Dihydro-benzo[1,4]dioxin-2-ylmethyl)-[3-(5-methoxy-1H-indol-3-yl)-propyl]-amine

HRID 1290257

반응식

HRID 1290257 반응식
Cl.[O:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[O:5][CH2:4][CH:3]1[CH2:12][NH2:13].[CH3:14][O:15][C:16]1[CH:17]=[C:18]2[C:22](=[CH:23][CH:24]=1)[NH:21][CH:20]=[C:19]2[CH2:25][CH2:26][CH2:27]Br.C(N(C(C)C)CC)(C)C>CN(C=O)C>[O:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[O:5][CH2:4][CH:3]1[CH2:12][NH:13][CH2:27][CH2:26][CH2:25][C:19]1[C:18]2[C:22](=[CH:23][CH:24]=[C:16]([O:15][CH3:14])[CH:17]=2)[NH:21][CH:20]=1

참가 물질

5

반응물 3

HCID 81531DiisopropylethylamineHCID 28498361,4-Benzodioxan, 2-(aminomethyl)-, hydrochlorideHCID 18923869HCID 18923869, 화합물

생성물 1

HCID 18923901(2.3-Dihydro-benzo[1,4]dioxin-2-ylmethyl)-[3-(5-methoxy-1H-indol-3-yl)-propyl]-amine수율 34%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매2회

반응 조건

온도
80 °C

실험 절차

2,3-Dihydro-1,4-benzodioxin-2-methanamine hydrochloride (2.3 g, 11.0 mmole) in DMF (100 ml) was slowly added to a mixture of 5-methoxy-3-(3-bromopropyl)indole (3.0 g, 11.0 mmole) and diisopropylethylamine (9.7 ml, 55 mmole) in 100 ml of DMF with stirring and the mixture was heated at 80° C. for 24 hours. Most of DMF was removed in vacuum and the residue was partitioned between dichloromethane and saturated aqueous sodium bicarbonate. The dichloromethane solution was dried over anhydrous sodium sulfate, filtered, concentrated in vacuum and chromatographed on silica gel using ethyl acetate as the eluant. The combined fractions of free base of the expected product (1.3 g, 3.7 mmole, 34%) were concentrated, treated with 0.25M of fumaric acid in ethanol (8.1 ml, 2.0 mmole) and diluted first with 50 ml of ethanol-diethyl ether (1:1) and then with a minimum amount of hexane to precipitate the title compound as a white solid, (2:1) fumarate salt, m.p. 135°-136° C.

후처리

  1. customMost of DMF was removed in vacuum
  2. customthe residue was partitioned between dichloromethane and saturated aqueous sodium bicarbonate
  3. dry with materialThe dichloromethane solution was dried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuum
  6. customchromatographed on silica gel

출처 및 근거

ORD 기록
ord-9ccc56ad12a2462daa5851204c59c692
출처 데이터셋
uspto-grants-1998_05
특허 번호
US05750724

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