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Diisopropylcarbodiimide → 3-{[4-(5-Methoxy-1H-indol-3-yl)-butylamino]methyl}-2,3-dihydrobenzo[1,4]dioxin-6-ol

HRID 1290255
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HRID 1290255 반응식
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[NH:8][CH:7]=[C:6]2[CH2:12][CH2:13][CH2:14][C:15](O)=O.O.ON1C2C=CC=CC=2N=N1.C(N=C=NC(C)C)(C)C.Cl.[OH:39][C:40]1[CH:41]=[CH:42][C:43]2[O:48][CH2:47][CH:46]([CH2:49][NH2:50])[O:45][C:44]=2[CH:51]=1>CN(C=O)C>[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[NH:8][CH:7]=[C:6]2[CH2:12][CH2:13][CH2:14][CH2:15][NH:50][CH2:49][CH:46]1[CH2:47][O:48][C:43]2[CH:42]=[CH:41][C:40]([OH:39])=[CH:51][C:44]=2[O:45]1
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참가 물질

6

반응물 4

HCID 12734DiisopropylcarbodiimideHCID 27960291-Hydroxybenzotriazole hydrateHCID 112417775-Methoxyindole-3-butyric acidHCID 189238902,3-Dihydro-7-hydroxy-1,4-benzodioxin-2-methanamine hydrochloride

생성물 1

HCID 189238683-{[4-(5-Methoxy-1H-indol-3-yl)-butylamino]methyl}-2,3-dihydrobenzo[1,4]dioxin-6-ol수율 65.4%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매2회

실험 절차

5-Methoxyindole-3-butyric acid (1.5 g, 6.4 mmole), 1-hydroxybenzotriazole hydrate (1.0 g, 7.7 mmole) and 1,3-diisopropylcarbodiimide (2.4 ml, 15.4 mmole) were combined in 150 ml of DMF and stirred at room temperature for 2 hours under a nitrogen atmosphere. To this was added dropwise 7-hydroxy-2,3-dihydro-1,4-benzodioxin-2-methanamine hydrochloride (1.4 g, 6.4 mmole) in 50 ml of DMF and the mixture was further stirred for 24 hours. The solvent was removed and the residue partitioned between dichloromethane and water. The separated dichloromethane layer was dried over anhydrous sodium sulfate, filtered and concentrated in vacuum. The residue was chromatographed on a silica gel column using first ethyl acetate and then 5% methanol in ethyl acetate as eluants. Evaporation of product-containing fractions gave 1.6 g (63%) of the desired product, (7-hydroxy-2,3-dihydro-benzo[1,4]dioxin-2-ylmethyl)-4-(5-methoxy-1H-indol-3-yl)-butanamide, as an oily solid.

후처리

  1. stirringthe mixture was further stirred for 24 hours
  2. customThe solvent was removed
  3. customthe residue partitioned between dichloromethane and water
  4. dry with materialThe separated dichloromethane layer was dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuum
  7. customThe residue was chromatographed on a silica gel column
  8. customEvaporation of product-containing fractions

출처 및 근거

ORD 기록
ord-c882b072f41e44a080ce475d587f4cc2
출처 데이터셋
uspto-grants-1998_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05750724

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