4-Methylmorpholine → n,n-Dimethyl-5-[(2'-oxo-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3'-indol]-1'(2'h)-yl)methyl]furan-2-carboxamide

HRID 1407821노트

반응식

HRID 1407821 반응식
[O:1]=[C:2]1[C:10]2([C:22]3[C:13](=[CH:14][C:15]4[O:20][CH2:19][CH2:18][O:17][C:16]=4[CH:21]=3)[O:12][CH2:11]2)[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N:3]1[CH2:23][C:24]1[O:28][C:27]([C:29]([OH:31])=O)=[CH:26][CH:25]=1.Cl.[CH3:33][NH:34][CH3:35].Cl.CN(C)CCCN=C=NCC.O.ON1C2C=CC=CC=2N=N1.CN1CCOCC1>CN(C)C=O>[CH3:33][N:34]([CH3:35])[C:29]([C:27]1[O:28][C:24]([CH2:23][N:3]2[C:4]3[C:9](=[CH:8][CH:7]=[CH:6][CH:5]=3)[C:10]3([C:22]4[C:13](=[CH:14][C:15]5[O:20][CH2:19][CH2:18][O:17][C:16]=5[CH:21]=4)[O:12][CH2:11]3)[C:2]2=[O:1])=[CH:25][CH:26]=1)=[O:31]

참가 물질

7

반응물 5

HCID 79724-MethylmorpholineHCID 10473Dimethylamine, hydrochlorideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 593523035-[(2'-oxo-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3-indol]-1'(2'H)-yl)methyl]furan-2-carboxylic acid

생성물 1

HCID 59352595n,n-Dimethyl-5-[(2'-oxo-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3'-indol]-1'(2'h)-yl)methyl]furan-2-carboxamide수율 77%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

A solution of 5-[(2′-oxo-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-1′(2′H)-yl)methyl]furan-2-carboxylic acid (0.42 g, 1.00 mmol), dimethylamine hydrochloride (0.17 g, 2.04 mmol), N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (0.26 g, 1.35 mmol), 1-hydroxybenzotriazole hydrate (0.21 g, 1.54 mmol) and 4-methylmorpholine (0.30 mL, 2.7 mmol) in N,N-dimethylformamide (10 mL) was stirred at ambient temperature for 16 h. The solvent was removed under reduced pressure, the residue was taken up into ethyl acetate (75 mL) and washed sequentially with 1 M hydrochloric acid (2×50 mL), water (50 mL) and brine (50 mL). The organic phase was further diluted with dichloromethane until all the material was in solution, then was dried over sodium sulfate, filtered and concentrated under reduced pressure. Purification by flash column chromatography with dichloromethane/methanol (29:1) afforded N,N-dimethyl-5-[(2′-oxo-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-1′(2′H)-yl)methyl]furan-2-carboxamide (0.34 g, 77%) as a colorless solid: mp 224-226° C. (diethyl ether/hexanes); 1H NMR (300 MHz, DMSO-d6) δ7.32 (dd, J=7.5, 7.5 Hz, 1H), 7.22-7.14 (m, 2H), 7.05 (dd, J=7.8, 7.5 Hz, 1H), 6.96 (m, 1H), 6.62 (m, 1H), 6.51 (s, 1H), 6.06 (s, 1H), 5.06 (d, J=16.4 Hz, 1H), 4.97 (d, J=16.4 Hz, 1H), 4.76 (d, J=9.3 Hz, 1H), 4.66 (d, J=9.3 Hz, 1H), 4.22-4.14 (m, 2H), 4.14-4.06 (m, 2H), 3.05 (br s, 3H), 2.94 (br s, 3H); 13C NMR (75 MHz, DMSO-d6) δ176.4, 158.9, 154.6, 150.8, 147.2, 144.2, 141.8, 137.8, 131.6, 128.8, 123.6, 123.3, 121.2, 116.5, 111.0, 109.9, 109.4, 98.8, 79.3, 64.2, 63.6, 57.2, 37.7, 36.7, 35.8; MS (ES+) m/z 446.9 (M+1).

후처리

  1. customThe solvent was removed under reduced pressure
  2. washwashed sequentially with 1 M hydrochloric acid (2×50 mL), water (50 mL) and brine (50 mL)
  3. additionThe organic phase was further diluted with dichloromethane until all the material
  4. dry with materialwas dried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customPurification by flash column chromatography with dichloromethane/methanol (29:1)

출처 및 근거

ORD 기록
ord-f064c10b11224cd49e6af8aba14d8bfc
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08916580B2

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