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Cyclopropylamine → N-(1-methylethyl)-2-[(2'-oxospiro[furo[2,3-f][1,3]benzodioxole-7,3'-indol]-1'(2'H)-yl)methyl]-1,3-oxazole-4-carboxamide

HRID 1407902
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HRID 1407902 반응식
[O:1]=[C:2]1[C:10]2([C:14]3=[CH:15][C:16]4[O:20][CH2:19][O:18][C:17]=4[CH:21]=[C:13]3[O:12][CH2:11]2)[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N:3]1[CH2:22][C:23]1[O:24][CH:25]=[C:26]([C:28]([OH:30])=O)[N:27]=1.O[N:32]1[C:36]2[CH:37]=CC=C[C:35]=2N=N1.C1(N)CC1>ClCCl>[CH3:35][CH:36]([NH:32][C:28]([C:26]1[N:27]=[C:23]([CH2:22][N:3]2[C:4]3[C:9](=[CH:8][CH:7]=[CH:6][CH:5]=3)[C:10]3([C:14]4=[CH:15][C:16]5[O:20][CH2:19][O:18][C:17]=5[CH:21]=[C:13]4[O:12][CH2:11]3)[C:2]2=[O:1])[O:24][CH:25]=1)=[O:30])[CH3:37]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 69828CyclopropylamineHCID 757711-HydroxybenzotriazoleHCID 686017222-((2'-oxo-6H-spiro[benzofuro[6,5-d][1,3]dioxole-7,3'-indoline]-1'-yl)methyl)oxazole-4-carboxylic acid

생성물 1

HCID 68599323N-(1-methylethyl)-2-[(2'-oxospiro[furo[2,3-f][1,3]benzodioxole-7,3'-indol]-1'(2'H)-yl)methyl]-1,3-oxazole-4-carboxamide수율 91%

시약·촉매·용매 1

HCID 6344
Dichloromethane
용매
2회

실험 절차

A solution of 2-((2′-oxo-6H-spiro[benzofuro[6,5-d][1,3]dioxole-7,3′-indoline]-1′-yl)methyl)oxazole-4-carboxylic acid (0.41 g, 1.0 mmol), N-hydroxybenzotriazole (0.20 g, 1.5 mmol) and 1-ethyl-3-(3-dimethyllaminopropyl)carbodiimide hydrochloride (0.29 g, 1.5 mmol) in dichloromethane (10 mL) was stirred for 30 min, followed by the addition of cyclopropylamine (0.8 mL). The solution was stirred at ambient temperature for 16 h, diluted with dichloromethane (100 mL), washed with distilled water (2×50 mL), dried over magnesium sulfate, filtered and concentrated in vacuo to dryness. The residue was purified by flash chromatography with ethyl acetate in hexanes (gradient: 50% to 75%) to afford N-(1-methylethyl)-2-[(2′-oxospiro[furo[2,3-f][1,3]benzodioxole-7,3′-indol]-1′(2′H)-yl)methyl]-1,3-oxazole-4-carboxamide (0.40 g, 91%) as a colorless solid: mp 188-191° C.; 1H NMR (300 MHz, CDCl3) δ8.14 (s, 1H), 7.28-7.22 (m, 1H), 7.19 (d, J=6.8 Hz, 1H), 7.07 (dd, J=7.4, 7.4 Hz, 1H), 6.85 (d, J=7.7 Hz, 2H), 6.49 (s, 1H), 6.16 (s, 1H), 5.85 (ABq, 2H), 5.04 (ABq, 2H), 4.81 (ABq, 2H), 2.82 (m, 1H), 0.85-0.77 (m, 2H), 0.64-0.58 (m, 2H); 13C NMR (75M Hz, CDCl3) δ177.2, 161.3, 158.1, 155.8, 149.0, 142.4, 141.8, 141.0, 136.6, 132.0, 129.1, 124.15, 124.10, 119.2, 108.6, 103.0, 101.6, 93.7, 80.2, 58.2, 37.1, 22.3, 6.60, 6.55; MS (ES+) m/z 446.2 (M+1).

후처리

  1. washwashed with distilled water (2×50 mL)
  2. dry with materialdried over magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo to dryness
  5. customThe residue was purified by flash chromatography with ethyl acetate in hexanes (gradient: 50% to 75%)

출처 및 근거

ORD 기록
ord-9b34cd56ff904d6184e312bc9558086e
출처 데이터셋
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08916580B2

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