Triethylamine → 3-chloro-N-[3-(2'-oxospiro[furo[2,3-f][1,3]benzodioxole-7,3'-indol]-1'(2'H)-yl)propyl]thiophene-2-carboxamide

HRID 425712

Reaction equation

HRID 425712 reaction equation
[NH2:1][CH2:2][CH2:3][CH2:4][N:5]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:7]2([C:17]3=[CH:18][C:19]4[O:23][CH2:22][O:21][C:20]=4[CH:24]=[C:16]3[O:15][CH2:14]2)[C:6]1=[O:25].C(N(CC)CC)C.[Cl:33][C:34]1[CH:38]=[CH:37][S:36][C:35]=1[C:39](Cl)=[O:40]>ClCCl>[Cl:33][C:34]1[CH:38]=[CH:37][S:36][C:35]=1[C:39]([NH:1][CH2:2][CH2:3][CH2:4][N:5]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:7]2([C:17]3=[CH:18][C:19]4[O:23][CH2:22][O:21][C:20]=4[CH:24]=[C:16]3[O:15][CH2:14]2)[C:6]1=[O:25])=[O:40]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 27358243-Chlorothiophene-2-carbonyl chlorideHCID 119998911'-(3-aminopropyl)spiro[furo[2,3-f]-[1,3]benzodioxole-7,3'-indol]-2'(1'H)-one

Product 1

HCID 592634603-chloro-N-[3-(2'-oxospiro[furo[2,3-f][1,3]benzodioxole-7,3'-indol]-1'(2'H)-yl)propyl]thiophene-2-carboxamideYield 69%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 1′-(3-aminopropyl)spiro[furo[2,3-f][1,3]benzodioxole-7,3′-indol]-2′(1′H)-one (0.05 g, 0.13 mmol) in dichloromethane (4.00 mL) was added triethylamine (0.03 g, 0.26 mmol) and 3-chlorothiophene-2-carbonyl chloride (0.02 g, 0.12 mmol) at 0° C. The mixture was stirred for 2 h, washed with 15% HCl solution and water. The organic layer was dried over MgSO4 and filtered. The filtrate was concentrated in vacuo to dryness. The residue was dissolved in ethyl acetate, and the product was precipitated with the addition of hexane. The white solid was collected by filtration and dried in vacuo to yield the title compound (0.04 g) in 67% yield: 1H NMR (300 MHz, CDCl3) δ 7.60 (t, 1H), 7.41 (d, 1H), 7.33-7.27-(m, 1H), 7.17 (d, 1H), 7.08-7.03-(m, 1H), 6.93 (t, 1H), 6.49 (s, 1H), 6.11 (s, 1H), 5.95 (m, 2H), 4.90 (d, 1H), 4.65 (d, 1H), 3.96-3.79-(m, 2H), 3.53-3.36-(m, 2H), 2.04-1.93-(m, 2H); 13C NMR (75 MHz, CDCl3) δ 178.3, 160.6, 156.0, 149.0, 142.4, 141.8, 132.5, 129.4, 129.2, 129.1, 124.2, 123.7, 123.6, 119.2, 108.5, 102.9, 101.6, 93.7, 80.5, 58.3, 37.4, 36.5, 27.3; MS (ES+) m/z 483 (M+1).

Workup

  1. washwashed with 15% HCl solution and water
  2. dry with materialThe organic layer was dried over MgSO4
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated in vacuo to dryness
  5. dissolutionThe residue was dissolved in ethyl acetate
  6. customthe product was precipitated with the addition of hexane
  7. filtrationThe white solid was collected by filtration
  8. customdried in vacuo

Sources & evidence

ORD record
ord-38af02eaecf246b99246071bebe244b8
Source dataset
uspto-grants-2012_01
Patent number
US08106087B2

Linked notes

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