Triethylamine → 1-(benzo[d][1,3]dioxol-5-yl)-N-(2-(1-hydroxypropan-2-yl)-1H-indol-5-yl)cyclopropanecarboxamide

HRID 1991817Notes

Reaction equation

HRID 1991817 reaction equation
[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([OH:15])=O)[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(CC)CC.[NH2:47][C:48]1[CH:49]=[C:50]2[C:54](=[CH:55][CH:56]=1)[NH:53][C:52]([CH:57]([CH3:60])[CH2:58][OH:59])=[CH:51]2>C(#N)C>[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:47][C:48]4[CH:49]=[C:50]5[C:54](=[CH:55][CH:56]=4)[NH:53][C:52]([CH:57]([CH3:60])[CH2:58][OH:59])=[CH:51]5)=[O:15])[CH2:11][CH2:12]3)=[CH:9][C:4]=2[O:3][CH2:2]1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 143496081-(1,3-Dioxaindan-5-yl)cyclopropane-1-carboxylic acidHCID 591292022-(5-amino-1H-indol-2-yl)propan-1-ol

Product 1

HCID 591293231-(benzo[d][1,3]dioxol-5-yl)-N-(2-(1-hydroxypropan-2-yl)-1H-indol-5-yl)cyclopropanecarboxamideYield 51.2%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent2×

Procedure

To a solution of 1-(benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxylic acid (0.10 g, 0.49 mmol) in acetonitrile (2.0 mL) were added HBTU (0.185 g, 0.49 mmol) and Et3N (205 μL, 1.47 mmol) at room temperature. The mixture was allowed to stir at room temperature for 10 minutes before a slurry of 2-(5-amino-1H-indol-2-yl)propan-1-ol (0.093 g, 0.49 mmol) in acetonitrile (2.7 mL) was added. After addition, the reaction mixture was stirred at room temperature for 5.5 h. The solvent was evaporated under reduced pressure and the residue was dissolved in dichloromethane. The organic layer was washed with 1 N HCl (1×3 mL) and saturated aqueous NaHCO3 (1×3 mL). The organic layer was dried over Na2SO4, filtered and evaporated under reduced pressure. The crude material was purified by column chromatography on silica gel (ethyl acetate/hexane=13/7) to give 1-(benzo[d][1,3]dioxol-5-yl)-N-(2-(1-hydroxypropan-2-yl)-1H-indol-5-yl)cyclopropanecarboxamide (0.095 g, 51%). 1H NMR (400 MHz, DMSO-d6) δ 10.74 (s, 1H), 8.38 (s, 1H), 7.55 (s, 1H), 7.14 (d, J=8.6 Hz, 1H), 7.02-6.90 (m, 4H), 6.06 (s, 1H), 6.02 (s, 2H), 4.76 (t, J=5.3 Hz, 1H), 3.68-3.63 (m, 1H), 3.50-3.44 (m, 1H), 2.99-2.90 (m, 1H), 1.41-1.38 (m, 2H), 1.26 (d, J=7.0 Hz, 3H), 1.05-1.02 (m, 2H).

Workup

  1. additionwas added
  2. additionAfter addition
  3. customThe solvent was evaporated under reduced pressure
  4. dissolutionthe residue was dissolved in dichloromethane
  5. washThe organic layer was washed with 1 N HCl (1×3 mL) and saturated aqueous NaHCO3 (1×3 mL)
  6. dry with materialThe organic layer was dried over Na2SO4
  7. filtrationfiltered
  8. customevaporated under reduced pressure
  9. customThe crude material was purified by column chromatography on silica gel (ethyl acetate/hexane=13/7)

Sources & evidence

ORD record
ord-3614f67b36264f489390a5314f92c739
Source dataset
uspto-grants-2010_01
Patent number
US07645789B2

Reaction notes

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