Water → N-(1-acetyl-2-tert-butyl-1H-indol-5-yl)-1-(benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamide

HRID 1908555Notes

Reaction equation

HRID 1908555 reaction equation
[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3([C:13]([NH:15][C:16]4[CH:17]=[C:18]5[C:22](=[CH:23][CH:24]=4)[NH:21][C:20]([C:25]([CH3:28])([CH3:27])[CH3:26])=[CH:19]5)=[O:14])[CH2:12][CH2:11]3)=[CH:9][C:4]=2[O:3][CH2:2]1.[H-].[Na+].[C:31](Cl)(=[O:33])[CH3:32].O>CN(C=O)C.C1COCC1.CN(C=O)C>[C:31]([N:21]1[C:22]2[C:18](=[CH:17][C:16]([NH:15][C:13]([C:10]3([C:8]4[CH:7]=[CH:6][C:5]5[O:1][CH2:2][O:3][C:4]=5[CH:9]=4)[CH2:12][CH2:11]3)=[O:14])=[CH:24][CH:23]=2)[CH:19]=[C:20]1[C:25]([CH3:28])([CH3:27])[CH3:26])(=[O:33])[CH3:32]

Participants

7

Reactant 4

HCID 962WaterHCID 6367Acetyl chlorideHCID 24758Sodium hydrideHCID 247629031-(Benzo[d][1,3]dioxol-5-yl)-N-(2-tert-butyl-1H-indol-5-yl)cyclopropanecarboxamide

Product 1

HCID 59129212N-(1-acetyl-2-tert-butyl-1H-indol-5-yl)-1-(benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamide

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 21974620tetrahydrofuran N,N-dimethylformamideSolvent

Conditions

Temperature
-15 °C

Procedure

To a solution of 1-(benzo[d][1,3]dioxol-5-yl)-N-(2-tert-butyl-1H-indol-5-yl)cyclopropanecarboxamide (120 mg, 0.31 mmol) in anhydrous DMF-THF (3.3 mL, 1:9) was added NaH (60% in mineral oil, 49 mg, 1.2 mmol) at room temperature. After 30 min under N2, the suspension was cooled down to −15° C. and a solution of acetyl chloride (1.1 eq.) in DMF (0.5 mL) was added dropwise. The reaction mixture was stirred for 30 min at −15° C. then for 6 h at room temperature. Water (0.5 mL) was added at 0° C., solvent was removed, and the residue was diluted with MeOH, filtrated and purified by preparative HPLC to give N-(1-acetyl-2-tert-butyl-1H-indol-5-yl)-1-(benzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamide. 1H NMR (400 MHz, DMSO) δ 8.9 (s, 1H), 7.74 (d, J=2.1 Hz, 1H), 7.54 (d, J=9.0 Hz, 1H), 7.28 (dd, J1=2.1 Hz, J2=9.0 Hz, 1H), 7.01 (d, J=1.5 Hz, 1H), 6.93 (dd, J1=1.7 Hz, J2=8.0 Hz, 1H), 6.89 (d, J=8.0 Hz, 1H), 6.54 (bs, 1H), 6.02 (s, 2H), 2.80 (s, 3H), 1.42-1.40 (m, 11H), 1.06-1.05 (m, 2H). MS (ESI) m/e (M+H+) 419.3.

Workup

  1. waitfor 6 h at room temperature
  2. customsolvent was removed
  3. additionthe residue was diluted with MeOH
  4. filtrationfiltrated
  5. custompurified by preparative HPLC

Sources & evidence

ORD record
ord-dba773f7cd854914a994d3c76a8163e8
Source dataset
uspto-grants-2013_12
Patent number
US08598181B2

Reaction notes

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