Dimethylamine → 3-(4-Acetylamino-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-3-(3-cyclopropylmethoxy-4-difluoromethoxy-phenyl)-n,n-dimethyl-propionamide

HRID 1784969Notes

Reaction equation

HRID 1784969 reaction equation
[C:1]([NH:4][C:5]1[CH:13]=[CH:12][CH:11]=[C:10]2[C:6]=1[C:7](=[O:35])[N:8]([CH:15]([C:20]1[CH:25]=[CH:24][C:23]([O:26][CH:27]([F:29])[F:28])=[C:22]([O:30][CH2:31][CH:32]3[CH2:34][CH2:33]3)[CH:21]=1)[CH2:16][C:17](O)=[O:18])[C:9]2=[O:14])(=[O:3])[CH3:2].[C:36](N1C=CN=C1)([N:38]1C=CN=[CH:39]1)=O.CNC.O>O1CCCC1>[C:1]([NH:4][C:5]1[CH:13]=[CH:12][CH:11]=[C:10]2[C:6]=1[C:7](=[O:35])[N:8]([CH:15]([C:20]1[CH:25]=[CH:24][C:23]([O:26][CH:27]([F:28])[F:29])=[C:22]([O:30][CH2:31][CH:32]3[CH2:34][CH2:33]3)[CH:21]=1)[CH2:16][C:17]([N:38]([CH3:39])[CH3:36])=[O:18])[C:9]2=[O:14])(=[O:3])[CH3:2]

Participants

6

Reactant 4

HCID 674DimethylamineHCID 962WaterHCID 682631,1'-CarbonyldiimidazoleHCID 98483373-(4-Acetylamino-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-3-(3-cyclopropylmethoxy-4-difluoromethoxy-phenyl)-propionic acid

Product 1

HCID 117562453-(4-Acetylamino-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-3-(3-cyclopropylmethoxy-4-difluoromethoxy-phenyl)-n,n-dimethyl-propionamideYield 30%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 3-(4-acetylamino-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-3-(3-cyclopropylmethoxy-4-difluoromethoxy-phenyl)-propionic acid (470 mg, 1.04 mmol) in tetrahydrofurane (10 ml) was added carbonyldiimidazole (250 mg, 1.56 mmol) at room temperature. The solution was stirred at room temperature for 2 hours. To the mixture was added dimethylamine (2.0N in THF, 1.0 ml, 2.0 mmol). The resulted mixture was stirred at room temperature for 3 hours. Water (20 ml) was added to the reaction mixture. The solvent was removed in vacuo. The resulted mixture was dissolved in ethyl acetate (30 ml) and extracted with water (20 ml). The organic layer was washed with saturated sodium bicarbonate solution (3×20 ml), water (20 ml), brine (20 ml) and dried over magnesium sulfate. The solvent was removed in vacuo. The resulted oil was stirred with ether overnight. The suspension was filtered to give a yellowish solid. The solid was purified by HPLC (CH3CN:Water=45:55) to give 3-(4-acetylamino-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-3-(3-cyclopropylmethoxy-4-difluoromethoxy-phenyl)-N,N-dimethyl-propionamide as a white solid (160 mg, 30%): mp 80-82° C.; 1H NMR: δ (CDCl3): δ 0.33-0.39 (m, 2H), 0.60-0.68 (m, 2H), 1.21-1.30 (m, 1H), 2.25 (s, 3H), 2.90 (s, 3H), 2.97 (dd, J=5 Hz, the other doublet is buried, 1H), 3.05 (s, 3H), 3.87 (d, J=7.5 Hz, 2H), 3.94 (dd, J=10 Hz, the other doublet is buried, 1H), 5.83 (dd, J=5, 10 Hz, 1H), 6.69 (t, JH-F=75 Hz, 1H), 7.12-7.15 (m, 3H), 7.45 (d, J=7.5 Hz, 1H), 7.62 (t, J=7.5 Hz, 1H), 8.73 (d, J=8.5 Hz, 1H), 9.53 (s, 1H). 13C NMR (CDCl3): δ 3.8, 3.9, 10.8, 25.6, 35.4, 36.1, 37.7, 51.9, 74.5, 112.6, 116.7, 120.8, 114.9, 116.0, 118.5, 120.9, 123.4, 125.3, 131.9, 136.4, 138.0, 138.6, 140.7, 151.2, 168.7, 169.8, 169.9, 170.6; Anal. Calcd. for C26H27F2N3O6: C, 60.58; H, 5.28; N, 8.15; Found: C, 60.23; H, 5.26; N, 8.02.

Workup

  1. stirringThe resulted mixture was stirred at room temperature for 3 hours
  2. customThe solvent was removed in vacuo
  3. dissolutionThe resulted mixture was dissolved in ethyl acetate (30 ml)
  4. extractionextracted with water (20 ml)
  5. washThe organic layer was washed with saturated sodium bicarbonate solution (3×20 ml), water (20 ml), brine (20 ml)
  6. dry with materialdried over magnesium sulfate
  7. customThe solvent was removed in vacuo
  8. stirringThe resulted oil was stirred with ether overnight
  9. filtrationThe suspension was filtered
  10. customto give a yellowish solid
  11. customThe solid was purified by HPLC (CH3CN:Water=45:55)

Sources & evidence

ORD record
ord-bae428cf047c495fb22a3970fa1f4943
Source dataset
uspto-grants-2009_03
Patent number
US07504427B2

Reaction notes

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