Triethylamine → cyclopropanecarboxylic acid {2-[1-(4-difluoromethoxy-3-ethoxy-phenyl)-2-methanesulfonyl-ethyl]-3-oxo-2,3-dihydro-1H-isoindol-4-yl}-amide

HRID 1367088Notes

Reaction equation

HRID 1367088 reaction equation
[F:1][CH:2]([F:20])[O:3][C:4]1[CH:9]=[CH:8][C:7]([CH:10]([NH2:16])[CH2:11][S:12]([CH3:15])(=[O:14])=[O:13])=[CH:6][C:5]=1[O:17][CH2:18][CH3:19].CCN(CC)CC.C[O:29][C:30](=O)[C:31]1[C:36]([NH:37][C:38]([CH:40]2[CH2:42][CH2:41]2)=[O:39])=[CH:35][CH:34]=[CH:33][C:32]=1[CH2:43]Br>CN(C=O)C>[F:20][CH:2]([F:1])[O:3][C:4]1[CH:9]=[CH:8][C:7]([CH:10]([N:16]2[C:30](=[O:29])[C:31]3[C:32](=[CH:33][CH:34]=[CH:35][C:36]=3[NH:37][C:38]([CH:40]3[CH2:42][CH2:41]3)=[O:39])[CH2:43]2)[CH2:11][S:12]([CH3:15])(=[O:14])=[O:13])=[CH:6][C:5]=1[O:17][CH2:18][CH3:19]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 588000791-(4-Difluoromethoxy-3-ethoxy-phenyl)-2-methanesulfonyl-ethylamineHCID 669203212-Bromomethyl-6-(cyclopropanecarbonyl-amino)-benzoic acid methyl ester

Product 1

HCID 10481374cyclopropanecarboxylic acid {2-[1-(4-difluoromethoxy-3-ethoxy-phenyl)-2-methanesulfonyl-ethyl]-3-oxo-2,3-dihydro-1H-isoindol-4-yl}-amideYield 30%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
90 °C

Procedure

To the DMF solution (20 ml) of 1-(4-difluoromethoxy-3-ethoxy-phenyl)-2-methanesulfonyl-ethylamine (0.80 g, 2.7 mmol) was added Et3N (1.6 ml, 12 mmol) followed by 2-bromomethyl-6-(cyclopropanecarbonyl-amino)-benzoic acid methyl ester (1.0 g, 3.2 mmol). The mixture was heated at 90° C. for 12 hours then cooled to room temperature. The mixture was extracted with EtOAc (50 ml) and water (50 ml). The organic layer was washed with water (50 ml) and brine (50 ml), dried over Na2SO4 and concentrated in vacuo. The resulted oil was purified by silica gel chromatography to give cyclopropanecarboxylic acid {2-[1-(4-difluoromethoxy-3-ethoxy-phenyl)-2-methanesulfonyl-ethyl]-3-oxo-2,3-dihydro-1H-isoindol-4-yl}-amide as white solid (0.35 g, 30%): mp 115-117° C.; 1H NMR (CDCl3) δ 0.83-0.92 (m, 2H, c-CH2), 1.09-1.13 (m, 2H, c-CH2), 1.45 (t, J=7.0 Hz, 3H, CH3), 1.66-1.70 (m, 1H, c-CH), 2.98 (s, 3H, SO2CH3), 3.64 (dd, J=3.8, 14 Hz, 1H, CH2), 4.10 (q, J=6.8 Hz, 2H, OCH2), 4.33 (dd, J=10, 14 Hz, 1H, CH2), 4.37 (dd, J=5, 50 Hz, 2H, CH2N), 5.69-5.74 (m, 1H, NCH), 6.57 (t, JH-F=75 Hz, 1H, CF2H), 6.94-7.04 (m, 3H, Ar), 7.18 (d, J=7.5 Hz, 1H, Ar), 7.47 (t, J=7.5 Hz, 1H, Ar), 8.45 (d, J=8.5 Hz, 1H, Ar), 10.42 (s, 1H, NH); 13C NMR (CDCl3) δ 9.06, 15.3, 16.9, 42.4, 49.0, 52.5, 56.3, 65.6, 112.4, 113.9, 116.6, 117.5, 117.6, 118.7, 119.9, 120.7, 123.8, 134.5, 136.5, 138.9, 141.1, 141.9, 151.9, 170.9, 173.4; Anal Calcd for C24H26F2N2O6S: C, 56.68; H, 5.15; N, 5.51. Found: C, 56.72; H, 5.15; N, 5.38.

Workup

  1. temperaturethen cooled to room temperature
  2. extractionThe mixture was extracted with EtOAc (50 ml) and water (50 ml)
  3. washThe organic layer was washed with water (50 ml) and brine (50 ml)
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo
  6. customThe resulted oil was purified by silica gel chromatography

Sources & evidence

ORD record
ord-2beb990dd9724131b07b53cfa06b905d
Source dataset
uspto-grants-2011_02
Patent number
US07893102B2

Reaction notes

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