Triethylamine → 3-(3,4-Bis-difluoromethoxy-phenyl)-3-[4-chloro-7-(cyclopropanecarbonyl-amino)-1-oxo-1,3-dihydro-isoindol-2-yl]-propionic acid methyl ester

HRID 1694279Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1694279
[CH3:1][O:2][C:3](=[O:21])[CH2:4][CH:5]([NH2:20])[C:6]1[CH:11]=[CH:10][C:9]([O:12][CH:13]([F:15])[F:14])=[C:8]([O:16][CH:17]([F:19])[F:18])[CH:7]=1.C(N(CC)CC)C.C[O:30][C:31](=O)[C:32]1[C:37]([NH:38][C:39]([CH:41]2[CH2:43][CH2:42]2)=[O:40])=[CH:36][CH:35]=[C:34]([Cl:44])[C:33]=1[CH2:45]Br>CN(C=O)C>[CH3:1][O:2][C:3](=[O:21])[CH2:4][CH:5]([C:6]1[CH:11]=[CH:10][C:9]([O:12][CH:13]([F:15])[F:14])=[C:8]([O:16][CH:17]([F:18])[F:19])[CH:7]=1)[N:20]1[CH2:45][C:33]2[C:32](=[C:37]([NH:38][C:39]([CH:41]3[CH2:43][CH2:42]3)=[O:40])[CH:36]=[CH:35][C:34]=2[Cl:44])[C:31]1=[O:30]

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 669200082-Bromomethyl-3-chloro-6-(cyclopropanecarbonyl-amino)-benzoic acid methyl esterHCID 669203783-Amino-3-(3,4-bis-difluoromethoxy-phenyl)-propionic acid methyl ester

Produkt 1

HCID 103701873-(3,4-Bis-difluoromethoxy-phenyl)-3-[4-chloro-7-(cyclopropanecarbonyl-amino)-1-oxo-1,3-dihydro-isoindol-2-yl]-propionic acid methyl esterAusbeute 17,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

To a solution of 3-amino-3-(3,4-bis-difluoromethoxy-phenyl)-propionic acid methyl ester (50 mg, 0.16 mmol) and triethyl amine (0.09 ml, 3.1 mmol) in DMF (2 ml) was added 2-bromomethyl-3-chloro-6-(cyclopropanecarbonyl-amino)-benzoic acid methyl ester (67 mg, 0.19 mmol). The mixture was heated at 90° C. under nitrogen atmosphere overnight. The solvent was removed in vacuo. The resulted oil was extracted with ethyl acetate (50 ml) and 1N HCl (50 ml). The organic layer was washed with water (30 ml), brine (30 ml) and dried over magnesium sulfate. The solvent was removed in vacuo and the resulted oil was purified by silica gel chromatography (hexane:ethyl acetate=2:1) to give 3-(3,4-bis-difluoromethoxy-phenyl)-3-[4-chloro-7-(cyclopropanecarbonyl-amino)-1-oxo-1,3-dihydro-isoindol-2-yl]-propionic acid methyl ester as a off-white solid (15 mg, 17%). mp, 175-177° C.; 1HNMR (CDCl3): δ 0.88-0.94 (m, 2H, cyclopropyl ring CH2), 1.07-1.13 (m, 2H, cyclopropyl ring CH2), 1.65-1.68 (m, 1H, cyclopropyl ring CH), 3.14 (dd, J=6, 15 Hz, 1H, CHHCO), 3.28 (dd, J=10, 15 Hz, 1H, CHHCO), 3.70 (s, 3H, OCH3), 4.13 (d, J=17 Hz, 1H, CHHN), 4.36 (d, J=17 Hz, 1H, CHHN), 5.79-5.85 (m, 1H, CHN). 6.23 (t, JH-F=75 Hz, 1H, OCF2H), 6.26 (t, JH-F=75 Hz, 1H, OCF2H), 7.28-7.41 (m, 4H, Ar), 8.45 (d, J=9 Hz, 1H. Ar), 10.38 (s, 1H, NHCO); 13C NMR (CDCl3): 8.45, 15.25, 16.16, 36.46, 46.34, 51.62, 52.31, 65.38, 111.38, 111.42, 115.57, 115.61, 118.64, 119.76, 119.80, 121.76, 121.81, 122.77, 125.45, 133.14, 136.89, 137.03, 138.86, 142.29, 142.21, 168.79, 170.20, 172.73; Anal. Calcd. for C24H21ClF4N2O6: C, 52.90; H, 3.88; N, 5.14. Found: C, 52.78; H, 3.80; N, 5.01;

Aufarbeitung

  1. customThe solvent was removed in vacuo
  2. extractionThe resulted oil was extracted with ethyl acetate (50 ml) and 1N HCl (50 ml)
  3. washThe organic layer was washed with water (30 ml), brine (30 ml)
  4. dry with materialdried over magnesium sulfate
  5. customThe solvent was removed in vacuo
  6. customthe resulted oil was purified by silica gel chromatography (hexane:ethyl acetate=2:1)

Quellen und Nachweise

ORD-Eintrag
ord-206e32e1f9cb44fea21a3234bb1f97d9
Quelldatensatz
uspto-grants-2012_04
Patentnummer
US08158672B2

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