Dimethyl Sulfoxide → 4-[3-Methyl-1-(7-methyl-quinoline-3-ylamino)-butyl]-benzoic acid ethyl ester

HRID 1424276Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1424276
[NH2:1][CH:2]([C:6]1[CH:16]=[CH:15][C:9]([C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:8][CH:7]=1)[CH2:3][CH2:4][CH3:5].Br[C:18]1[CH:19]=[N:20][C:21]2[C:26]([CH:27]=1)=[CH:25][CH:24]=[C:23]([CH3:28])[CH:22]=2.[CH3:29]S(C)=O>>[CH2:13]([O:12][C:10](=[O:11])[C:9]1[CH:15]=[CH:16][C:6]([CH:2]([NH:1][C:18]2[CH:19]=[N:20][C:21]3[C:26]([CH:27]=2)=[CH:25][CH:24]=[C:23]([CH3:28])[CH:22]=3)[CH2:3][CH:4]([CH3:29])[CH3:5])=[CH:7][CH:8]=1)[CH3:14]

Komponenten

4

Edukt 3

HCID 679Dimethyl SulfoxideHCID 124656213-Bromo-7-methylquinolineHCID 71243833Ethyl(+/-)-4-(1-aminobutyl)benzoate

Produkt 1

HCID 712393454-[3-Methyl-1-(7-methyl-quinoline-3-ylamino)-butyl]-benzoic acid ethyl esterAusbeute 15 %

Versuchsvorschrift

To a reaction vial with 4-(1-Amino-3-methyl-butyryl)-benzoic acid ethyl ester (2) (440 mg, 1.9 mM) was added DMSO (6.33 mL), 3-bromo-7-methylquinoline (9) (420 mg, 1.9 mM), followed by Cul catalyst (36 mg, 0.19 mM) and CsOAc (726 mg, 3.78 mM). The mixture was purged with argon gas and then the tube was sealed. The reaction mixture was heated to 100° for 48 h. The reaction mixture was cooled, diluted with EtOAc (10 mL), washed with water (3×5 mL), dried (Na2SO4) and concentrated. The crude material was separated by a 40 g silica gel with 0-80% EtOAc in heptane to give a yellow color product (108 mg, 15%). 1H NMR (500 MHz, CDCl3) δ ppm 0.98 (d, J=6.34 Hz, 3H) 1.04 (d, J=6.34 Hz, 3H) 1.39 (t, 3H) 1.61-1.71 (m, 1H) 1.71-1.86 (m, 2H) 2.46 (s, 3H) 4.36 (q, 2H) 4.38-4.43 (m, 1H) 4.47-4.56 (m, 1H) 6.75 (d, J=1.95 Hz, 1H) 7.20 (d, J=8.29 Hz, 1H) 7.36 (d, J=8.05 Hz, 1H) 7.47 (d, J=8.29 Hz, 2H) 7.69 (s, 1H) 8.03 (d, 2H) 8.47 (br. s., 1H). LC-MS: m/z 377.2 (M+1).

Aufarbeitung

  1. customThe mixture was purged with argon gas
  2. customthe tube was sealed
  3. temperatureThe reaction mixture was heated to 100° for 48 h
  4. temperatureThe reaction mixture was cooled
  5. additiondiluted with EtOAc (10 mL)
  6. washwashed with water (3×5 mL)
  7. dry with materialdried (Na2SO4)
  8. concentrationconcentrated
  9. customThe crude material was separated by a 40 g silica gel with 0-80% EtOAc in heptane

Quellen und Nachweise

ORD-Eintrag
ord-674a1149871d4fd1a2ad687bb3c3fc94
Quelldatensatz
uspto-grants-2015_01
Patentnummer
US08927577B2

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