2-tert-Butyl-4-chloro-5-phenylisothiazol-3(2H)-one 1,1-dioxide → 2-tert-Butyl-4-{[1-(6-methoxypyridazin-3-yl)piperidin-4-yl]amino}-5-phenylisothiazol-3(2H)-one 1,1-dioxide

HRID 2239688Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2239688
[C:1]([N:5]1[C:9](=[O:10])[C:8](Cl)=[C:7]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[S:6]1(=[O:19])=[O:18])([CH3:4])([CH3:3])[CH3:2].Cl.Cl.[CH3:22][O:23][C:24]1[N:29]=[N:28][C:27]([N:30]2[CH2:35][CH2:34][CH:33]([NH2:36])[CH2:32][CH2:31]2)=[CH:26][CH:25]=1>CN(C=O)C.O>[C:1]([N:5]1[C:9](=[O:10])[C:8]([NH:36][CH:33]2[CH2:34][CH2:35][N:30]([C:27]3[N:28]=[N:29][C:24]([O:23][CH3:22])=[CH:25][CH:26]=3)[CH2:31][CH2:32]2)=[C:7]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[S:6]1(=[O:19])=[O:18])([CH3:4])([CH3:3])[CH3:2]

Komponenten

5

Edukt 2

HCID 672426272-tert-Butyl-4-chloro-5-phenylisothiazol-3(2H)-one 1,1-dioxideHCID 672446091-(6-Methoxypyridazin-3-yl)piperidin-4-amine dihydrochloride

Produkt 1

HCID 115618882-tert-Butyl-4-{[1-(6-methoxypyridazin-3-yl)piperidin-4-yl]amino}-5-phenylisothiazol-3(2H)-one 1,1-dioxideAusbeute 49,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

2-tert-Butyl-4-chloro-5-phenylisothiazol-3(2H)-one 1,1-dioxide (0.300 g, 1.00 mmol), 1-(6-methoxypyridazin-3-yl)piperidin-4-amine dihydrochloride (0.349 g, 1.24 mmol) and TEA (0.405 g, 4.00 mmol) was dissolved in dry DMF (10 ml) and heated in a microwave reactor at 120° C. for 30 mins. The reaction mixture was diluted with water (200 ml) and extracted with EtOAc (200 ml). The organic phase was dried over MgSO4, filtered and evaporated. The residue was purified by silica gel column chromatography using a 55:45 mixture of heptane and EtOAc as eluant, to give the title compound (0.232 g, 49%). 1H NMR (500 MHz, CDCl3): δ 7.54-7.49 (m, 2H), 7.46-7.41 (m, 3H), 6.92 (d, 1H), 6.79 (d, 1H), 5.2 (d, 1H), 4.00 (s, 3H), 3.93-3.87 (m, 2H), 3.17-3.08 (m, 1H), 2.53-2.45 (m, 2H), 1.77-1.71 (m, 2H), 1.72 (s, 9H), 1.44-1.35 (m, 2H); 13C NMR (125 MHz, CDCl3): δ 160.1, 159.6, 157.3, 133.8, 131.6, 129.9, 128.7, 125, 119.4, 119.1, 107, 61.6, 54.3, 50.1, 45.1, 31.6, 27.6; Mass Spectrum: M−H+ 472.

Aufarbeitung

  1. extractionextracted with EtOAc (200 ml)
  2. dry with materialThe organic phase was dried over MgSO4
  3. filtrationfiltered
  4. customevaporated
  5. customThe residue was purified by silica gel column chromatography
  6. additiona 55:45 mixture of heptane and EtOAc as eluant

Quellen und Nachweise

ORD-Eintrag
ord-242de17a83f6485eb290c0c9f53370e3
Quelldatensatz
uspto-grants-2010_05
Patentnummer
US07723333B2

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