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Ethyl Acetate → 4-(1-(5-Chloropyrimidin-2-yl)piperidin-4-yloxy)-1-(4-(methylsulfonyl)phenyl)-6-oxo-1,6-dihydropyridazine-3-carbonitrile

HRID 386576
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 386576
Cl.[CH3:2][S:3]([C:6]1[CH:11]=[CH:10][C:9]([N:12]2[C:17](=[O:18])[CH:16]=[C:15]([O:19][CH:20]3[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]3)[C:14]([C:26]#[N:27])=[N:13]2)=[CH:8][CH:7]=1)(=[O:5])=[O:4].CCN(C(C)C)C(C)C.[Cl:37][C:38]1[CH:39]=[N:40][C:41](I)=[N:42][CH:43]=1.CCOC(C)=O>CN1C(=O)CCC1>[Cl:37][C:38]1[CH:39]=[N:40][C:41]([N:23]2[CH2:24][CH2:25][CH:20]([O:19][C:15]3[C:14]([C:26]#[N:27])=[N:13][N:12]([C:9]4[CH:8]=[CH:7][C:6]([S:3]([CH3:2])(=[O:5])=[O:4])=[CH:11][CH:10]=4)[C:17](=[O:18])[CH:16]=3)[CH2:21][CH2:22]2)=[N:42][CH:43]=1
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Komponenten

6

Edukt 4

HCID 8857Ethyl AcetateHCID 81531DiisopropylethylamineHCID 299380055-Chloro-2-iodopyrimidineHCID 674455661-(4-(methylsulfonyl)phenyl)-6-oxo-4-(piperidin-4-yloxy)-1,6-dihydropyridazine-3-carbonitrile HCl

Produkt 1

HCID 446211434-(1-(5-Chloropyrimidin-2-yl)piperidin-4-yloxy)-1-(4-(methylsulfonyl)phenyl)-6-oxo-1,6-dihydropyridazine-3-carbonitrile
Ausbeute 75,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 13387N-methyl-2-pyrrolidoneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a stirring solution of 1-(4-(methylsulfonyl)phenyl)-6-oxo-4-(piperidin-4-yloxy)-1,6-dihydropyridazine-3-carbonitrile HCl (124 mg, 0.33 mmol) in NMP (3 mL) at room temperature under argon was added DIPEA (128 mg, 0.99 mmol) and 5-chloro-2-iodopyrimidine (159 mg, 0.66 mmol). The resulting reaction mixture was heated at 100° C. under argon overnight. 15 mL of EtOAc was added to the reaction mixture. The reaction mixture was washed with water (15 mL), and brine (15 mL). Organic phase was dried (MgSO4), filtered and concentrated. The crude product was dissolved in a small amount of DCM (˜3 ml) and loaded onto a 40 g ISCO silica gel column which was eluted with a 20 min gradient from 20% to 100% EtOAc/Hexanes. 121 mg (75%) of 4-(1-(5-chloropyrimidin-2-yl)piperidin-4-yloxy)-1-(4-(methylsulfonyl)phenyl)-6-oxo-1,6-dihydropyridazine-3-carbonitrile was obtained as a tan solid. 1H NMR (400 MHz, CDCl3) δ ppm 1.75-2.27 (m, 4H) 3.08 (s, 3H) 3.66-3.97 (m, 2H) 3.97-4.24 (m, 2H) 4.54-4.95 (m, 1H) 6.34 (s, 1H) 7.84 (d, J=8.79 Hz, 2H) 8.07 (d, J=8.79 Hz, 2H) 8.24 (s, 2H). MS (ESI) 487 (M+H).

Aufarbeitung

  1. customThe resulting reaction mixture
  2. washThe reaction mixture was washed with water (15 mL), and brine (15 mL)
  3. dry with materialOrganic phase was dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. dissolutionThe crude product was dissolved in a small amount of DCM (˜3 ml)
  7. washwas eluted with a 20 min gradient from 20% to 100% EtOAc/Hexanes

Quellen und Nachweise

ORD-Eintrag
ord-ffb0d5d3dcb245dc9d3ea2289bc37e1b
Quelldatensatz
uspto-grants-2013_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08372837B2

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