Diisopropylethylamine → (R)-6-(4-((6-oxo-5,6,6a,7,9,10-hexahydropyrido[3,2-e][1,4]thiazino[4,3-a]pyrazin-3-yl)methyl)piperazin-1-yl)nicotinonitrile

HRID 2097862

Reaktionsgleichung

Reaktionsgleichung von HRID 2097862
O[CH2:2][C:3]1[CH:12]=[N:11][C:10]2[N:9]3[CH2:13][CH2:14][S:15][CH2:16][C@H:8]3[C:7](=[O:17])[NH:6][C:5]=2[CH:4]=1.[I-].C(C[P+](C)(C)C)#N.C(N(C(C)C)C(C)C)C.[N:35]1([C:41]2[CH:48]=[CH:47][C:44]([C:45]#[N:46])=[CH:43][N:42]=2)[CH2:40][CH2:39][NH:38][CH2:37][CH2:36]1>C(#N)CC>[O:17]=[C:7]1[NH:6][C:5]2[CH:4]=[C:3]([CH2:2][N:38]3[CH2:39][CH2:40][N:35]([C:41]4[CH:48]=[CH:47][C:44]([C:45]#[N:46])=[CH:43][N:42]=4)[CH2:36][CH2:37]3)[CH:12]=[N:11][C:10]=2[N:9]2[CH2:13][CH2:14][S:15][CH2:16][C@@H:8]12

Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 27371846-(Piperazin-1-yl)pyridine-3-carbonitrileHCID 10514344(Cyanomethyl)trimethylphosphanium iodideHCID 58324367(R)-3-(hydroxymethyl)-6a,7,9,10-tetrahydropyrido[3,2-e][1,4]thiazino[4,3-a]pyrazin-6(5H)-one

Produkt 1

HCID 58324385(R)-6-(4-((6-oxo-5,6,6a,7,9,10-hexahydropyrido[3,2-e][1,4]thiazino[4,3-a]pyrazin-3-yl)methyl)piperazin-1-yl)nicotinonitrileAusbeute 40,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 7854PropionitrileLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

(R)-3-(hydroxymethyl)-6a,7,9,10-tetrahydropyrido[3,2-e][1,4]thiazino[4,3-a]pyrazin-6(5H)-one (80.0 mg, 0.318 mmol) was suspended in propionitrile (0.8 mL) and (cyanomethyl)trimethylphosphonium iodide (93.0 mg, 0.382 mmol) was added followed by N-ethyl-N-isopropylpropan-2-amine (167 ul, 0.955 mmol). To the stirred mixture was then added 6-(piperazin-1-yl)nicotinonitrile (59.9 mg, 0.318 mmol). The reaction was heated to 90° C. with stirring for 16 h. The reaction was cooled to room temperature and left to sit 48 h. The precipitate was filtered off, washed with ethanol (5 mL) and dried in vacuum to afford the title compound (53.9 mg, 40.2%) as a white solid. 1H NMR (CHLOROFORM-d) δ (ppm): 8.41 (d, J=1.8 Hz, 1H), 7.78 (d, J=1.8 Hz, 2H), 7.62 (dd, J=8.8, 2.3 Hz, 1H), 6.95 (br. s., 1H), 6.60 (d, J=8.8 Hz, 1H), 5.06 (dt, J=13.6, 2.8 Hz, 1H), 4.43 (dd, J=10.4, 3.3 Hz, 1H), 3.70 (br. s., 4H), 3.45 (br. s., 2H), 3.15 (td, J=12.9, 2.3 Hz, 1H), 3.00 (td, J=12.8, 2.8 Hz, 1H), 2.78-2.94 (m, 2H), 2.54 (br. s., 4H), 2.40 (dd, J=13.6, 1.5 Hz, 1H). [M+H] calc'd for C, 21; H, 23; N, 7; OS, 422. found, 422.

Aufarbeitung

  1. temperatureThe reaction was cooled to room temperature
  2. waitleft
  3. waitto sit 48 h
  4. filtrationThe precipitate was filtered off
  5. washwashed with ethanol (5 mL)
  6. customdried in vacuum

Quellen und Nachweise

ORD-Eintrag
ord-fbbd544ae25441f3a8535ea46aa962ac
Quelldatensatz
uspto-grants-2013_05
Patentnummer
US08450323B2

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