Diisopropylethylamine → 6-(4-((6-Oxo-5,6,6a,7,9,10-hexahydro-[1,4]oxazino[4,3-a]pyrido[3,2-e]pyrazin-3-yl)methyl)piperazin-1-yl)nicotinonitrile

HRID 2077924

Reaktionsgleichung

Reaktionsgleichung von HRID 2077924
O[CH2:2][C:3]1[CH:12]=[N:11][C:10]2[N:9]3[CH2:13][CH2:14][O:15][CH2:16][CH: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][O:15][CH2:16][CH:8]12

Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 27371846-(Piperazin-1-yl)pyridine-3-carbonitrileHCID 10514344(Cyanomethyl)trimethylphosphanium iodideHCID 583243813-(hydroxymethyl)-6a,7,9,10-tetrahydro-[1,4]oxazino[4,3-a]pyrido[3,2-e]pyrazin-6(5H)-one

Produkt 1

HCID 468645206-(4-((6-Oxo-5,6,6a,7,9,10-hexahydro-[1,4]oxazino[4,3-a]pyrido[3,2-e]pyrazin-3-yl)methyl)piperazin-1-yl)nicotinonitrileAusbeute 60,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 7854PropionitrileLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

3-(hydroxymethyl)-6a,7,9,10-tetrahydro-[1,4]oxazino[4,3-a]pyrido[3,2-e]pyrazin-6(5H)-one (70.0 mg, 0.298 mmol) was suspended in propionitrile (0.74 mL) and (cyanomethyl)trimethylphosphonium iodide (87.0 mg, 0.357 mmol) was added followed by N-ethyl-N-isopropylpropan-2-amine (115 ul, 0.893 mmol). To the stirred mixture was then added 6-(piperazin-1-yl)nicotinonitrile (56.0 mg, 0.298 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 methanol (5 mL) and dried in vacuum to afford the title compound (72.5 mg, 60.1%) as a white solid. 1H NMR(CHLOROFORM-d) δ: 8.41 (d, J=1.8 Hz, 1H), 8.20 (br. s., 1H), 7.80 (d, J=2.0 Hz, 1H), 7.61 (dd, J=9.0, 2.4 Hz, 1H), 6.99 (br. s., 1H), 6.59 (d, J=9.1 Hz, 1H), 4.42 (dd, J=11.5, 3.7 Hz, 1H), 4.26 (dd, J=13.3, 1.6 Hz, 1H), 3.95-4.12 (m, 2H), 3.58-3.80 (m, 6H), 3.45 (s, 2H), 2.92-3.08 (m, 1H), 2.53 (br. s., 4H). [M+H] calc'd for C21H23N7O2, 406; found, 406.

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 methanol (5 mL)
  6. customdried in vacuum

Quellen und Nachweise

ORD-Eintrag
ord-fb8229237b194e05b048c6183cd6aaf8
Quelldatensatz
uspto-grants-2011_04
Patentnummer
US07928105B2

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