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 2097882

Reaktionsgleichung

Reaktionsgleichung von HRID 2097882
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 C, 21; H, 23; N, 7; O, 2, 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-67b4ea7483574d0184fe7a0d1013c84c
Quelldatensatz
uspto-grants-2013_05
Patentnummer
US08450323B2

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