Diisopropylethylamine → HCID 46864647, compound

HRID 2077968Notes

Reaction equation

HRID 2077968 reaction equation
O[CH2:2][C:3]1[CH:12]=[N:11][C:10]2[N:9]3[CH2:13][CH2:14][CH2:15][C@H:8]3[C:7](=[O:16])[NH:6][C:5]=2[CH:4]=1.Cl.[CH2:18]([NH:20][C:21](=[O:35])[C:22]1[CH:27]=[CH:26][C:25]([N:28]2[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]2)=[C:24]([F:34])[CH:23]=1)[CH3:19].[I-].C(C[P+](C)(C)C)#N.C(N(CC)C(C)C)(C)C>C(#N)CC>[CH2:18]([NH:20][C:21](=[O:35])[C:22]1[CH:27]=[CH:26][C:25]([N:28]2[CH2:33][CH2:32][N:31]([CH2:2][C:3]3[CH:12]=[N:11][C:10]4[N:9]5[CH2:13][CH2:14][CH2:15][C@H:8]5[C:7](=[O:16])[NH:6][C:5]=4[CH:4]=3)[CH2:30][CH2:29]2)=[C:24]([F:34])[CH:23]=1)[CH3:19]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 10514344(Cyanomethyl)trimethylphosphanium iodideHCID 58324378(S)-3-(hydroxymethyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-oneHCID 66774907N-ethyl-3-fluoro-4-(piperazin-1-yl)benzamide hydrochloride

Product 1

HCID 46864647HCID 46864647, compoundYield 39.9%

Reagents, catalysts & solvents 1

HCID 7854PropionitrileSolvent

Conditions

Temperature
90 °C

Procedure

(S)-3-(hydroxymethyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-one (100 mg, 0.456 mmol), N-ethyl-3-fluoro-4-(piperazin-1-yl)benzamide hydrochloride (131 mg, 0.456 mmol), (cyanomethyl)trimethylphosphonium iodide (166 mg, 0.684 mmol) and N,N-diisopropylethylamine (0.398 ml, 2.281 mmol) were suspended in propiononitrile (Volume: 1.370 ml) and heated in a closed vial at 90° C. for 4 h. The reaction mixture became a dark brown solution. It was cooled to room temperature, concentrated in vacuo, dissolved in DMSO (2 mL) and purified using HPLC (basic, 10-95% ACN in water). The fractions were concentrated in vacuo and the resulting solid was recrystallized from water-methanol (5:1, 6 mL) and dried in vacuum to afford (S)—N-ethyl-3-fluoro-4-(4-((6-oxo-5,6,6a,7,8,9-hexahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-3-yl)methyl)piperazin-1-yl)benzamide (82.3 mg, 0.182 mmol, 39.9% yield) as a yellow-green solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 0.98-1.08 (m, 3H) 1.77-1.96 (m, 3H) 2.04-2.18 (m, 1H) 2.35-2.43 (m, 4H) 2.93-3.07 (m, 4H) 3.13-3.23 (m, 2H) 3.28-3.38 (m, 3H) 3.47-3.57 (m, 1H) 3.88-3.95 (m, 1H) 6.92 (d, J=2.02 Hz, 1H) 6.97 (t, J=8.84 Hz, 1H) 7.47-7.57 (m, 3H) 8.28 (t, J=5.56 Hz, 1H) 10.37 (s, 1H). [M+H] calc'd for C24H29FN6O2, 453; found, 453.

Workup

  1. temperatureIt was cooled to room temperature
  2. concentrationconcentrated in vacuo
  3. dissolutiondissolved in DMSO (2 mL)
  4. custompurified
  5. concentrationThe fractions were concentrated in vacuo
  6. customthe resulting solid was recrystallized from water-methanol (5:1, 6 mL)
  7. customdried in vacuum

Sources & evidence

ORD record
ord-8b6d5d7b5e294969b24c13be535d421c
Source dataset
uspto-grants-2011_04
Patent number
US07928105B2

Reaction notes

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