1-(2-Hydroxyethyl)piperazine → HCID 58514770, compound

HRID 1404788Notes

Reaction equation

HRID 1404788 reaction equation
[N:1]1[C:10]2[C:5](=[CH:6][C:7]([CH2:11][N:12]3[C:16]4=[N:17][C:18]([C:21]5[CH:29]=[CH:28][C:24]([C:25](O)=[O:26])=[CH:23][CH:22]=5)=[CH:19][CH:20]=[C:15]4[N:14]=[N:13]3)=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.C(N(CC)CC)C.[N:59]1([CH2:65][CH2:66][OH:67])[CH2:64][CH2:63][NH:62][CH2:61][CH2:60]1>CN(C=O)C.O>[OH:67][CH2:66][CH2:65][N:59]1[CH2:64][CH2:63][N:62]([C:25]([C:24]2[CH:23]=[CH:22][C:21]([C:18]3[N:17]=[C:16]4[N:12]([CH2:11][C:7]5[CH:6]=[C:5]6[C:10](=[CH:9][CH:8]=5)[N:1]=[CH:2][CH:3]=[CH:4]6)[N:13]=[N:14][C:15]4=[CH:20][CH:19]=3)=[CH:29][CH:28]=2)=[O:26])[CH2:61][CH2:60]1

Participants

8

Reactant 5

HCID 76771-(2-Hydroxyethyl)piperazineHCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 54670137HCID 54670137, compound

Product 1

HCID 58514770HCID 58514770, compoundYield 14.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of example 8 (0.150 g, 0.393 mmol) in DMF (1 ml), HOBT (0.063 g, 0.471 mmol), EDC-HCl (0.187 g, 0.983 mmol) and triethylamine (0.16 ml, 1.17 mmol) were added and stirred for 5 min. (2-(piperazin-1-yl)ethanol (0.046 g, 0.353 mmol) was added at RT and the reaction mixture was stirred for 12 h. To the reaction mixture water was added and extracted with ethyl acetate, dried over sodium sulphate and concentrated under reduced pressure. The crude product was purified by column chromatography with methanol:dichloromethane to afford the title compound as a yellow solid (0.025 g, 13%). M.P.: 158-160° C. 1H-NMR (δ ppm, DMSO-d6, 400 MHz): 8.88 (d, J=2.7 Hz, 1H), 8.67 (d, J=8.7 Hz, 1H), 8.38 (d, J=7.8 Hz, 1H), 8.31 (d, J=8.2 Hz, 2H), 8.17 (d, J=8.8 Hz, 1H), 8.02 (t, J=4.2 Hz, 2H), 7.83 (dd, J=8.7, 1.6 Hz, 1H), 7.56 (d, J=8.4 Hz, 2H), 7.52 (dd, J=8.3, 4.2 Hz, 1H), 6.24 (s, 2H), 4.44 (t, J=5.3 Hz, 1H), 3.62 (m, 2H), 3.51 (q, J=6.0 Hz, 2H), 2.42 (m, 8H).

Workup

  1. additionwas added at RT
  2. extractionextracted with ethyl acetate
  3. dry with materialdried over sodium sulphate
  4. concentrationconcentrated under reduced pressure
  5. customThe crude product was purified by column chromatography with methanol

Sources & evidence

ORD record
ord-e09fbddd02e94df2a8f5af642db60496
Source dataset
uspto-grants-2014_12
Patent number
US08912331B2

Reaction notes

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