Diisopropylethylamine → (4-(2-(5-amino-2-(furan-2-yl)-7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-7-yl)ethyl)piperazin-1-yl)(2,4-difluorophenyl)methanone

HRID 639466Notes

Reaction equation

HRID 639466 reaction equation
CS(O[CH2:6][CH2:7][N:8]1[C:16]2[N:15]=[C:14]([NH2:17])[N:13]3[N:18]=[C:19]([C:21]4[O:22][CH:23]=[CH:24][CH:25]=4)[N:20]=[C:12]3[C:11]=2[CH:10]=[CH:9]1)(=O)=O.Cl.[F:27][C:28]1[CH:33]=[C:32]([F:34])[CH:31]=[CH:30][C:29]=1[C:35]([N:37]1[CH2:42][CH2:41][NH:40][CH2:39][CH2:38]1)=[O:36].CCN(C(C)C)C(C)C>CN(C=O)C>[NH2:17][C:14]1[N:13]2[N:18]=[C:19]([C:21]3[O:22][CH:23]=[CH:24][CH:25]=3)[N:20]=[C:12]2[C:11]2[CH:10]=[CH:9][N:8]([CH2:7][CH2:6][N:40]3[CH2:39][CH2:38][N:37]([C:35]([C:29]4[CH:30]=[CH:31][C:32]([F:34])=[CH:33][C:28]=4[F:27])=[O:36])[CH2:42][CH2:41]3)[C:16]=2[N:15]=1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 470034071-(2,4-Difluorobenzoyl)piperazine hydrochlorideHCID 866234642-{5-amino-2-(furan-2-yl)-7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-7-yl}ethyl methanesulfonate

Product 1

HCID 24944546(4-(2-(5-amino-2-(furan-2-yl)-7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-7-yl)ethyl)piperazin-1-yl)(2,4-difluorophenyl)methanone

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of the title D compound of Example 1, 2-{5-amino-2-(furan-2-yl)-7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-7-yl}ethyl methanesulfonate (0.06 g, 0.165 mmol) in dry DMF (5 mL), the title B compound, (2,4-difluorophenyl)piperazin-1-yl-methanone hydrochloride (0.33 mmol) and 0.06 mL of DIEA are added, and the solution is stirred at 100° C. for 5 h. The reaction mixture is cooled to RT, and the solvent is removed under reduced pressure. To the residue, acetonitrile is added and the solution is stirred at 60° C. for 0.5 h. The solution is then cooled to RT, and the resulting solids are collected by filtration to give (4-(2-(5-amino-2-(furan-2-yl)-7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-7-yl)ethyl)piperazin-1-yl)(2,4-difluorophenyl)methanone: LC/MS (M+1=493.1). 1H NMR (DMSO-d6, 400 MHz) δ 2.42 (m, 2H), 2.72 (t, 2H, J=6.0 Hz), 3.17 (m, 2H), 3.34 (m, 2H), 3.60 (m, 2H), 4.25 (t, 2H, J=6.0 Hz), 6.59 (d, 1H, J=3.2 Hz), 6.72 (m, 1H), 7.18 (m, 3H), 7.38 (m, 1H), 7.46 (m, 1H), 7.54 (brs, 2H, NH2), 7.93 (s, 1H). Anal. calculated for (C24H22F2N8O2+0.5H2O): C, 57.48; H, 4.62; F, 7.58; N, 22.34; 0, 7.98. Found C, 57.40; H, 4.46; N, 22.29.

Workup

  1. temperatureThe reaction mixture is cooled to RT
  2. customthe solvent is removed under reduced pressure
  3. additionTo the residue, acetonitrile is added
  4. stirringthe solution is stirred at 60° C. for 0.5 h
  5. temperatureThe solution is then cooled to RT
  6. filtrationthe resulting solids are collected by filtration

Sources & evidence

ORD record
ord-916d223ef1ad470d8bfdd741b55376d7
Source dataset
uspto-grants-2010_04
Patent number
US07691869B2

Reaction notes

Loading…