Potassium Carbonate → 4-(8-((3,3-dimethyl-4-(2-(methylsulfonyl)ethyl)piperazin-1-yl)methyl)-2-(2-ethyl-1H-benzo[d]imidazol-1-yl)-9-methyl-9H-purin-6-yl)morpholine

HRID 1945877Notes

Reaction equation

HRID 1945877 reaction equation
Cl[CH2:2][C:3]1[N:4]([CH3:29])[C:5]2[C:10]([N:11]=1)=[C:9]([N:12]1[CH2:17][CH2:16][O:15][CH2:14][CH2:13]1)[N:8]=[C:7]([N:18]1[C:22]3[CH:23]=[CH:24][CH:25]=[CH:26][C:21]=3[N:20]=[C:19]1[CH2:27][CH3:28])[N:6]=2.[CH3:30][S:31]([CH2:34][CH2:35][N:36]1[CH2:41][CH2:40][NH:39][CH2:38][C:37]1([CH3:43])[CH3:42])(=[O:33])=[O:32].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.CCOC(C)=O>[CH3:42][C:37]1([CH3:43])[N:36]([CH2:35][CH2:34][S:31]([CH3:30])(=[O:32])=[O:33])[CH2:41][CH2:40][N:39]([CH2:2][C:3]2[N:4]([CH3:29])[C:5]3[C:10]([N:11]=2)=[C:9]([N:12]2[CH2:17][CH2:16][O:15][CH2:14][CH2:13]2)[N:8]=[C:7]([N:18]2[C:22]4[CH:23]=[CH:24][CH:25]=[CH:26][C:21]=4[N:20]=[C:19]2[CH2:27][CH3:28])[N:6]=3)[CH2:38]1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 59605249HCID 59605249, compoundHCID 596060882,2-Dimethyl-1-(2-(methylsulfonyl)ethyl)piperazine

Product 1

HCID 596057064-(8-((3,3-dimethyl-4-(2-(methylsulfonyl)ethyl)piperazin-1-yl)methyl)-2-(2-ethyl-1H-benzo[d]imidazol-1-yl)-9-methyl-9H-purin-6-yl)morpholineYield 26%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 8-chloromethyl-2-(2-ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine (107 mg, 0.26 mmol) and 1-(2-methanesulfonylethyl)-2,2-dimethylpiperazine (68 mg, 0.31 mmol) in DMF (3 mL) was added K2CO3 (106 mg, 0.77 mmol). The resulting mixture was allowed to stir at room temperature for 16 h. The reaction mixture was dissolved in EtOAc, washed with H2O (×4) then dried (Na2SO4) and concentrated in vacuo. The residue was purified by column chromatography (Si—PCC, MeOH:EtOAc, 0-20%) and (Si—PCC, MeOH:DCM 0-5%). The resulting residue was further purified by reverse phase HPLC (Phenomenex Luna C18, 20 mM Et3N in water on a gradient of 20 mM Et3N in acetonitrile 95:5 to 5:95) to afford 310 as a white solid (40 mg, 26%). LCMS (Method G): RT 6.68 min, [M+H]+ 596.3. 1H NMR (CDCl3, 400 MHz): δ 8.04-7.99 (m, 1 H); 7.77-7.72 (m, 1 H); 7.28-7.23 (m, 2 H); 4.35 (m, 4 H); 3.87 (m, 7 H); 3.69 (s, 2 H); 3.36 (q, J=7.5 Hz, 2 H); 3.11-3.03 (m, 5 H); 2.92 (m, 2 H); 2.62 (m 2 H); 2.51 (m, 2 H); 2.37-2.22 (m, 2 H); 1.45 (t, J=7.5 Hz, 3 H) and 1.09 (s, 6 H)

Workup

  1. washwashed with H2O (×4)
  2. dry with materialthen dried (Na2SO4)
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified by column chromatography (Si—PCC, MeOH:EtOAc, 0-20%) and (Si—PCC, MeOH:DCM 0-5%)
  5. customThe resulting residue was further purified by reverse phase HPLC (Phenomenex Luna C18, 20 mM Et3N in water on a gradient of 20 mM Et3N in acetonitrile 95:5 to 5:95)

Sources & evidence

ORD record
ord-1d7fd022012a46e39b4ba4fb4730c563
Source dataset
uspto-grants-2013_03
Patent number
US08394796B2

Reaction notes

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