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

HRID 1923057Notes

Reaction equation

HRID 1923057 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.[NH:30]1[CH2:33][CH:32]([N:34]2[CH2:39][CH2:38][O:37][CH2:36][CH2:35]2)[CH2:31]1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.CCOC(C)=O>[CH2:27]([C:19]1[N:18]([C:7]2[N:6]=[C:5]3[C:10]([N:11]=[C:3]([CH2:2][N:30]4[CH2:33][CH:32]([N:34]5[CH2:39][CH2:38][O:37][CH2:36][CH2:35]5)[CH2:31]4)[N:4]3[CH3:29])=[C:9]([N:12]3[CH2:17][CH2:16][O:15][CH2:14][CH2:13]3)[N:8]=2)[C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][C:21]=2[N:20]=1)[CH3:28]

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 134019734-(Azetidin-3-yl)morpholineHCID 59605249HCID 59605249, compound

Product 1

HCID 596058774-(1-((2-(2-ethyl-1H-benzo[d]imidazol-1-yl)-9-methyl-6-morpholino-9H-purin-8-yl)methyl)azetidin-3-yl)morpholineYield 11%

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 4-azetidin-3-ylmorpholine (44 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 resulting residue was purified by column chromatography (Si—PCC, MeOH:DCM, 0-5%). The resulting residue was further purified by Isolute® SCX-2 cartridge which was washed with MeOH/DCM and the product eluted with 2M NH3/MeOH, followed by reverse phase HPLC (Phenomenex Luna C18, 20 mM Et3N in water on a gradient of 20 mM Et3N in acetonitrile 95:5 to 2:98) to afford 309 as a white solid (14 mg, 11%). LCMS (Method G): RT 5.74 min, [M+H]+ 518.3. 1H NMR (CDCl3, 400 MHz): δ 8.02-7.98 (m, 1 H); 7.77-7.73 (m, 1 H); 7.27-7.23 (m, 2 H); 4.35 (m, 4 H); 3.89-3.82 (m, 6 H); 3.83 (s, 3 H); 3.72 (m, 4 H); 3.56 (m, 2H); 3.34 (q, J=7.5 Hz, 2 H); 3.15-3.03 (m, 3 H); 2.34 (m, 4 H) and 1.44 (t, J=7.5 Hz, 3 H)

Workup

  1. washwashed with H2O (×4)
  2. dry with materialthen dried (Na2SO4)
  3. concentrationconcentrated in vacuo
  4. customThe resulting residue was purified by column chromatography (Si—PCC, MeOH:DCM, 0-5%)
  5. customThe resulting residue was further purified by Isolute® SCX-2 cartridge which
  6. washwas washed with MeOH/DCM
  7. washthe product eluted with 2M NH3/MeOH

Sources & evidence

ORD record
ord-d7c15b598bf3461b91914a8c659d5a87
Source dataset
uspto-grants-2012_05
Patent number
US08173650B2

Reaction notes

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