Acetone → 4-(2-(2-ethyl-1H-benzo[d]imidazol-1-yl)-8-(1-isopropyl-3-methoxyazetidin-3-yl)-9-methyl-9H-purin-6-yl)morpholine

HRID 1923333Notes

Reaction equation

HRID 1923333 reaction equation
[CH2:1]([C:3]1[N:7]([C:8]2[N:16]=[C:15]3[C:11]([N:12]=[C:13]([C:18]4([O:22][CH3:23])[CH2:21][NH:20][CH2:19]4)[N:14]3[CH3:17])=[C:10]([N:24]3[CH2:29][CH2:28][O:27][CH2:26][CH2:25]3)[N:9]=2)[C:6]2[CH:30]=[CH:31][CH:32]=[CH:33][C:5]=2[N:4]=1)[CH3:2].[CH3:34][C:35](=O)[CH3:36]>CO.[Pd]>[CH2:1]([C:3]1[N:7]([C:8]2[N:16]=[C:15]3[C:11]([N:12]=[C:13]([C:18]4([O:22][CH3:23])[CH2:21][N:20]([CH:35]([CH3:36])[CH3:34])[CH2:19]4)[N:14]3[CH3:17])=[C:10]([N:24]3[CH2:29][CH2:28][O:27][CH2:26][CH2:25]3)[N:9]=2)[C:6]2[CH:30]=[CH:31][CH:32]=[CH:33][C:5]=2[N:4]=1)[CH3:2]

Participants

5

Reactant 2

HCID 180AcetoneHCID 596058342-(2-Ethylbenzoimidazol-1-yl)-8-(3-methoxyazetidin-3-yl)-9-methyl-6-morpholin-4-yl-9H-purine

Product 1

HCID 596053024-(2-(2-ethyl-1H-benzo[d]imidazol-1-yl)-8-(1-isopropyl-3-methoxyazetidin-3-yl)-9-methyl-9H-purin-6-yl)morpholine

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent2×

Procedure

To a solution of 2-(2-ethylbenzoimidazol-1-yl)-8-(3-methoxyazetidin-3-yl)-9-methyl-6-morpholin-4-yl-9H-purine (553 mg, 1.23 mmol) and propan-2-one (1.0 mL) in MeOH (20 mL) was added 10% Pd/C (30 mg) as a slurry in MeOH (0.5 mL) and the resulting mixture stirred under an atmosphere of H2 for 1.5 h at r.t. The reaction mixture was filtered through Celite®, washing with MeOH, and the filtrate concentrated in vacuo. The resulting residue was purified by column chromatography (Si-PCC, 2M NH3/MeOH:EtOAc, 0-12%) then (C18, MeOH:H2O, 5-25%). The resulting residue was loaded onto an Isolute® SCX-2 cartridge which was washed with DCM and MeOH and the product eluted with 2M NH3/MeOH. The resulting colourless foam was recrystallised from iPrOAc and pentane affording 739 as colourless crystals (166 mg, 28%). LCMS (method I): RT 2.48 min, [M+H]+ 491.3. 1H NMR (CDCl3, 400 MHz): δ 8.03-8.02 (1 H, m), 7.64-7.63 (1 H, m), 7.29-7.28 (2 H, m), 4.40 (4 H, s), 4.05 (2 H, d, J=8.89 Hz), 3.86 (4 H, s), 3.81 (3 H, s), 3.57-3.55 (2 H, m), 3.31-3.30 (2 H, m), 3.10 (3 H, s), 2.54-2.53 (1 H, m), 1.40 (3 H, t, J=7.50 Hz), 1.02 (6 H, d, J=6.24 Hz)

Workup

  1. filtrationThe reaction mixture was filtered through Celite®
  2. washwashing with MeOH
  3. concentrationthe filtrate concentrated in vacuo
  4. customThe resulting residue was purified by column chromatography (Si-PCC, 2M NH3/MeOH:EtOAc, 0-12%)
  5. washwas washed with DCM and MeOH
  6. washthe product eluted with 2M NH3/MeOH
  7. customThe resulting colourless foam was recrystallised from iPrOAc and pentane affording 739 as colourless crystals (166 mg, 28%)
  8. customRT 2.48 min, [M+H]+ 491.3

Sources & evidence

ORD record
ord-2db2b79fb4ed479e944aa45f7430eb68
Source dataset
uspto-grants-2012_05
Patent number
US08173650B2

Reaction notes

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