4-[2-(2-Ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine-8-carbonyl]piperidine-1-carboxylic acid tert-butyl ester → HCID 59605574, compound

HRID 1922850

Reaction equation

HRID 1922850 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]([C:16]2[N:17]([CH3:42])[C:18]3[C:23]([N:24]=2)=[C:22]([N:25]2[CH2:30][CH2:29][O:28][CH2:27][CH2:26]2)[N:21]=[C:20]([N:31]2[C:35]4[CH:36]=[CH:37][CH:38]=[CH:39][C:34]=4[N:33]=[C:32]2[CH2:40][CH3:41])[N:19]=3)=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:43][Mg]Br>C1COCC1>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][CH:11]([C:14]([C:16]2[N:17]([CH3:42])[C:18]3[C:23]([N:24]=2)=[C:22]([N:25]2[CH2:26][CH2:27][O:28][CH2:29][CH2:30]2)[N:21]=[C:20]([N:31]2[C:35]4[CH:36]=[CH:37][CH:38]=[CH:39][C:34]=4[N:33]=[C:32]2[CH2:40][CH3:41])[N:19]=3)([OH:15])[CH3:43])[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

4

Reactant 2

HCID 596054014-[2-(2-Ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine-8-carbonyl]piperidine-1-carboxylic acid tert-butyl esterHCID 178418573HCID 178418573, compound2×

Product 1

HCID 59605574HCID 59605574, compoundYield 57%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 4-[2-(2-ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine-8-carbonyl]piperidine-1-carboxylic acid tert-butyl ester (177 mg, 0.31 mmol) in THF (3 mL) at 0° C. was added methylmagnesium bromide (130 μL, 0.37 mmol, 3M solution in Et2O) and the resulting mixture stirred for 1 h before further methylmagnesium bromide (130 μL, 0.37 mmol) was added. The resulting mixture was warmed to r.t. and stirred for 16 h then concentrated in vacuo. The resulting residue was purified by column chromatography (Si—PCC, MeOH:EtOAc, 0-10%) affording the title compound as a clear oil (104 mg, 57%). LCMS (method A): RT 3.09 min [M+H]+ 591.2

Workup

  1. additionwas added
  2. concentrationthen concentrated in vacuo
  3. customThe resulting residue was purified by column chromatography (Si—PCC, MeOH:EtOAc, 0-10%)

Sources & evidence

ORD record
ord-84a78f0d4cce4863ac93043e0ca7de6a
Source dataset
uspto-grants-2012_05
Patent number
US08173650B2

Linked notes

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