Substituted piperidines containing a heteroarylamide or heteroarylphenyl moiety
A technology of groups and substituents, applied in the field of pharmaceutical compositions containing such compounds
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Embodiment 1
[0943] 4-Aminomethyl-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-piperidine-4-carboxylic acid (6-chloro-pyridine -3-ylmethyl)-amide
[0944] 1A. tert-butyl 4-(6-chloro-pyridin-3-ylmethylcarbamoyl)-4-cyano-piperidine-1-carboxylate ester
[0945]
[0946] 5-Aminomethyl-2-chloropyridine (1.28 mmol) was added to 4-cyano-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester (250 mg, 0.98 mmol), HATU (486 mg, 1.28 mmol) and Hunig's base (0.86ml, 4.92mmol) in DMF (2.5ml) and stirred at room temperature under argon atmosphere. After stirring for 17 hours, the reaction mixture was partitioned between dichloromethane and water. Then, the organic layer was dried, filtered and evaporated. The crude material can be purified by flash column chromatography on silica gel, eluting with 25% ethyl acetate-petroleum ether, to afford the title compound.
[0947] 1B. 4-Cyano-piperidine-4-carboxylic acid (6-chloro-pyridin-3-ylmethyl)-amide
[0948]
[0949] To a solution of the product ...
Embodiment 2
[0958] 4-Amino-1-(8-oxo-8,9-dihydro-7H-purin-6-yl)-piperidine-4-carboxylic acid (3-benzoxazole -2-yl-phenyl)-amide
[0959] 2A. 4-tert-butoxycarbonylamino-4-(3-benzoxazol-2-yl-phenylcarbamoyl)-piper tert-Butyl pyridine-1-carboxylate
[0960]
[0961] 3-Benzoxazol-2-yl-aniline (1.74 mmol) was added to 4-tert-butoxycarbonylamino-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester (600 mg, 1.74 mmol), HATU (861 mg, 2.26 mmol) and Hunig's base (1.52 ml, 8.71 mmol) in a stirred solution in DMF (5 ml) and stirred at room temperature under an atmosphere of argon. After stirring for 17 hours, the reaction mixture was partitioned between dichloromethane and water. Then, the organic layer was dried, filtered and evaporated. The crude material can be purified by flash column chromatography on silica gel, eluting with 25% ethyl acetate-petroleum ether, to afford the title compound.
[0962] 2B. 4-Amino-piperidine-4-carboxylic acid (3-benzoxazol-2-yl-phenyl)-amide
[09...
Embodiment 3
[0975] 4-Amino-1-(8-oxo-8,9-dihydro-7H-purin-6-yl)-piperidine-4-carboxylic acid [3-(4-methyl-pyridine Pyridine-2-yl)-phenyl]-amide
[0976] 3A. 4-Amino-piperidine-4-carboxylic acid [3-(4-methyl-pyridin-2-yl)-phenyl]-amide
[0977]
[0978] The title compound was prepared according to the procedure described in Examples 2A and 2B, using 3-(4-methyl-pyridin-2-yl)-aniline in place of 3-benzoxazol-2-yl-aniline.
[0979] 3B.4-Amino-1-(8-oxo-8,9-dihydro-7H-purin-6-yl)-piperidine-4-carboxylic acid [3-(4-methanoic acid Base-pyridin-2-yl)-phenyl]-amide
[0980]
[0981] The title compound was prepared according to the procedure described in Examples 2C to 2E. LC-MS m / z445. 1 H NMR (400MHz, Me-d 3 -OD): 8.47 (1H, d), 8.21-8.13 (2H, m), 7.75-7.66 (3H, m), 7.48 (1H, t), 7.25 (1H, d), 4.26-4.15 (2H, m ), 3.59-3.47 (2H, m), 2.68 (2H, s), 2.48 (3H, s), 2.42-2.31 (2H, m), 1.74 (2H, d).
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