반응 #169233

반응 방정식

4-[3-cyclohexylethynyl-6-(4-hydroxy-phenyl)-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester

→

title compound

수율 95.4%

4-[3-(2-cyclohexyl-ethyl)-6-(4-hydroxy-phenyl)-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester

수율 95.4%

용매

methanol

반응 조건

후처리

1. 1
   workup.WAIThydrogenation pursued for an additional 8 hours
2. 2
   여과The reaction mixture was then filtered
3. 3
   농축concentrated under reduced pressure

실험 절차

To a solution of 4-[3-cyclohexylethynyl-6-(4-hydroxy-phenyl)-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester (0.34 g, 0.56 mmol) in methanol (15 ml) was added Pd/C (10%, 12 mg, 0.01 mmol). The reaction mixture was hydrogenated at 4 bar for 18 h, Pd/C (10%, 12 mg, 0.01 mmol) was added and hydrogenation pursued for an additional 8 hours. The reaction mixture was then filtered and concentrated under reduced pressure to yield the title compound (0.33 g, 95%) as a grey solid.

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