反应详情

4-[7-Benzyl-1-(ethoxycarbonylmethyl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl]piperazine-1-carboxylic acid tert-butyl ester was dissolved in acetic acid, and palladium hydroxide (ca. 10 mg) was added thereto. The reaction mixture was stirred at room temperature under hydrogen atmosphere overnight, filtered, and the filtrate was concentrated. The residue was dissolved in ethyl acetate, and washed with saturated aqueous solution of sodium bicarbonate. The organic layer was dried over anhydrous magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure to give 111 mg of the title compound.

1. filtrationfiltered
2. concentrationthe filtrate was concentrated
3. dissolutionThe residue was dissolved in ethyl acetate
4. washwashed with saturated aqueous solution of sodium bicarbonate
5. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
6. filtrationfiltered
7. concentrationthe filtrate was concentrated under reduced pressure