668274-90-6

Carbamic acid,[1-[3-(cyanomethyl)-2,3,6,7-tetrahydro-7-(3-methyl-2-butenyl)-2,6-dioxo-1-(2-oxo-2-phenylethyl)-1H-purin-8-yl]-3-piperidinyl]-, 1,1-dimethylethylester