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(2007/10/02)6-amino-1-isobutyl-1,3-dihydropyrimidine-2,4-dione
dimethyl sulfate
1-isobutyl-3-methyl-urea
cyanoacetic acid
7-(3,3-Diethoxy-propyl)-3-isobutyl-1-methyl-3,7-dihydro-purine-2,6-dione
3-(3-Isobutyl-1-methyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7-yl)-propionic acid
7-Dimethoxymethyl-3-isobutyl-1-methyl-3,7-dihydro-purine-2,6-dione
7-(2,3-Dihydroxy-propyl)-3-isobutyl-1-methyl-3,7-dihydro-purine-2,6-dione
(3-isobutyl-1-methyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7-yl)-acetic acid