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8-bromo-7-but-2-yn-1-yl-3-methyl-3,7-dihydro-1H-purine-2,6-dione
CAS No. 666816-98-4
分子式：C10H9BrN4O2
分子量： 297.1081
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1-[(4-methylquinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-bromoxanthine
CAS No. 853029-57-9
分子式：C20H17BrN6O2
分子量：