8-***-7-(2-丁炔)-3-甲基***8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione666816-98-41KG390050KG36008-***-7-(2-丁炔)-3-甲基***8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione666816-98-41KG390050KG36008-***-7-(2-丁炔)-3-甲基***8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione666816-98-41KG390050KG36008-***-7-(2-丁炔)-3-甲基***8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione666816-98-41KG390050KG3600)