diethyl 1,2,5-oxadiazole-3,4-dicarboxylate 2-oxide

1,3,7-trimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purine-8-carboxylic acid amide

8-甲基-8-氮杂双环[3.2.1]辛烷-3-醇

奎尼丁

2,5-二苯基-1,3,4-恶二唑