嘌呤是一种杂环芳香族有机化合物，由与咪唑环稠合的嘧啶环组成。

Borapetoside E has anti-hyperglycemic activity, it can significantly reduce serum glucose levels at dose-dependent manners in alloxan-induced hyperglycemic mice and db/db type 2 diabetic mice.

Niceritrol 是一种烟酸酯，可降低总血浆以及 VLD 和 LD 脂蛋白部分中的胆固醇和甘油三酯。