Oxazolidines are five-membered ring compounds consisting of three carbons, nitrogen and oxygen. Oxygen and nitrogen are in the 1 and 3 positions, respectively. Oxazolidine is in general yellow or slightly yellow, alkaline liquid or solid, easily hydrolyzed by water or alcohol. It is insoluble in water (or hydrolyzed); soluble in benzene and chloroform. Oxazolidine derivatives are five-membered cyclic compounds containing at least one oxygen and nitrogen in their molecular structure. Oxazolidine derivatives are known to possess various therapeutic activities, such as anticancer and antibiotic properties.
Among the heterocyclic compounds, pyridopyrazine compounds are widely used as intermediates in the preparation of advanced pharmaceutical materials with biological activity, and are the scaffolding materials that have been widely concerned by academia and industry in recent years. There are many pyridopyrazine derivatives on the market for the treatment of various pharmacological diseases.