This invention relates to quaternary ammonium salts of certain 2H-1-benzopyran derivatives, to the intermediates and processes useful for their preparation, to their free-radical scavenger and cellular protective properties and to their end-use application as therapeutic agents.
这项发明涉及某些2H-1-苯并
吡喃衍
生物的季
铵盐,以及用于它们的制备的中间体和过程,它们的自由基清除剂和细胞保护性能,以及它们作为治疗剂的最终应用。