Abstract An efficient in situ condensation of citronellal, the main constituent of Eucalyptus citriodora essential oil (51%), with different amine derivatives of 2,3-diaminomaleonitrile and 3-[(2-aminoaryl)amino]dimedone has led to novel chiral benzodiazepine structures. All reactions were precipitated in ethanol and pure products were obtained in good yields (58–75%) without any purification. The
抽象的
香茅醛(柠檬桉精油的主要成分(51%))与 2,3-二
氨基顺
丁烯二腈和 3-[(2-
氨基芳基)
氨基]
二甲酮的不同胺衍
生物进行有效的原位缩合,产生了新型手性苯二氮卓结构。所有反应均在
乙醇中沉淀,无需任何纯化即可以良好收率(58-75%)获得纯产物。通过光谱技术,即1 H-NMR、 13 C-NMR、2D NMR 和 FTIR 对合成的苯二氮卓类药物进行了表征。使用差示扫描量热法 (
DSC) 和 HPLC 来确认苯二氮卓衍
生物的非对映异构体混合物的形成。