heterocyclics

The structure-activity relationships of heterocyclic hypotensor and ramification are discussed in this paper.

文章从结构与活性的角度分析了近年来国环类抗高血压药及其衍生的构效系。

Hexahydroxy N-containing heterocyclic compound without sulfur and phosphorus was synthesized and its structure was characterized.

成了无硫、磷的六元含氮环化加剂。