Studies on structure modification and application of Tangeretin;

Therefore,structure modification of classical peptide becomes a preferable way for drug research and development.

Meanwhile, they took some structure transformations and adjusted the process operatin.

The article summarizes the progress in chemical modification and structure transformation of glycyrrhetic acid in the past years and provides reference for the utilization of glycyrrhetic acid.

The design and construction of a villa′s structure reformation;

Aim To search for compounds through structural modification of cyclovirobuxine D,using 20 or 21-aminosteroids as lead compound for the treatment of cerebrovascular diseases with better lipid peroxidation inhibitory activity.

Aim To search for new compounds for the treatment of cardiovascular diseases by structural modification of cyclovirobuxine D.

The total chemical synthesis, structural modification and structure activity relationship of huperzine A have been systematically reviewed.

This paper makes analyses of the causes of the belt conveyer s of f- tracking problem existing in the production of the supported belt conveyer o f the long- distance belt conveyer, through structural transformation of the be lt conveyer, its ability against the off- tracking is increased, obtaining exce llent results.