Introduction of the spirocyclic pyranochromene scaffold yielded several advantages over previous generation cores, including increased potency, reduced efflux, and reduced CYP2D6 inhibition.
Pao zhi is a common traditional approach that usually occurs before most herbs are prescribed whereby during processing, secondary plant metabolites are transformed, thus helping to increase potency, reduce toxicity and altering their effects.
It is increasingly clear, however, that inhaled biological therapeutics can offer some strong advantages over traditional therapeutics including increased potency, reduced systemic availability, and potentially, a longer duration of action.
Such concerns have diminished in recent years as newer medicines have become available with fewer toxicities and better potency (reducing the chance of resistance development).
According to the theories of TCM, the main purposes of herb processing are to increase potency, reduce toxicity, and alter the effectiveness of the raw materials.
By synthesizing hundreds of Hh-Ag1.1 derivatives, several related compounds (Hh-Ag 1.2, 1.3, 1.4 and 1.5) were identified with enhanced potency, reduced toxicity and/or improved stability.
These limitations of dynasore lead to the synthesis of dihydroxyl and trihydroxyl dynasore analogs, called the Dyngo compounds, which have improved potency, reduced cytotoxicity, and reduced detergent binding [ 26].
AM potency was reduced only threefold with this mutation, and AM2 potency was not significantly reduced.
And because nevirapine is one of the three front-line therapies recommended by the World Health Organization to fight the spread of AIDS in developing countries, the results provide a counterweight to its potency in reducing transmission of the virus to infants.
During processing, secondary plant metabolites are transformed, thus helping to increase potency and reduce toxicity, and altering their effects [4].
