The phrase "activity compound" is not a standard expression in written English and may cause confusion.
It could potentially be used in specific contexts related to activities or compounds in fields like chemistry or project management, but clarity is essential.
Example: "The research team focused on the activity compound to determine its effectiveness in the experiment."
Alternatives: "activity cluster" or "activity complex".
In order to study their structure-active relationship, we choose a highly active compound 4k and low activity compound 4c as model compounds; the frontier orbitals and LogP were calculated.
In regards to antibacterial activity, compound 1 was significantly active against tested respiratory tract pathogens including H. influenzae, P. aeruginosa, S. aureus, S. pneumoniae and S. pyogenes respectively.
Amongst all the compounds of both the series screened for their prostate cancer activity, compound 6a, 6e and 12a are the most active especially against LNCaP and DU-145 cancer cell lines.
All of the new compounds exhibited weak to moderate antioxidant activity, compound 9d exerted significant antioxidant power.
To explain the possible mechanism of anticonvulsant activity, compound 8f was tested in pentylenetetrazole, isoniazid, thiosemicarbazide, 3-mercaptopropionic acid and Bicuculline induced seizures tests.
To explain the possible mechanism of anticonvulsant activity, compound 3j was tested in pentylenetetrazole test, isoniazid test, thiosemicarbazide test, 3-mercaptopropionic acid and strychnine test.
Moreover, high activity compounds also possessed lower dipole moment value and higher number of hydroxyl groups than that of low activity compounds.
Particularly, it was observed for high activity compounds that the chemical stability was high as suggested by the lower hardness, higher softness and higher HOMO LUMOgap values than those of low activity compounds.
At this temperature, most of the nitrogen was removed, but the formation of Co and Mo compounds, which transform into low activity compounds during sulphidation, was not observed.
The structures show four highest activity compounds.
The observed inhibition of YopE secretion is most likely related to the inhibition of T3SS ATPase activity (compounds 7812, and 7832) except for the compound 7086.
