Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Sodium 4-butyl-3,5-dioxo-1,2-diphenylpyrazolidin-4-ide, is researched, Molecular C19H19N2NaO2, CAS is 129-18-0, about Actions of anti-inflammatory drugs on smooth muscle.Name: Sodium 4-butyl-3,5-dioxo-1,2-diphenylpyrazolidin-4-ide.
The concentration-dependent relaxation of guinea pig tracheal muscle for a number of antiinflammatory drugs such as phenylbutazone Na salt (I) [129-18-0] was demonstrated. The concentration-response curves obtained with these drugs were parallel, and the progressive decrease in tone of tracheal muscle appeared to be due to the inhibition of prostaglandin synthesis.
From this literature《Actions of anti-inflammatory drugs on smooth muscle》,we know some information about this compound(129-18-0)Name: Sodium 4-butyl-3,5-dioxo-1,2-diphenylpyrazolidin-4-ide, but this is not all information, there are many literatures related to this compound(129-18-0).
Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem