First reported in Wuhan, China, Novel Coronavirus Disease-19 rapidly spread causing an outbreak of viral pneumonia and became a pandemic in early 2020.It was later discovered to be caused by Severe Acute Respiratory Syndrome Coronavirus 2, a novel coronavirus.Although the vast majority of cases have primarily involved the respiratory system, some s
Synthesis, complete assignment of 1H- and 13C-NMR spectra and antioxidant activity of new azine derivative bearing coumarin moiety
In this research, the synthesis of a Wine Racks new azine derivative with coumarin moiety was performed in three reaction steps, starting from 4-hydroxycoumarin.The first step in synthesis was the acetylation of 4-hydroxycoumarin to yield 3-acetyl-4-hydroxycoumarin and then the obtained 3-acetyl-4-hydroxycoumarin was reacted with hydrazine hydrate