SYNTHESIS AND BIOLOGICAL SCREENING OF SOME HETEROCYCLES DERIVED FROM PIPERONAL
Novel pyrazolines and benzothiazepines derivatives containing piperonal nucleus were synthesized and screened for in vitro anti-bacterial as well as anti-fungal activity. The synthesized compounds were characterized by IR, 1 H NMR and MS study. These compounds shows good to excellent bioactivities as compare with reference organism.
Key message ::: Distributional patterns of pectin and hemicellulose epitopes in the phloem of four hardwoods vary between cell types including sieve tube elements, companion cells, parenchyma and sclerenchyma and between tree species.