Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry and Computational Chemistry


Synthesis and biological activity studies of some novel pyrazoline derivatives

Author(s): Veena Vani Kotla, Vijaya Kumari Dalavai and Venkata Rao Chunduri

The title compounds were synthesized by refluxing different substituted chalcones (4a-j) with 2-(3-chloro-4-methyl- 2-oxo-2H-chromen-7-yloxy)acetohydrazide (3) in presence of glacial acetic acid. Compound (3) was prepared by the reaction of 3-chloro-7-hydroxy-4-methyl-2H-chromen-2-one (1) with ethyl chloroacetate and subsequent treatment with hydrazine hydrate. The newly synthesized compounds were characterized by 1H NMR, IR, and Mass spectral data. Further all the compounds were screened for antimicrobial activity.

ankara escort
mobile bitcoin casino
Casumo no deposit bonus bitcoin nedir?