Synthesis of some Heterocyclic Compound Using α,β-unsaturated Ketones

Abstract

Objective: This study aimed to the synthesis fused pyridine due to the importance of these heterocycles both from chemical and biological points of view. Method: Pyridine derivatives 1a,b and 2a,b have been utilized for the synthesis of various fused pyridine through different chemical reactions to yield thieno [4

Formulation and Evaluation of Gastro Retentive Floating Tablet of Cetirizine Hydrochloride using Linseed Mucilageas Polymer

“…Then, 50 mL) of water was added to the crude mixture, and the solid was collected by vacuum filtration, and washed with warm water. The product was recrystallized from EtOH and dried at room temperature to give compounds (A, C, B) [14][15][16] as shown in Scheme 1.…”