Microwave assisted, solvent-free synthesis and in-vitro antimicrobial screening of some novel pyrazolo[3,4-d]pyrimidin-4(5H)-one derivatives

An efficient and solvent-free synthesis of some novel pyrazolo[3,4-d]pyrimidin-4(5H)-one derivatives has been developed under microwave irradiation by the reaction of ortho amino ester of 1-substituted pyrazole with different aromatic nitriles in the presence of potassium tert-butoxide. All the newly synthesized compounds were characterized by various spectroscopic techniques and analytical methods. Furthermore, all the newly synthesized compounds have been screened in-vitro for their antimicrobial activities against S. aureus, B. subtilis, E. coli, P. aeruginosa, A. niger and C. albicans. All the compounds showed weak to good activity against all tested microorganisms

POCl3 catalyzed, one-step, solvent-free synthesis of some novel thieno[2,3-d]pyrimidin-4(3H)-one derivatives as antimicrobial agent

A POCl3 catalyzed, efficient, one-step and solvent-free synthesis of novel thieno[2,3-d]pyrimidin-4(3H)-one derivatives from 2-amino-4,5-substitutedthiophene-3-carbonitrile has been developed under conventional heating and microwave irradiation. The formation of compounds was confirmed using elemental analysis and spectroscopic techniques like IR, NMR (1H and 13C) and mass spectroscopy. Furthermore, they were screened in vitro to study their antimicrobial activity, which shows weak to moderate activity against all tested microorganisms

Orally Disintegrating Tablets: A Review

Drug delivery systems are becoming increasingly sophisticated as pharmaceutical scientists acquire a better understanding of the physicochemical and biochemical parameters pertinent to their performance. Over the past three decades, orally disintegrating tablets (ODTs) have gained considerable attention as a preferred alternative to conventional tablets and capsules due to better patient compliance. ODTs are solid dosage forms containing medicinal substances which disintegrate rapidly, usually in a matter of seconds, when placed on the tongue. Products of ODT technologies entered the market in the 1980s, have grown steadily in demand, and their product pipelines are rapidly expanding. New ODT technologies address many pharmaceutical and patient needs, ranging from enhanced life-cycle management to convenient dosing for paediatric, geriatric, and psychiatric patients with dysphagia. This has encouraged both academia and industry to generate new orally disintegrating formulations and technological approaches in this field. The aim of this article is to review the development of ODTs, challenges in formulation, new ODT technologies and evaluation methodologies, suitability of drug candidates, and future prospects

Orally Disintegrating Tablets: A Review

Drug delivery systems are becoming increasingly sophisticated as pharmaceutical scientists acquire a better understanding of the physicochemical and biochemical parameters pertinent to their performance. Over the past three decades, orally disintegrating tablets (ODTs) have gained considerable attention as a preferred alternative to conventional tablets and capsules due to better patient compliance. ODTs are solid dosage forms containing medicinal substances which disintegrate rapidly, usually in a matter of seconds, when placed on the tongue. Products of ODT technologies entered the market in the 1980s, have grown steadily in demand, and their product pipelines are rapidly expanding. New ODT technologies address many pharmaceutical and patient needs, ranging from enhanced life-cycle management to convenient dosing for paediatric, geriatric, and psychiatric patients with dysphagia. This has encouraged both academia and industry to generate new orally disintegrating formulations and technological approaches in this field. The aim of this article is to review the development of ODTs, challenges in formulation, new ODT technologies and evaluation methodologies, suitability of drug candidates, and future prospects