Alzheimer’s disease (AD) is a major public health problem. The dual inhibitors of monoamine oxidase-B (MAO-B) and acetyl cholinesterase (AchE) are reported as effective in treatment of AD. The present research work was planned to design, synthesize and evaluate pyrazole carboxamide derivatives as multifunctional agents for treatment of AD. A series of substituted pyrazole derivatives were synth...

Introduction New benzopyrone derivatives such as Schiff's like compounds, acetohydrazides or substituted with oxadiazole or pyrazole heterocycles were synthesized from parent acid hydrazide compound 3. Methods and Materials Structures of the synthesized compounds were elucidated using IR, NMR and mass spectroscopy. All the synthesized derivatives were selected by National Cancer Institute (NC...

In the last decades a number of pyrazole and isoxazole derivatives have been introduced in clinical practice. The therapeutic effectiveness of these agents has been bounded by a number of limiting factors. Due to this, the development of novel, selective, potent and safe agents remains in high priority in medicinal chemistry research. Synthans, such as oxoketenedithioacetals are known in the li...

Thiazoles and thiazolyl-pyrazole derivatives have been efficiently synthesized under neat reaction conditions in excellent yields. Condensation of 3-(2-bromoacetyl)-4-hydroxy-6-methyl-2H-pyran-2-one (1), thiosemicarbazide (2) and various carbonyl compounds (3 & 5) gave corresponding thiazole (4) and thiazolylpyrazole derivatives (6) in excellent yields by using Hantzsch-Thiazole synthesis. The ...