85772-63-0

Upstream product

• 802294-64-0 propionic acid 
• 66679-65-0 2-hydrazino-3-(4-methylphenyl)quinazoline-4-(3H)-one 
• 70335-70-5 2-methylthio-3-(4-methylphenyl)quinazolin-4(3H)-one 
• 37641-50-2 3-(4-methylphenyl)-2-thioxoquinazolin-4-one 

Relevant academic research and scientific papers

Synthesis and pharmacological investigation of novel 1-alkyl-4-(4- substituted aryl/heteroaryl)-1,2,4-triazolo[4,3-a]quinazolin-5(4H)-ones as a new class of H1-antihistaminic agents

A series of novel 1-alkyl-4-(4-substituted aryl/heteroaryl)-1,2,4- triazolo[4,3-a] quinazolin-5(4H)-ones were synthesized by the cyclization of 2-hydrazino-3-(4-subst. aryl/heteroaryl) quinazolin-4(3H)-one with various carbon donors. The starting material