title: Synthesis and pharmacological evaluation of 3-cyclohexyl-2-substituted hydrazino-3H-quinazolin-4-ones as analgesic and anti-inflammatory agents.
abstract: A series of novel 3-cyclohexyl-2-substituted hydrazino-quinazolin-4(3H)-ones were synthesized by reacting the amino group of 3-cyclohexyl-2-hydrazino quinazolin-4(3H)-one with a variety of aldehydes and ketones. The starting material, 3-cyclohexyl-2-hydrazino quinazolin-4(3H)-one, was synthesized from cyclohexyl amine. Title compounds were investigated for analgesic, anti-inflammatory and ulcerogenic behavior. The compound 3-cyclohexyl-2-(1-methylbutylidene-hydrazino)-3H-quinazolin-4-one (4c) emerged as the most active compound of the series and is moderately more potent in its analgesic and anti-inflammatory activities compared to the reference standard diclofenac sodium. Interestingly, test compounds showed only mild ulcerogenic potential when compared to acetylsalicylic acid.
authors.affiliation: Medicinal Chemistry Research Laboratory, MNR College of Pharmacy, Sangareddy-502294, India. drvalagarsamy@gmail.com
authors.forename: Veerachamy
authors.initials: V
authors.lastname: Alagarsamy
authors.forename: Durairaj
authors.initials: D
authors.lastname: Shankar
authors.forename: Viswas Raja
authors.initials: VR
authors.lastname: Solomon
authors.forename: Rajendra Vasant
authors.initials: RV
authors.lastname: Sheorey
authors.forename: Periyasamy
authors.initials: P
authors.lastname: Parthiban
mesh_terms: D000700:Analgesics / Q000138:chemical synthesis / Q000494:pharmacology* / Q000633:toxicity; D000818:Animals; D000893:Anti-Inflammatory Agents / Q000138:chemical synthesis / Q000494:pharmacology*; D001241:Aspirin / Q000633:toxicity; D004008:Diclofenac / Q000494:pharmacology; D004195:Disease Models, Animal; D004487:Edema / Q000188:drug therapy / Q000503:physiopathology; D005260:Female; D008297:Male; D051379:Mice; D010147:Pain Measurement; D052999:Quinazolinones / Q000138:chemical synthesis / Q000494:pharmacology* / Q000633:toxicity; D051381:Rats; D017208:Rats, Wistar; D013276:Stomach Ulcer / Q000139:chemically induced; D013329:Structure-Activity Relationship
chemical_list: D000700:Analgesics; D000893:Anti-Inflammatory Agents; D052999:Quinazolinones; D004008:Diclofenac; D001241:Aspirin