title: 3-(3-ethylphenyl)-2-substituted hydrazino-3H-quinazolin-4-one derivatives: new class of analgesic and anti-inflammatory agents.
abstract: A new series of 3-(3-ethylphenyl)-2-substituted hydrazino-3H-quinazolin-4-ones were synthesized by reacting the amino group of 2-hydrazino-3-(3-ethylphenyl)-3H-quinazolin-4-one with a variety of aldehydes and ketones. The title compounds were investigated for analgesic, anti-inflammatory and ulcerogenic index behavior. The compound 2-(N'-3-pentylidene-hydrazino)-3-(3-ethylphenyl)-3H-quinazolin-4-one (AS2) emerged as the most active compound in exhibiting analgesic activity and the compound 2-(N'-2-pentylidene-hydrazino)-3-(3-ethylphenyl)-3H-quinazolin-4-one (AS3) emerged as the most active compound in exhibiting anti-inflammatory activity; and these compounds are moderately potent when compared with the reference standard diclofenac sodium. Interestingly, the test compounds showed only mild ulcerogenic potential when compared with aspirin.
authors.forename: V
authors.initials: V
authors.lastname: Alagarsamy
authors.forename: V
authors.initials: V
authors.lastname: Raja Solomon
authors.forename: R V
authors.initials: RV
authors.lastname: Sheorey
authors.forename: R
authors.initials: R
authors.lastname: Jayakumar
mesh_terms: D000447:Aldehydes / Q000138:chemical synthesis / Q000737:chemistry; D000700:Analgesics / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D000818:Animals; D000893:Anti-Inflammatory Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D005260:Female; D007659:Ketones / Q000138:chemical synthesis / Q000737:chemistry; D008297:Male; D051379:Mice; D011799:Quinazolines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D051381:Rats; D013329:Structure-Activity Relationship
chemical_list: D000447:Aldehydes; D000700:Analgesics; D000893:Anti-Inflammatory Agents; D007659:Ketones; D011799:Quinazolines