title: Anti-inflammatory activity of quinazolinoformazans.
abstract: Eight substituted quinazolonoformazans were synthesized and evaluated for anti-inflammatory activity. The degree of protection provided by seven of these compounds, at a dose of 100 mg/kg, po, against carrageenin-induced edema in rat paw ranged from 26 to 57%. The four active substituted quinazolonoformazans (1, 2, 6, 8), on further evaluation for antiwrithmogenic activity, provided 10-80% protection against the aconitine-induced writhing response in mice. The ulcerogenic liabilities of two of the most active compounds were also determined. The doses producing ulcers in 50% of the treated rats (UD50) were 155 and 260 mg/kg, ip, for 2 and 8, respectively. The low toxicities possessed by these substituted quinazolonoformazans were indicated by their LD50 values which ranged from 600 to 1300 mg/kg, ip, in mice.
authors.affiliation: Jawaharlal Nehru Laboratory of Molecular Biology, Department of Pharmacology and Therapeutics, King George's Medical College, Lucknow, India.
authors.forename: R
authors.initials: R
authors.lastname: Kalsi
authors.forename: K
authors.initials: K
authors.lastname: Pande
authors.forename: T N
authors.initials: TN
authors.lastname: Bhalla
authors.forename: J P
authors.initials: JP
authors.lastname: Barthwal
authors.forename: G P
authors.initials: GP
authors.lastname: Gupta
authors.forename: S S
authors.initials: SS
authors.lastname: Parmar
mesh_terms: D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000138:chemical synthesis* / Q000633:toxicity; D001391:Azo Compounds / Q000138:chemical synthesis*; D002351:Carrageenan; D055598:Chemical Phenomena; D002621:Chemistry; D004487:Edema / Q000139:chemically induced / Q000188:drug therapy; D005260:Female; D005562:Formazans / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity; D008297:Male; D051379:Mice; D011799:Quinazolines / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity; D051381:Rats; D013276:Stomach Ulcer / Q000139:chemically induced
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D001391:Azo Compounds; D005562:Formazans; D011799:Quinazolines; D002351:Carrageenan