title: [Synthesis, structures, and acute toxicity of gossypol nonsymmetrical aldehyde derivatives].
abstract: Nonsymmetrical aldehyde derivatives of gossypol, a yellow polyphenolic pigment of cottonseed, were synthesized by reactions with ammonia, aniline, 4-aminoantipyrine, and barbituric acid. Their structures were determined by UV spectrophotometry and IR and (1)H NMR spectroscopy methods. Their acute toxicities in white mice were compared with those of gossypol and the corresponding symmetrical analogues. It was demonstrated that in general, the fewer free aldehyde groups that contained the gossypol derivative, the lower its acute toxicity. Only in the case of a nonsymmetrical gossypol derivative bearing a 4-aminoantipyrine residue did we observe a deviation from the above correlation: its symmetrical counterpart was even more toxic, but still less toxic than gossypol.
authors.forename: K Z
authors.initials: KZ
authors.lastname: Tiliabaev
authors.forename: F G
authors.initials: FG
authors.lastname: Kamaev
authors.forename: N L
authors.initials: NL
authors.lastname: Vypova
authors.forename: A M
authors.initials: AM
authors.lastname: Iuldashev
authors.forename: B T
authors.initials: BT
authors.lastname: Ibragimov
authors.forename: S A
authors.initials: SA
authors.lastname: Talipov
mesh_terms: D000447:Aldehydes / Q000138:chemical synthesis* / Q000633:toxicity; D000818:Animals; D006072:Gossypol / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000633:toxicity; D007928:Lethal Dose 50; D051379:Mice; D013329:Structure-Activity Relationship
chemical_list: D000447:Aldehydes; D006072:Gossypol