title: Nitric oxide donor beta2-agonists: furoxan derivatives containing the fenoterol moiety and related furazans.
abstract: The structure of fenoterol, a beta2-adrenoceptor agonist used in therapy, has been joined with furoxan NO-donor moieties to give new NO-donor beta2-agonists. The furazan analogues, devoid of the property to release NO, were also synthesized for comparison. All the compounds retained beta2-agonistic activity at micromolar or submicromolar concentration when tested on guinea pig tracheal rings precontracted with carbachol. Among the furoxan derivatives, the NO contribution to trachea relaxation was evident with product 15b at micromolar concentrations. All the new NO-donor hybrids were able to dilate rat aortic strips precontracted with phenylephrine. Both furoxan and furazan derivatives displayed antioxidant activity greater than that of fenoterol.
authors.affiliation: Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino, Via Pietro Giuria 9, 10125 Torino, Italy.
authors.forename: M Federica
authors.initials: MF
authors.lastname: Buonsanti
authors.forename: Massimo
authors.initials: M
authors.lastname: Bertinaria
authors.forename: Antonella Di
authors.initials: AD
authors.lastname: Stilo
authors.forename: Clara
authors.initials: C
authors.lastname: Cena
authors.forename: Roberta
authors.initials: R
authors.lastname: Fruttero
authors.forename: Alberto
authors.initials: A
authors.lastname: Gasco
mesh_terms: D058666:Adrenergic beta-2 Receptor Agonists; D000818:Animals; D000975:Antioxidants / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D001011:Aorta / Q000187:drug effects / Q000502:physiology; D005280:Fenoterol / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D008862:Microsomes, Liver / Q000378:metabolism; D009119:Muscle Contraction / Q000187:drug effects; D009126:Muscle Relaxation / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects / Q000502:physiology; D009569:Nitric Oxide / Q000096:biosynthesis / Q000737:chemistry; D020030:Nitric Oxide Donors / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D010069:Oxadiazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D051381:Rats; D017208:Rats, Wistar; D013237:Stereoisomerism; D013329:Structure-Activity Relationship; D014132:Trachea / Q000187:drug effects / Q000502:physiology; D014665:Vasodilator Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology
chemical_list: D058666:Adrenergic beta-2 Receptor Agonists; D000975:Antioxidants; D020030:Nitric Oxide Donors; D010069:Oxadiazoles; D014665:Vasodilator Agents; C010166:furoxans; D005280:Fenoterol; D009569:Nitric Oxide