Synthesis of β-Substituted Naphth-1-yl Ethylamido Derivatives as New Melatoninergic agonists
摘要:
Naphthalene melatoninergic ligands with alkyl groups (Me, Et, Pr, Bz) in the beta position of the ethylamido chain were synthesised. The affinity of the compounds for chicken brain melatonin receptors was evaluated using 2-[I-125]-iodomelatonin as the radioligand. An increase in the affinity was observed with the beta-methyl derivatives and the greatest increase was seen with the (-) enantiomers. The introduction of a 2- or 7-MeO group on the naphthalene ring and the lengthening (Et, Pr) of the alkylamido chain gave potent compounds such as (-)1h (K-i = 24 pM). The functional activity of these compounds was evaluated by the aggregation of melanophores in Xenopus laevis tadpoles. The potency to produce lightening of the skin of Xenopus laevis was related to the affinities values of the molecules at melatonin chicken brain receptors. The most potent ligands were found to be full agonists and compound 1h was 25 fold more potent than melatonin in this bioassay. (C) 1999 Elsevier Science Ltd. All rights reserved.
A saturated heterocyclic carboxamide derivative of the following general formula (I) and salts thereof which have platelet activating factor (PAF) antagonizing activity.
具有血小板活化因子(PAF)拮抗活性的下式(I)饱和杂环羧酰胺衍生物及其盐类。
US4987132A
申请人:——
公开号:US4987132A
公开(公告)日:1991-01-22
Pacheco,H.; Gaige,R., Bulletin de la Societe Chimique de France, 1965, p. 861 - 868
作者:Pacheco,H.、Gaige,R.
DOI:——
日期:——
Synthesis of β-Substituted Naphth-1-yl Ethylamido Derivatives as New Melatoninergic agonists
作者:Monique Mathé-Allainmat、Marie Le Gall、Carole Jellimann、Jean Andrieux、Michel Langlois
DOI:10.1016/s0968-0896(99)00236-9
日期:1999.12
Naphthalene melatoninergic ligands with alkyl groups (Me, Et, Pr, Bz) in the beta position of the ethylamido chain were synthesised. The affinity of the compounds for chicken brain melatonin receptors was evaluated using 2-[I-125]-iodomelatonin as the radioligand. An increase in the affinity was observed with the beta-methyl derivatives and the greatest increase was seen with the (-) enantiomers. The introduction of a 2- or 7-MeO group on the naphthalene ring and the lengthening (Et, Pr) of the alkylamido chain gave potent compounds such as (-)1h (K-i = 24 pM). The functional activity of these compounds was evaluated by the aggregation of melanophores in Xenopus laevis tadpoles. The potency to produce lightening of the skin of Xenopus laevis was related to the affinities values of the molecules at melatonin chicken brain receptors. The most potent ligands were found to be full agonists and compound 1h was 25 fold more potent than melatonin in this bioassay. (C) 1999 Elsevier Science Ltd. All rights reserved.