Synthesis and Evaluation of Homologous Analogs of Anticonvulsant 5-Substituted 3,3-Diethyl-4,5-Dighdro-2(3H)-Furanones
作者:Alemayyehu Ahungena、Daniel J. Canney
DOI:10.1007/s00044-006-0144-4
日期:2005.10
Anticonvulsant 4,5 dihydro-3,3-dialkyl-2(3H)-furanones act at sites on the GABAA receptor complex. Novel 5-substituted esters and homologous ester and amido derivatives of 4,5 dihydro-3,3-diethyl-2(3H)-furanone were synthesized and evaluated for anticonvulsant activity in rodents and for affinity to a site on the GABAA receptor complex ([3H]TBOB). The data suggest that the esters and the homologs prepared
Modifications to five-substituted 3,3-diethyl-4,5-dihydro-2(3H)-furanones en route to novel muscarinic receptor ligands
作者:Richie R. Bhandare、Daniel J. Canney
DOI:10.1007/s00044-010-9349-7
日期:2011.6
Lead lactone-based ligands with modest affinity for muscarinic receptors were modified based on structure-activity relationship data in the literature to provide a new series of 5-substituted 4,5-dihydro-2(3H)-furanones. The modifications included the addition of various nitrogen-containing heterocycles attached to substituted and unsubstituted aromatic rings. The target compounds were synthesized in modest yields and evaluated in preliminary muscarinic binding assays. A lactone-based ligand containing a diphenylmethylpiperazine moiety was identified as a nonselective muscarinic ligand with IC(50) of 340 nM. The design of future ligands will be based, in part, on structure-activity data reported herein.