Antitussive and mucus regulating 2-substituted thiazolidines
申请人:BOEHRINGER BIOCHEMIA ROBIN S.p.A.
公开号:EP0169581A2
公开(公告)日:1986-01-29
2-Substituted thiazolidines compounds having formula I
wherein X is a CH2, O or S, R is hydroxy or an acyloxy, alkyloxy, alkenyloxy or alkinyloxy group, R, is hydrogen or a group of formula
R2 is hydrogen or a free or esterified carboxy group, Ra and Rb are hydrogen or methyl, p is zero or 1, R3 is hydrogen, a C1-C2 alkylsulphonyl group, a phenyl or p-Cl phenyl, p-methylsulphonyl group or an acyl group; are useful as mucus regulating, antitussive and antibronchospastic agents.
N-Acyl-2-substituted-1,3-thiazolidines, a new class of non-narcotic antitussive agents: studies leading to the discovery of ethyl 2-[(2-methoxyphenoxy)methyl]-.beta.-oxothiazolidine-3-propanoate
作者:Carmelo A. Gandolfi、Roberto Di Domenico、Silvano Spinelli、Licia Gallico、Luigi Fiocchi、Andrea Lotto、Ernesto Menta、Alessandra Borghi、Carla Dalla Rosa、Sergio Tognella
DOI:10.1021/jm00003a014
日期:1995.2
complicated metabolism of 18a provided further insights for the design of newer related derivatives. The observation that the metabolic oxidation on the lateral chain's sulfur of 18a to sulfoxide maintained the antitussive properties suggested the introduction of isosteric functional groups with respect to the sulfoxide moiety. Subsequent structural modifications showed that hydrolyzable malonic residues