Heteropolyacid catalyzed formation of thioparabanic acid derivatives
作者:Alireza Samzadeh-Kermani
DOI:10.1007/s00706-016-1774-y
日期:2017.2
AbstractA heteropoly acid-catalyzed reaction between amines, ammonium thiocyanate, and oxalate esters is reported. This route turned out to be a useful method for the preparation of thioparabanic acidderivatives. Graphical abstract
The compounds are substituted S-(aminoalkyl)isothioureas which are histamine H.sub.2 -antagonists. Two specific compounds of the present invention are S-[6-(N'-methylthioureido)hexyl]isothiourea and S-[5-(N'-cyano-N"-methylguanidino)pentyl]isothiourea.
Pharmacologically active compounds and compositions and methods of use
申请人:Smith Kline & French Laboratories Limited
公开号:US04152453A1
公开(公告)日:1979-05-01
The compounds are substituted S-(aminoalkyl)isothioureas which are histamine H.sub.2 -antagonists. Two specific compounds of the present invention are S-[6-(N'-methylthioureido)hexyl]isothiourea and S-[5-(N'-cyano-(N"-methylguanidino)pentyl]isothiourea.