A convenient synthetic method of five- and six- membered cyclic guanidines fused with aromatic ring was presented. 2-Aminoaniline or 2-(aminomethyl)aniline was treated with dimethyl carbonimidodithioates to give isothiourea which was cyclized to cyclic guanidine by using soft metal cations (Ag+, Hg2+).
Methyl-6-n-propoxybenzothiazole-2-carbamate and anthelmintic
申请人:Schering Corporation
公开号:US04093731A1
公开(公告)日:1978-06-06
The title compound is a novel substance which effectively treats helminthiasis.
这个题目化合物是一种新颖的物质,可以有效地治疗蠕虫病。
Triazoleamine derivatives having histamine H.sub.2 -antagonist properties
申请人:Glaxo Group Limited
公开号:US04536508A1
公开(公告)日:1985-08-20
The invention relates to compounds of the general formula (I) ##STR1## and physiologically acceptable salts, hydrates and bioprecursors thereof, which show pharmacological activity as selective histamine H.sub.2 -antagonists.
Substituted phenylsulfonyloxybenzimidazolecarbamates and anthelmintic
申请人:Hoechst Aktiengesellschaft
公开号:US04639463A1
公开(公告)日:1987-01-27
New phenylsulfonyloxybenzimidazolecarbamates of the formula ##STR1## are described, as are processes for their preparation. The new compounds have anthelmintic activity, including, in particular, against liver flukes.