Certain endo-9-lower-alkyl 9-azabicyclo[3.3.1]nonane-3-amines are valuable intermediates for the preparation of 2-methoxy-4-amino-5-halo-N-[9-lower-alkyl]-azabicyclo[3.3.1]nonanylbenzami des wherein said final products possess useful pharmacological activity, such as ability to regulate gastro-intestinal function, anti-emetic activity and CNS activity.
Pharmaceutically active aza-bicyclo-benzamide derivatives
申请人:Beecham Group, Limited
公开号:US04273778A1
公开(公告)日:1981-06-16
This invention relates to novel substituted benzamides having useful pharmacological properties, to pharmaceutical compositions containing them, and to a process for their preparation. N-(2-Diethylaminoethyl)-2-methoxy-4-amino-5-chlorobenzamide, 1-ethyl-2(2-methoxy-5-sulphamoylbenzamidomethyl)pyrrolidine and N-[4'-(1"-benzyl)-piperidyl]-2-methoxy-4-amino-5-chlorobenzamide are well known compounds having useful pharmacological activity such as the ability to regulate the gastro-intestinal function anti-emetic activity and CNS activity. It has now been found that a certain structurally distinct class of substituted benzamides also has useful pharmacological activity, in particular dopamine antagonist activity.
A compound of the formula (I), and pharmaceutically acceptable salts thereof: ##STR1## wherein: R.sub.1 is a C.sub.1-6 alkoxy group; R.sub.2 and R.sub.3 are the same or different and are hydrogen, halogen, CF.sub.3, C.sub.2-7 acyl, C.sub.2-7 acylamino, or amino, aminocarbonyl or aminosulphone optionally substituted by one or two C.sub.1-6 alkyl groups, C.sub.1-6 alkylsulphone or nitro; R.sub.5 is hyrogen or C.sub.1-6 alkyl; R.sub.6 is C.sub.1-7 alkyl or a group --(CH.sub.2).sub.s R.sub.7 where s is 0 to 2 and R.sub.7 is a C.sub.3-8 cycloalkyl group, or a group --(CH.sub.2).sub.t R.sub.8 where t is 1 or 2 and R.sub.8 is C.sub.2-5 alkenyl or a phenyl group optionally substituted by one or two substituents selected from C.sub.1-6 alkyl, C.sub.1-4 alkoxy, trifluoromethyl and halogen; and n, p and q are independently 0 to 2; have useful pharmacological activity.
Certain aza-bicyclo-benzamide derivatives and pharmaceutical
申请人:Beecham Group Limited
公开号:US04336259A1
公开(公告)日:1982-06-22
Substituted benzamides having useful pharmacological properties, pharmaceutical compositions containing the same, pharmaceutically acceptable salts thereof, and procedure for administering said compositions. The active compounds have dopamine antagonist activity which is an effective amount of a compound of formula (I) and the compositions are particularly useful for the treatment of humans suffering from emesis impaired gastro-intestinal motility and disorders of the central nervous system. The administration of the compositions overcomes these disorders of the central nervous system and ordinary additions. The active compounds are characterized by having the formula (I), wherein R.sub.2 and/or R.sub.3 are sulphone groups, preferably either R.sub.2 or R.sub.3 being an aminosulphone or alkylsulphone group, which groups may optionally be substituted by 1 or 2 C.sub.1-6 alkyl groups.
Azabicyclic intermediates for pharmaceutical compounds
申请人:Beecham Group Ltd.
公开号:US04599420A1
公开(公告)日:1986-07-08
This invention relates to novel substituted benzamides having useful pharmacological properties, to pharmaceutical compositions containing them, to a process for their preparation and to intermediates therefor. N-(2-Diethylaminoethyl)-2-methoxy-4-amino-5-chlorobenzamide, 1-ethyl-2(2-methoxy-5-sulphamoylbenzamidomethyl)pyrrolidine and N-[4'-(1"-benzyl)-piperidyl]-2-methoxy-4-amino-5-chlorobenzamide are well known compounds having useful pharmacological activity such as the ability to regulate the gastro-intestinal function anti-emetic activity and CNS activity. It has now been found that certain intermediates for a structurally distinct class of substituted benzamides also has useful pharmacological activity, in particular dopamine antagonist activity.