摘要:
A benzodiazepine derivative of formula I, or a pharmaceutically acceptable salt thereof: ##STR1## wherein: (a) R.sup.4 is an alkyl, cycloalkyl or aryl group. (b) R.sup.10 is chosen from halo, OH, CH.sub.3, OCH.sub.3, NR.sup.11 R.sup.12, NO.sub.2, NHCHO, CO.sub.2 H and CN, and R.sup.11 and R.sup.12 are independently selected from H and alkyl (C.sub.1 -C.sub.5) or together NR.sup.11 R.sup.12 form a cyclic structure II, ##STR2## wherein a is 1-6; and (c) R.sup.2 is an aromatic 5- or 6-membered, substituted or unsubstituted heterocycle containing at least two heteroatoms of which at least one is nitrogen. These compounds are gastrin and/or CCK-B receptor antagonists.
摘要:
A benzodiazepine derivative of formula (I), or a pharmaceutically acceptable salt thereof, wherein (a) R.sup.1 is --CH.sub.2 CHOH(CH.sub.2).sub.a R.sup.4 or a ketone group --CH.sub.2 CO(CH.sub.2).sub.a R.sup.5 in which a is 0 or 1 and R.sup.4 and R.sup.5 are selected from alkyl and cycloalkyl groups and saturated heterocyclic groups optionally substituted at a hetero-atom; (b) R.sup.2 and R.sup.3 are independently selected from aromatic carbocyclic and heterocylic residues; and (c) W and X are selected independently from halogen and hydrogen atoms and alkyl and alkoxy groups. These compounds are gastrin and/or CCK-B receptor antagonists. ##STR1##
摘要:
This invention relates to benzodiazepine derivatives which are useful as drugs exhibiting antagonism at the gastrin and/or CCK-B receptor, and to their production.
摘要:
A process is provided for preparing a tetrahydrobenzimidazole derivative represented by Formula (Ib): ##STR1## wherein Het representa s heterocyclic group which may be substituted with 1 to 3 substituents selected from the group consisting of a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl-lower alkyl group, an aralkyl group, a lower alkoxycarbonyl group, and a halogen atom; and X.sup.2 represents a single bond connected to the carbon atom of the heterocyclic ring as represented by Het. The process comprises reacting a heterocyclic compound represented by Formula (IIIa):Het--X.sup.2 --H (IIIa)wherein Het and X.sup.2 are as defined above, with a carboxylic acid represented by Formula (II): ##STR2## or a reactive derivative thereof.
摘要:
The present invention relates to thiazole derivative represented by the general formula (I): ##STR1## or a pharmaceutically acceptable salt thereof, which has a selective agonistic activity for 5-HT.sub.3 receptor, a pharmaceutical composition thereof, and a process for producing the same.
摘要:
A 5-HT.sub.3 receptor against containing a thiazole derivative as the effective ingredient is provided and is represented by the Formula (I): ##STR1## wherein the A ring is substituted or unsubstituted and represents a benzene or a heterocyclic ring with one or two heteroatoms; one of L.sub.1 or L.sub.2 represents a single bond and the other is non-existent or represents an alkylene or alkenylene group; R represents: ##STR2##
摘要:
A method is provided for the treatment of hypersensitive intestinal diseases (irritable bowel syndrome) comprising the administration of a tetrahydroimidazopyridine derivative of the formula: ##STR1## wherein either one of X and Y is nitrogen and the other one is a radical represented by the formula .dbd.C(R.sup.1)--; and R can be ##STR2## in which R.sup.1, R.sup.2 and R.sup.3 are same or different hydrogen atom or a lower alkyl group, and salts thereof.
摘要:
A tetrahydrobenzimidazole derivative represented by formula (I): ##STR1## wherein Het represents a heterocyclic group which may be substituted with 1 to 3 substituents selected from the group consisting of a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl-lower alkyl group, an aralkyl group, a lower alkoxy group, a nitro group, a hydroxyl group, a lower alkoxycarbonyl group, and a halogen atom; and X represents a single bond or --NH-- which is bonded to the carbon atom or nitrogen atom of the heterocyclic ring, or a pharmaceutically acceptable salt thereof.The compound of formula (I) and a salt thereof exhibits antagonism against 5-HT.sub.3 receptor.
摘要:
4,5,6,7-Tetrahydrobenzimidazole derivatives represented by general formula (I) ##STR1## wherein groups represents the following: R.sup.1, R.sup.2, R.sup.3 : independently represent hydrogen atom, hydroxy group, a halogen atom, a lower alkyl group which may optionally be substituted with a halogen atom, a lower alkoxy group, a lower alkylthio group, an aralkyloxy group, an aryloxy group, a lower alkanoyl group, carboxy group, a lower alkoxycarbonyl group or nitro group;R.sup.4, R.sup.5, R.sup.6 : hydrogen atom or a lower alkyl group;X: oxygen atom or sulfur atom;or salts thereof which are believed to have a 5-HT.sub.3 antagonizing activity.
摘要:
A novel thiazole derivative represented by general formula (I), which has a selected agonistic activity for 5-HT.sub.3 receptor, a pharmaceutical composition thereof, and a process for producing the same. In the said formula, R.sup.1 represents hydrogen or lower alkoxy; R.sup.2 and R.sup.3 are such that R.sup.2 represents hydrogen and R.sup.3 represents a group, --Y--Het, wherein Y represents a single bond or lower alkylene and Het represents a nitrogenous heterocyclic group, or alternatively R.sup.2 and R.sup.3 are combined together to form a group, --(CH.sub.2).sub.m --NR.sup.4 --(CH.sub.2).sub.n --, wherein m and n are each 1 or 2 and R.sup.4 represents lower alkyl; and X represents --NH--, --NHC(.dbd.O)NH--, --C(.dbd.O)NH-- or --NHC(.dbd.O)--.