Abstract: Compounds of formula (I) and their pharmaceutically acceptable salts are ligands at gastrin and/or cholecystokinin receptors.

Abstract: Compounds of formula (I) and their pharmaceutically acceptable salts are ligands at gastrin and/or cholecystokinin receptors. X and Y are independently ═N—, —N(R5)—═CH—, —S— or —O—.

Abstract: Compounds of formula (I) and their pharmaceutically acceptable salts are useful as histamine H3 receptor ligands. R1 and R3 are optional substituents such as C1 to C6 alkyl. R2 represents a bond or C1 to C5 (preferably C1 to C3) hydrocarbylene; R4 represents a bond or C1 to C5 (preferably C1 to C3) hydrocarbylene; R5 is hydrogen, C1 to C3 alkyl, R8—O—(C1 to C3)alkyl (wherein R8 is hydrogen or C1 to C3 alkyl), aryl, aryl(C1 to C3)alkyl; R6 represents a bond or —NR9—, wherein R9 is any of the groups mentioned above for R5; R7 is H or C1 to C15 hydrocarbyl (in which one or more hydrogen atoms may be replaced by halogen, and up to three carbon atoms may be replaced by oxygen, nitrogen or sulfur atoms); a is from 0 to 2; and b is from 0 to 3.

Abstract: A compound of the formula wherein R2 is an optionally substituted Cz to Cg alkylene or alkylene chain; R3 is C2 to C15 optionally substituted hydrocarbyl; X is a bond or —NR4—, wherein R4 is hydrogen or non-aromatic C1 to C5 optionally substituted hydrocarbyl, or aryl(C1 to C3)alkyl, or a pharmaceutically acceptable salt thereof.

Abstract: Compounds of formula (I) or (II) wherein R.sup.1 is C.sub.4 to C.sub.20 hydrocarbyl (in which one or more hydrogen atoms may be replaced by halogen, and up to three carbon atoms may be replaced by oxygen, nitrogen or sulphur atoms, provided that R.sup.1 does not contain an --O--O-- group), R.sup.2 is H or C.sub.1 to C.sub.3 alkyl, m is from 1 to 15, n is from 2 to 6, each X group is independently (a), or one X group is --N(R.sup.4)--, --O-- or --S-- and the remaining X groups are independently (a), wherein R.sup.3 is H, C.sub.1 to C.sub.6 alkyl, --CO.sub.2 R.sup.5, --CONR.sup.5.sub.2, --CR.sup.5.sub.2 OR.sup.6 or --OR.sup.5 (in which R.sup.5 and R.sup.6 are H or C.sub.1 to C.sub.3 alkyl), and R.sup.4 is H or C.sub.1 to C.sub.6 alkyl, each Y group is independently --C(R.sup.3)R.sup.4 --, or up to two Y groups are --N(R.sup.4)--, --O-- or --S-- and the remaining Y groups are independently --C(R.sup.3)R.sup.4 --, wherein R.sup.3 is as defined above, one R.sup.

Abstract: Compounds of the formula whereinone of U and V is --CHR.sup.2 --, and the other of U and V is selected from --N(COR.sup.4)--, --CH(COR.sup.4)--, --N(SO.sub.2 R.sup.4)-- and --CH(SO.sub.2 R.sup.4)--,and pharmaceutically acceptable salts thereof are ligands at gastrin and/or cholecystokinin receptors.

Abstract: Compounds of formula (I) and their pharmaceutically active salts are gastrin and CCK receptor ligands, where Ar is a monocyclic aromatic group, R.sup.1 is halo, amino, nitro, cyano, sulphamoyl, sulphonyl, trifluoromethyl, C.sub.1 to C.sub.3 alkyl, C.sub.1 to C.sub.3 alkylamino, C.sub.1 to C.sub.3 dialkylamino, phenyl, substituted phenyl, C.sub.1 to C.sub.3 alkoxy, hydroxy, esterified hydroxy, C.sub.1 to C.sub.3 hydroxyalkyl, C.sub.1 to C.sub.3 alkylcarboxyamino, carboxy, esterified carboxy and amidated carboxy, m is 0, 1, 2, 3, or 4, provided that m is not more than 2 unless R.sup.1 is exclusively halo, x+y=0 or 1, R.sup.2 and R.sup.4 independently are II, or C.sub.1 to C.sub.3 alkyl, R.sup.3 is H or C.sub.1 to C.sub.15 hydrocarbyl, where one or more hydrogen atoms of die hydrocarbyl group may be replaced by a halogen atom, and where up to two of the carbon atoms may be replaced by a nitrogen, oxygen or sulphur atom, provided that R.sup.3 does not contain a --O--O-- group, R.sup.5 is H or C.sub.1 to C.sub.

Abstract: Compounds of formula (Ia), (Ib), or (Ic), wherein A represents a group having two fused rings, or a group of formula (Id), R.sup.1.sub.(m) represents up to 6 substituents, K represents --O--, --S--, --CH.sub.2 --, --N(R.sup.2)-- or --N(COR.sup.2)--, in which R.sup.2 is H or C.sub.1 to C.sub.3 alkyl, W is a carbonyl, sulfonyl or sulfinyl group, provided that at least one of W and X contains carbonyl, Y and Z are as given in the description, and their pharmaceutically acceptable salts are ligands at CCK and/or gastrin receptors.

Abstract: Described herein are compounds of formula (I) or a pharmaceutically acceptable salt thereof, ##STR1## wherein L is N or C, one of X and Y is --NH--CH.sub.2 --R.sup.2 and the other is the substituent of formula (II). The compounds are potent gastrin and/or CCK antagonists.

Abstract: Compounds of formula (Ia), (Ib), or (Ic), wherein A represents a group having two fused rings, or a group of formula (Id), R.sup.1.sub.(m) represents up to 6 substituents, K represents --O--, --S--, --CH.sub.2 --, --N(R.sup.2)-- or --N(COR.sup.2)--, in which R.sup.2 is H or C.sub.1 to C.sub.3 alkyl, W is a carbonyl, sulfonyl or sulfinyl group, provided that at least one of W and X contains carbonyl, Y and Z are as given in the description, and their pharmaceutically acceptable salts are ligands at CCK and/or gastrin receptors.

Abstract: Compounds of formula (I), wherein A is selected from (a), (b), (c), (d), (e), (f) and B is selected from (g), (h), and (i), wherein W is a carbonyl, sulphonyl or sulphinyl group, and X is a carbonyl, sulphonyl or sulphinyl group or --C(O)--CH.sub.2 -- (in which the carbonyl group is bonded to Y), provided that at least one of W and X contains carbonyl, Y is R.sub.9 --O-- or R.sub.9 --N(R.sub.10)--, Z is selected from (i), (ii), (iii), (iv) or Z is absent and W is H, with a number of provisions and phamaceutically acceptable salts thereof are ligands at CCK and/or gastrin receptors.