Abstract: Novel 2-sulfamoylbenzo[b]furans and derivatives thereof are shown to be useful for the treatment of elevated intraocular pressure in compositions including opthalmic drops and inserts.

Abstract: The present invention relates to 5-fluoro-PGI.sub.2 derivatives of Formula I. These compounds are useful for the treatment of platelet dysfunction. Also disclosed is the process for preparing them and the appropriate intermediates.

Abstract: Piperazine and homopiperazine compounds of the formula: ##STR1## in which: A is a hydrocarbon radical from C.sub.3 to C.sub.5, in a straight or branched chain, which may contain one or two double bonds, and optionally substituted by one or more OH;B is CH or a nitrogen atom;m is 2 or 3;X--Y-- represents --CH.dbd.CH--(CR'R").sub.n - in which n is zero or 1, and R' and R" are hydrogen or methyl;Z is oxygen or sulfur,R is hydrogen, alkyl from C.sub.1 to C.sub.5, cycloalkyl from C.sub.3 to C.sub.7, or phenyl optionally substituted by fluorine, chlorine or alkyl from C.sub.1 to C.sub.5, andT is hydrogen, fluorine, chlorine or alkyl from C.sub.1 to C.sub.5.These compounds and physiologically tolerable acid addition salts thereof may be used as medicines especially in the treatment of all kinds of tissular hypoxia.

Abstract: A compound of the formula ##STR1## in which A is ##STR2## n is 1, 2 or 3, and R is phenyl optionally substituted with halogen, alkyl, phenyl, cyano, hydroxy, alkoxy, mercapto, sulfinyl, sulfonyl, amino, nitro, trifluoromethyl and/or naphthyl radicals; or a furan, thiophene, pyridine, benzofuran, dibenzothiophene or thianthrene radical,or a pharmacologically acceptable salt thereof, for treating schistosomiasis.

Abstract: Aryl N-oxalyl-N-methyl-carbamates of the general formula ##STR1## in which X represents an alkoxy, alkenoxy, alkinoxy, aryloxy, alkylthio, alkenylthio, alkinylthio or arylthio radical, each of which may be optionally substituted, or represents a radical of the general formula --N R.sup.3 R.sup.4, wherein R.sup.3 and R.sup.4 are identical or different and represent a hydrogen atom or an alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkenyl or aryl radical, each of which may be optionally substituted,or the radicals R.sup.3 and R.sup.4, together with the N atom to which they are bonded, form an optionally substituted heterocyclic ring, andR.sup.1 represents an aryl radical which is optionally substituted,are novel and find use as pesticides, especially for combating insects, acarids and nematodes.

Abstract: Compounds of formula (I): ##STR1## a pharmaceutically acceptable salt or solvate thereof having anti-hypertensive activity, a process for their preparation and their use as pharmaceuticals.

Abstract: Amino derivatives of isochromans are described. These compounds exhibit antipsychotic and hypotensive activity.

Abstract: Bicyclic fused benzenoid compounds of the formula ##STR1## and pharmaceutically acceptable cationic and acid addition salts thereof, where M is O, CH.sub.2 or NR.sub.6 ; R.sub.6 is hydrogen, formyl, carbobenzyloxy or certain carboalkoxyalkyl, alkanoyl, alkyl, aralkyl or aralkylcarbonyl groups;A' is:(1) A where one of A and B is hydrogen such that when A is hydrogen, B is C(R.sub.2 R.sub.3)(CH.sub.2).sub.f Q and f is 1 or 2; when B is hydrogen, A is C(R.sub.2 R.sub.3)(CH.sub.2).sub.f Q and f is 0 or 1, when taken together A and OR.sub.1 form a lactone or certain derivatives thereof;(2) A' is ##STR2## (3) A' is Q.sub.3 ; Q is CO.sub.2 R.sub.7, COR.sub.8, C(OH)R.sub.8 R.sub.9, CN, CONR.sub.12 R.sub.13, CH.sub.2 NR.sub.12 R.sub.13, CH.sub.2 NHCOR.sub.14, CH.sub.2 NHSO.sub.2 R.sub.17 or 5-tetrazoyl;Q.sub.3 is ##STR3## 5-tetrazolyl, CH.sub.2 CONHCOR.sub.7, COOH or certain ester, amide, carboximido or sulfonimido derivatives thereof, CONHOH, CONHCONH.sub.2, or COCH.sub.2 Q.sub.4 where Q.sub.

Abstract: A compound having the formula ##STR1## in which R is hydrogen or alkyl having 1 to 4 carbon atoms; R.sub.1 is hydrogen, alkyl having 1 to 5 carbon atoms, cycloalkylmethyl in which the cycloalkyl group has from 3 to 6 carbon atoms, 2-hydroxyethyl, alkoxycarbonyl in which the alkoxy group has 1 or 2 carbon atoms, 2-carboxypropyl, N-benzyl-2-carbamoyl propyl, phenyl, phenyl substituted by methoxy, trifluoromethyl or acetyl, benzyl, benzyl substituted by halogen, benzoyl, benzoyl substituted by three methoxy groups, 3,5-dimethoxy-4-acetoxy or 3,5-dimethoxy-4-ethoxycarbonyloxy, cinnamoyl, cinnamoyl in which the phenyl ring is substituted with trifluoromethyl or by one or more methoxy groups, phenoxyacetyl, phenoxyacetyl in which the phenyl ring is substituted with halogen or methoxy, and ##STR2## in which m is 2 or 3 and R.sub.2 and R.sub.

Abstract: 2-(1-Piperazinyl)-2,4,6-cycloheptatrien-1-one derivatives, therapeutically acceptable acid addition salts thereof, processes for their preparation, methods of using the derivatives and pharmaceutical compositions of the derivatives are disclosed. The derivatives exhibit dopamine-receptor stimulating activity in a mammal and are useful for treating hyperprolactinemia, galactorrhea, amenorrhea, impotence, Parkinsonism, diabetes, acromegaly, hypertension and other central nervous system disorders.

Abstract: The present invention provides novel 1-(6-hydroxy-4- or 7-methoxy or 4,7-dimethoxy-5-benzofuranyl)-4-substituted-1,3-butanediones which are useful as intermediates in the synthesis of khellin and related anti-atherosclerotic furochromones.

Abstract: The present invention provides novel imidazolyl-benzothiophenes and derivatives thereof which are useful as thromboxane A.sub.2 (TXA.sub.2) synthetase inhibitors and as such represent potent pharmacological agents.

Abstract: The laevo and dextro forms of dl-3,4-trans-2,2-disubstituted-3,4-diarylchromans and similar derivatives thereof have substantially double the post-coital anti-fertility activity of the known racemic compound. The resolution of such known compound into the l- and d-isomeric forms may be carried out using di-p-toluoyl-l-tartaric acid monohydrate or di-p-toluoyl-d-tartaric acid.

Abstract: A 1-(4-aminobenzyl)-2,3-dioxopiperazine derivative represented by the formula: ##STR1## and an acid addition salt thereof have excellent carcinostatic activity but a low toxicity. Therefore, said compounds are useful as medicines and also as intermediates.

Abstract: 4-(3-Aryloxy-2-hydroxypropyl)piperazines bearing a carbamyl group in the 1-position are .beta.-adrenergic blockers. A typical example is 1-carbamyl-4-{3-[2-allyl-3-(2-carbethoxyaminoethyl)phenoxy]-2-hydroxypropy l}piperazine.

Abstract: Water soluble quaternary ammonium salt compounds exhibit outstanding insecticidal and miticidal activity coupled with reduced mammalian toxicity and acceptable phytotoxicity.

Abstract: The invention relates to novel furans, especially benzofuranones of the general formula ##STR1## in which R.sub.1 represents hydrogen or an aliphatic radical, R.sub.2 represents an amino group di-substituted by a divalent hydrocarbon radical, and the aromatic ring A may be additionally substituted, and their salts and/or isomers, processes for the manufacture of compounds of the formula (I) and their salts and isomers, pharmaceutical preparations containing these compounds, and their use as the active ingredients of medicaments as anti-inflammatory agents, analgesics or light-screening agents and/or for the manufacture of pharmaceutical preparations.

Abstract: Novel heterobicyclic compounds of Formula I, processes for preparing same and pesticidal compositions and methods are described.

Abstract: This invention relates to the derivatives of the following formula: ##STR1## in which R, R', R.sub.1, R.sub.2 are hydrogen atoms or hydrocarbonated radicals, and X is an oxo, hydroxy, imino or aminal radical.These compounds have anti-fibrillating activity.

Abstract: The drug contains an active substance consisting of 1-(3'-benzofuryl)-4-benzylpiperazine. In order to prepare the compound, a reaction is carried out with reflux between 3-coumaranone and N-benzylpiperazine in the presence of acetic acid and in an aromatic solvent.

Abstract: A compound having the general formula or an acid addition salt thereof ##STR1## in which formula R.sub.1 is selected from the group consisting of(A) an at least mononuclear heterocyclic group having 4 to 10 carbon atoms in the ring system bound to the group ##STR2## through a carbon atom and containing at least one oxygen, nitrogen or sulphur atom,(B) substitution products of (A) containing at least one substituent selected from the group consisting of halogen, trifluoromethyl, hydroxy, alkoxy of 1 to 3 carbon atoms, unsubstituted amino, amino substituted by up to two alkyl groups each having 1 to 3 carbon atoms and alkyl groups having 1 to 6 carbon atoms,X is oxygen, sulphur or an NH-group,Y is an alkylene group having 1 to 3 carbon atoms in the chain, or an alkylene group having 1 to 3 carbon atoms in the chain substituted by (a) up to 3 alkyl groups each having up to 3 carbon atoms and a total of not more than 8 carbon atoms, or (b) substituted by one or two phenyl groups,R.sub.

Abstract: Prostaglandin analogues of the general formula: ##STR1## [wherein the ring A represents: ##STR2## the ring B represents: ##STR3## (wherein R.sup.6 represents hydrogen, methyl or ethyl, and r is zero, one or two), Y represents ethylene, cis- or trans-vinylene or ethynylene, Z represents a grouping of the formula: --(CH.sub.2).sub.m --, --(CH.sub.2).sub.3 --CHR.sup.7 --, --(CH.sub.2).sub.2 --CHR.sup.7 --CH.sub.2 --, --CH.sub.2 --CHR.sup.7 --(CH.sub.2).sub.2 --, --CHR.sup.7 --(CH.sub.2).sub.3 --, or trans--(CH.sub.2).sub.2 --CH.dbd.CH-- (wherein m is 3, 4 or 5, and R.sup.7 represents methyl or ethyl), R.sup.1 represents a grouping of the formula: --COOR.sup.8, ##STR4## or --CH.sub.2 OR.sup.11 (wherein R.sup.8 represents hydrogen, alkyl, aralkyl, cycloalkyl which is unsubstituted or substituted by at least one alkyl group, or R.sup.

Abstract: New spiro compounds of the formula: ##STR1## wherein n is an integer of 1 to 4, and X is halogen, lower alkyl, nitro, amino which may be substituted, hydroxyl which may be substituted, acyl, carboxyl, lower alkoxycarbonyl, carbamoyl which may be substituted, sulfamoyl which may be substituted, lower alkylthio or lower alkylsulfonyl, or two of X at the 5- and 6-positions together form --CH.dbd.CH--CH.dbd.CH--, exhibit inhibitory activity to thrombocyte aggregation and are useful for the prophylaxis or treatment of cardiovascular disturbance such as thrombosis.

Abstract: Compounds of general formula ##STR1## wherein R.sup.1 represents a member selected from the group consisting of (a) an unsubstituted at most binuclear aryl group having from 6 to 10 carbon atoms, such groups substituted by from 1 to 3 equal or different radicals selected from the group consisting of alkyl, halogenoalkyl, alkoxy, dialkylamino each having up to 4 carbon atoms in the alkyl moiety, halogen phenyl, carboxyl, cyano, nitro and hydroxy groups,(b) a 5- to 6-membered heteroaromatic ring wherein the heteroatom is selected from nitrogen, oxygen and sulfur atoms and such rings anellated to a benzene nucleus;R.sup.2 represents a member selected from the group consisting of hydrogen, alkyl having up to 3 carbon atoms, phenyl, cycloalkyl having up to 6 carbon atoms in the ring and cycloalkyl bearing a hydrocarbon bridging radical having up to 2 carbon atoms;R.sup.3 represents hydrogen, hydroxy or acyloxy;R.sup.4 and R.sup.

Abstract: 3-Aralkyloxy-2,3-dihydro-2-(imidazolylmethyl(benzo(b)thiophenes and related derivatives having antifungal, antibacterial, and antiprotozoal activity are prepared by the reaction of the corresponding 2,3-dihydro-3-hydroxy-2-(imidazolylmethyl)benzo(b)thiophene or related derivative and an aralkyl halide.Preferred compounds are those where the aralkyl function is a hetercyclic aromatic, particularly 2-chloro-3-thenyl, and where the benzene nucleus is substituted by chlorine or fluorine.Pharmaceutical formulations comprising compounds of this invention are described, as well as the method for their use in treating microbial infections.

Abstract: Derivatives of 1-aminopropan-2-o1 which are useful in the treatment and control of cardiac disorders in warm-blooded mammals. The process of manufacture and pharmaceutical compositions.

Abstract: The present invention provides 2,5-inter-o-phenylene-3,4-dinor-5,9.alpha.-epoxy-6-iodo-PGF.sub.1 amides. These compounds are intermediates for preparing 2,5-inter-o-phenylene-3,4-dinor-prostacyclin analogs, which are useful for pharmacological purposes, e.g., as antithrombotic agents.

Abstract: The present invention provides 2,5-inter-o-phenylene-3,4-dinor-5,9.alpha.-epoxy-PGF.sub.1 amides. These compounds are useful for a wide variety of pharmacological and therapeutical purposes, e.g., as antithrombotic agents.

Abstract: A flavan compound represented by the formula (I) ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 are as defined above, and the pharmaceutically acceptable acid addition salt thereof, which are useful as pharmaceutical agent having anti-convulsive, anti-ulcer, anti-arrythmic and diuretic activities.

Abstract: 2,3-Dihydro-1-benzothiepin-4-carboxamides, e.g. those of the formula ##STR1## Am=arylamino or N-alkyl-N-arylamino substituted by R X=HO, alkoxy, alkanoyloxy or alkyleneiminoR=alkyl, alkoxy, alkylmercapto, halo, CF.sub.3, CN, or NO.sub.2n=0-2or their salts with therapeutically useful bases, exhibit anti-inflammatory effects.

Abstract: Compounds of general formula ##STR1## wherein R.sup.

Abstract: The invention relates to chroman derivatives of the general formula ##STR1## wherein R.sub.1 is hydrogen, lower alkyl, substituted phenyl, phenyl, phenyl-lower alkyl, substituted phenyl-lower alkyl or lower alkyl-amino-lower alkyl;R.sub.2 is ##STR2## R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each is independently selected from hydrogen, hydroxy, amino, -o-acyl, -o-lower alkyl; ##STR3## halogen, lower alkyl, or halo substituted lower alkyl; and salts and hydrates thereof.These compounds are useful as anti-inflammatory agents; for inhibition of blood platelet aggregation, as antiallergy and as antihypertensive agents.

Abstract: Compounds of the formula (II): ##STR1## and pharmaceutically acceptable acid-addition salts thereof wherein Ar is a pyridyl or optionally substituted phenyl group of the sub-formula --C.sub.6 H.sub.3 R.sub.1 R.sub.2 wherein R.sub.1 is a hydrogen, fluorine, chlorine or bromine atom or a lower alkyl, lower alkoxyl, lower acyl, lower acyloxyl or lower alkoxycarbonyl group; and R.sub.2 is a hydrogen, fluorine or chlorine atom or a lower alkyl or lower alkoxy group having useful anti-hypertension activity, their preparation, and pharmaceutical compositions containing them.

Abstract: The present invention provides novel thromboxane analogs and intermediates. Particularly, the present invention provides novel 11a-methano-TXA.sub.2 amides.

Abstract: This invention relates to certain structural and pharmacological analogs of prostacyclin (PGI.sub.2) and 5,6-dehydroprostacyclin (PGI.sub.1) and 5,9.alpha.-epoxy-9-deoxy-PGF.sub.1, wherein between the position beta to the carboxy (C-2) and C-5 there is substituted an inter-o-phenylene for the ethylene chain. These novel 2,5-inter-o-phenylene-3,4-dinor-prostaglandin or prostacyclin-type compounds are useful for certain of the same pharmacological purposes as prostacyclin, particularly being smooth muscle stimulators, blood pressure depressors and platelet aggregation inhibitors. Also provided are novel intermediates therefor, namely corresponding interphenylene-containing PGF.sub.2.alpha. and 5-halo-PGI.sub.1 and 6-halo-5,9.alpha.-epoxy-9-deoxy-PGF.sub.1 compounds.

Abstract: 2,3-Dihydro-2,2-dimethyl-7-benzofuranyl N-carboxylated-N-methyl-carbamates of the formula ##STR1## in which R is alkoxy with 1-10 C atoms, alkenoxy or alkynoxy with 5-7 C atoms each optionally substituted by halogen or by a radical of the formula--X--R.sup.1 or --NR.sup.2 R.sup.3 ; or NR.sup.2 R.sup.3 ;X is an oxygen or sulphur atom or a sulphoxide or sulphone group,R.sup.1 is hydrogen or alkyl with 1-4 C atoms,R.sup.2 and R.sup.3 independently is hydrogen, alkyl radical with 1-18 C atoms, alkenyl with up to 8 C atoms, or together are ##STR2## and W is hydrogen or alkyl wth 1-4 C atoms,which possess arthropodicidal and nematocidal properties.

Abstract: A fluorescent pigment consisting of N-substituted iminocoumarins of the general formula I, ##STR1## wherein X.sub.1 is a cyano group, a carboxamido group or an aryl or a heteroaryl radical linked directly or through a --CO or --SO.sub.2 group,X.sub.2 is an amino group, hydroxy group or an alkoxy group and when it is an amino group, may carry an optionally substituted alkylene or alkylidene group bound in ortho position to the nitrogen atom and in para position with respect to the coumarin oxygen atom,X.sub.3 is a hydrogen atom, a halogen atom or a cyano group andX.sub.4 is a functionally converted carboxyl groups. The new dyestuffs dye polyester fiber in orange or red shades with good fastness.

Abstract: Compounds of the formula ##STR1## wherein Ar is phenyl; mono- or di-substituted phenyl, where the substituents are one to two halogens, one to two alkyls of 1 to 3 carbon atoms, or one amino, nitro, cyano or trifluoromethyl; or pyridinyl;R is hydrogen, chlorine, methyl or methoxy;R.sub.1 is hydrogen or methyl;R.sub.2 is hydrogen, alkyl of 1 to 6 carbon atoms, alkenyl of 2 to 6 carbon atoms, alkynyl of 2 to 6 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, methyl-(cycloalkyl of 3 to 8 carbon atoms) or --A--R.sub.4,where A is alkylene of 2 to 3 carbon atoms, and R.sub.4 is hydroxyl, methylamino, dimethylamino, N-methyl-ethylamino, diethylamino, pyrrolidino, piperidino, hexamethyleneimino, morpholino or 4-methyl-1-piperazinyl; orR.sub.1 and R.sub.

Abstract: The present invention relates to 15-epi-derivatives of prostacyclin and its analogs, to a process for their preparation and to pharmaceutical and veterinary compositions containing them.

Abstract: Novel spiro compounds of the formula: ##STR1## wherein Ring A represents a benzene ring or a naphthalene ring, said rings being unsubstituted or substituted by at least one of lower alkyl, nitro, halogen, amino which may optionally be substituted, hydroxyl which may optionally be substituted, acyl, sulfamoyl, carboxyl, lower alkoxycarbonyl, carbamoyl which may optionally be substituted, ureido which may optionally be substituted, thioureido which may optionally be substituted, lower alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, aminomethyl which may optionally be substituted, cyano and phenyl, have gastric secretion inhibitive, anti-inflammatory and analgesic activities, and are of value as drugs.

Abstract: Insecticidal compositions containing N-aminosulfenyl derivatives of carbofuran are stabilized against spontaneous decomposition by incorporating an epoxide compound therein.

Abstract: Novel, 3-amino-1-benzoxepin-5 (2H)-one derivatives and methods for their production are disclosed. These derivatives correspond to the Formula I: ##STR1## wherein: R.sub.1 and R.sub.2 independently of one another arehydrogen,C.sub.1 -C.sub.5 alkyl,C.sub.1 -C.sub.5 alkyl substituted with a terminal phenyl, or a phenyl containing one or two halogens, methyl or methoxy groups, a 3,4-methylenedioxy or a 3,4-ethylenedioxy group,C.sub.2 -C.sub.5 alkyl substituted with terminal hydroxy or methoxy or,C.sub.3 -C.sub.4 alkenyl; orone of R.sub.1 and R.sub.2 are hydrogen or a C.sub.1 -C.sub.5 alkyl and the other is a C.sub.2 -C.sub.5 alkyl substituted with a terminal NR.sub.5 R.sub.6 ;R.sub.5 and R.sub.6 independently of one another are hydrogen or C.sub.1 -C.sub.5 alkyl; orR.sub.5 and R.sub.6 are together a 5 to 7 member ring, orR.sub.5 and R.sub.6 are together a 5 to 7 member ring having heterogeneous oxygen, sulfur or nitrogen;R.sub.1 and R.sub.2 are together a 5 to 7 member ring, orR.sub.1 and R.sub.

Abstract: Novel 3-amino-1-benzoxepine derivatives and methods for their production are disclosed. These derivatives correspond to the Formula I ##STR1## wherein: R.sub.1 and R.sub.2 independently of one another arehydrogen,C.sub.1 -C.sub.5 alkyl,C.sub.1 -C.sub.5 alkyl substituted with a terminal phenyl, or a phenyl containing one or two halogens, methyl or methoxy groups, a 3,4-methylenedioxy or a 3,4-ethylenedioxy group,C.sub.2 -C.sub.5 alkyl substituted with terminal hydroxy or methoxy or,C.sub.3 -C.sub.4 alkenyl; orone of R.sub.1 and R.sub.2 are hydrogen or a C.sub.1 -C.sub.5 alkyl and the other is a C.sub.2 -C.sub.5 alkyl substituted with a terminal NR.sub.7 R.sub.8 ;R.sub.7 and R.sub.8 independently of one another are hydrogen or C.sub.1 -C.sub.5 alkyl; orR.sub.7 and R.sub.8 are together a 5 to 7 member ring or said ring having heterogeneous oxygen, sulfur or nitrogen, orR.sub.1 and R.sub.2 are together a 5 to 7 member ring or said ring having heterogeneous oxygen, sulfur or NR.sub.9 ;R.sub.

Abstract: New propanone derivatives, useful for treating allergic diseases, the pharmacologically allowable salts thereof, their manufacturing process and pharmaceutical composition containing at least one of them as the active ingredient.

Abstract: 1-(2-phenyl-3-benzofuryl)-piperazines, e.g. those of the formula ##STR1## R=H, alkyl or halo R', R"=H, alkyl, alkoxy, alkylenedioxy, alkylthio or haloR.degree.=H, alkyl or hydroxyalkyln=2 or 3acyl derivatives, quaternaries and salts thereof are anticonvulsants.

Abstract: A compound of formula (I): ##STR1## and pharmaceutically acceptable salts thereof, wherein R is hydrogen or an alkyl group containing up to 6 carbon atoms; X is a bond or oxygen; Y is --(CH.sub.2).sub.n -- where n is 0 or an integer from 1 to 5 wherein one carbon atom not bound to the nitrogen atom may be optionally substituted with a hydroxy group; and Z is hydrogen or halogen; may be used in the prophylaxis and treatment of diseases whose symptoms are controlled by the mediators of the allergic response, for example asthma, hay-fever, rhinitis and allergic eczema.

Abstract: Amino chromanols, their preparation and anti-hypertensive compositions containing the compounds in hypotensive amounts with a pharmaceutically acceptable carrier for oral or parenteral administration. Pharmaceutically acceptable salts and O-acyl, particularly O-acetyl, derivatives are described. The compounds exist as racemates and optically active isomers.

Abstract: Novel 2-Benzothiepins, having substituents in the 1-position heretofore unknown, are described. The compounds possess hypotensive and antipsychotic properties; methods and compositions using them are described.

Abstract: There are disclosed novel compounds described as aminoalkyl benzofuran derivatives in which the aminoalkyl benzofuran is connected to a guanidine moiety or functional equivalent thereof through a linear connecting group. Processes for the preparation of such compounds are also disclosed. The compounds are useful for the suppression of gastric acid secretions in mammals and compositions for such uses are also disclosed.

Abstract: Compounds of the formula (I): ##STR1## or a pharmaceutically acceptable salt thereof wherein the NR.sub.1 R.sub.2 moiety is a 5-, 6-, or 7-membered saturated heterocyclic ring; R.sub.3 is hydrogen, alkyl of 1 to 4 carbon atoms or acyl of 1 to 4 carbon atoms; R.sub.4 is naphthyl or phenyl unsubstituted or substituted by one or two substituents selected from the group consisting of fluorine, chlorine, bromine, methoxyl, benzyloxyl, trifluoromethyl, methyl, cyano, nitro, acetoxyl, amino, methylamino, ethylamino, dimethylamino, diethylamino, acetamide, hydroxyl, methoxycarbonyl, ethoxycarbonyl, carboxamido, sulphonamido, carboxy, trifluoromethylthio, trifluoromethoxyl, methylsulphonyl, trifluomethylsulphonyl and methylthio; R.sub.5 is hydrogen or alkyl of 1 to 4 carbon atoms; R.sub.6 is hydrogen or alkyl of 1 to 4 carbon atoms; X is oxygen and the dotted line represents a single or double bond.