Abstract: The invention provides new acetohydroxamic acid derivatives, having interesting properties on the central nervous system, of the formula: R.sub.1 R.sub.2 R.sub.3 C-CO-NHOH, in which R.sub.2 and R.sub.3 are each hydrogen or C.sub.1-6 alkyl, and R.sub.1 is C.sub.1-6 alkyl Z.sub.1 Z.sub.2 N (where Z.sub.1 and Z.sub.2 are each phenyl, substituted phenyl, or cycloalkyl), substituted hydantoinyl, benzhydroxylcarboxamido, Z.sub.3 CH.sub.2 -- (where Z.sub.3 =optionally substituted aryl), Z.sub.4 --A-- (where Z.sub.4 is optionally substituted phenyl or naphthyl, and A is --NH--, --N(C.sub.1-4 alkyl)--, --N(C.sub.5-6 cycloalkyl)--, --NHCO--, --N(C.sub.1-4 alkyl)CO--, --N(C.sub.5-6 cycloalkyl)CO--, --CONH--, --CON(C.sub.1-4 alkyl)--, --CON(C.sub.5-6 cycloalkyl)--, --NHCONH--, --N(C.sub.5 H.sub.6)CONH--, or --N(substituted phenyl)CONH--, optionally substituted benzimidazolyl, or an optionally substituted tricyclic radical, and their metal and acid addition salts.

Abstract: The invention provides new acetohydroxamic acid derivatives, having interesting properties on the central nervous system, of the formula: R.sub.1 R.sub.2 R.sub.3 C--CO--NHOH, in which R.sub.2 and R.sub.3 are each hydrogen or C.sub.1-6 alkyl, and R.sub.1 is C.sub.1-6 alkyl Z.sub.1 Z.sub.2 N (where Z.sub.1 and Z.sub.2 are each phenyl, substituted phenyl, or cycloalkyl), substituted hydantoinyl, benzhydroxylcarboxamido, Z.sub.3 CH.sub.2 --(where Z.sub.3 =optionally substituted aryl), Z.sub.4 --A-- (where Z.sub.4 is optionally substituted phenyl or naphthyl, and A is --NH--, --N(C.sub.1-4 alkyl)--, --N(C.sub.5-6 cycloalkyl)--, --NHCO--, --N(C.sub.1-4 alkyl(CO--, --N(C.sub.5-6 cycloalkyl)CO--, --CONH--, --CON(C.sub.1-4 alkyl)--, --CON(C.sub.5-6 cycloalkyl)-, --NHCONH--, --N(C.sub.5 H.sub.6)CONH--, or --N(substituted phenyl)CONH--, optionally substituted benzimidazolyl, or an optionally substituted tricyclic radical, and their metal and acid addition salts.

Abstract: The invention provides new acetohydroxamic acid derivatives, having interesting properties on the central nervous system, of the formula: R.sub.1 R.sub.2 R.sub.3 C--CO--NHOH, in which R.sub.2 and R.sub.3 are each hydrogen or C.sub.1-6 alkyl, and R.sub.1 is C.sub.1-6 alkyl Z.sub.1 Z.sub.2 N (where Z.sub.1 and Z.sub.2 are each phenyl, substituted phenyl, or cycloalkyl), substituted hydantoinyl, benzhydroxylcarboxamido, Z.sub.3 CH.sub.2 -- (where Z.sub.3 =optionally substituted aryl), Z.sub.4 --A-- (where Z.sub.4 is optionally substituted phenyl or naphthyl, and A is --NH--, --N(C.sub.1-4 alkyl)--, --N(C.sub.5-6 cycloalkyl)--, --NHCO--, --N(C.sub.1-4 alkyl)CO--, --N(C.sub.5-6 cycloalkyl)CO--, --CONH--, --CON(C.sub.1-4 alkyl)--, --CON(C.sub.5-6 cycloalkyl)--, --NHCONH--, --N(C.sub.5 H.sub.6)CONH--, or --N(substituted phenyl)CONH--, optionally substituted benzimidazolyl, or an optionally substituted tricyclic radical, and their metal and acid addition salts.

Abstract: The invention provides new acetohydroxamic acid derivatives, having interesting properties on the central nervous system, of the formula: R.sub.1 R.sub.2 R.sub.3 C--CO--NHOH, in which R.sub.2 and R.sub.3 are each hydrogen or C.sub.1-6 alkyl, and R.sub.1 is C.sub.1-6 alkyl Z.sub.1 Z.sub.2 N (where Z.sub.1 and Z.sub.2 are each phenyl, substituted phenyl, or cycloalkyl), substituted hydantoinyl, benzhydroxylcarboxamido, Z.sub.3 CH.sub.2 -- (where Z.sub.3 =optionally substituted aryl), Z.sub.4 --A-- (where Z.sub.4 is optionally substituted phenyl or naphthyl, and A is --NH--, --N(C.sub.1-4 alkyl)--, --N(C.sub.5-6 cycloalkyl)--, --NHCO--, --N(C.sub.1-4 alkyl)CO--, --N(C.sub.5-6 cycloalkyl)CO--, --CONH--, --CON(C.sub.1-4 alkyl)--, --CON(C.sub.5-6 cycloalkyl)--, --NHCONH--, --N(C.sub.5 H.sub.6)CONH--, or --N(substituted phenyl)CONH--, optionally substituted benzimidazolyl, or an optionally substituted tricyclic radical, and their metal and acid addition salts.

Abstract: Novel acetamide derivatives have been discovered to have useful pharmaceutical activity on the central nervous system. They may be prepared by reacting the corresponding ester or acid halide with the appropriately substituted amine.

Abstract: The sulphur- and oxygen-containing diaryl compounds of the formula: ##STR1## in which A and B, which may be the same or different, represent O, S, SO or SO.sub.2,Alk is a C.sub.1 -C.sub.4 hydrocarbon radical with a straight or branched chain, R represents COOH, an esterified COOH group, a carboxylic amide group, OH, O-SO.sub.2 CH.sub.3, NH.sub.2, NHR.sub.1, NR.sub.1 R.sub.2, NHZOH, NHZNR.sub.1 R.sub.2, C(.dbd.NH)NH.sub.2, C(.dbd.NH)NHOH or 2-.DELTA..sup.2 -imidazolinyl, Z is a C.sub.2 -C.sub.4 hydrocarbon radical with a straight or branched chain, and R.sub.1 and R.sub.2 each represent a C.sub.1 -C.sub.

Abstract: The invention provides new acetohydroxamic acid derivatives, having interesting properties on the central nervous system, of the formula: R.sub.1 R.sub.2 R.sub.3 C--CO--NHOH, in which R.sub.2 and R.sub.3 are each hydrogen or C.sub.1-6 alkyl, and R.sub.1 is C.sub.1-6 alkyl Z.sub.1 Z.sub.2 N (where Z.sub.1 and Z.sub.2 are each phenyl, substituted phenyl, or cycloalkyl), substituted hydantoinyl, benzhydroxycarboxamido, Z.sub.3 CH.sub.2 -- (where Z.sub.3 =optionally substituted aryl), Z.sub.4 --A-- (where Z.sub.4 is optionally substituted phenyl or naphthyl, and A is --NH--,--N(C.sub.1-4 alkyl)-, --N(C.sub.5-6 cycloalkyl)-, --NHCO--, --N(C.sub.1-4 alkyl)CO--, --N(C.sub.5-6 cycloalkyl)CO--, --CONH--, --CON(C.sub.1-4 alkyl)-, --CON(C.sub.5-6 cycloalkyl)-, --NHCONH--, --(N(C.sub.5 H.sub.6)CONH--, or --(N(substituted phenyl)CONH--, optionally substituted benzimidazolyl, or an optionally substituted tricyclic radical, and their metal and acid addition salts.

Abstract: The invention provides new acetohydroxamic acid derivatives, having interesting properties on the central nervous system, of the formula: R.sub.1 R.sub.2 R.sub.3 C--CO--NHOH, in which R.sub.2 and R.sub.3 are each hydrogen of C.sub.1-6 alkyl, and R.sub.1 is C.sub.1-6 alkyl Z.sub.1 Z.sub.2 N (where Z.sub.1 and Z.sub.2 are each phenyl, substituted phenyl, or cycloalkyl), substituted hydantoinyl, benzhydroxylcarboxamido, Z.sub.3 CH.sub.2 -- (where Z.sub.3 = optionally substituted aryl), Z.sub.4 --A-- (where Z.sub.4 is optionally substituted phenyl or naphthyl, and A is --NH--, --N(C.sub.1-4 alkyl)--, --N(C.sub.5-6 cycloalkyl)--, --NHCO--, --N(C.sub.1-4 alkyl)CO--, --N(C.sub.5-6 cycloalkyl)CO--, --CONH--, --CON(C.sub.1-4 alkyl)--, --CON(C.sub.5-6 cycloalkyl)--, --NHCONH--, --N(C.sub.5 H.sub.6 )CONH--, or --N(substituted phenyl)CONH--, optionally substituted benzimidazolyl, or an optionally substituted tricyclic radical, and their metal and acid addition salts.

Abstract: The present invention provides compounds of the formula: ##STR1## in which A is CH.sub.2, CHOH, CH.sub.2 O, CH.sub.2 S, CH.sub.2 NH, OCH.sub.2, SCH.sub.2, NH, NHCH.sub.2, NHCOCH.sub.2 or CH.sub.2 NHCH.sub.2, X.sub.1 is H, halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, X.sub.2 is halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, Z is 2-pyrimidinyl or C(.dbd.NR.sub.1)NHR.sub.2 (where R.sub.1 is H and R.sub.2 is H, OH or CH.sub.2 CO.sub.2 Et, or R.sub.1 and R.sub.2 together form CH.sub.2 CH.sub.2, CH.sub.2 CH.sub.2 CH.sub.2 or N.dbd.N), and their addition salts. The compounds of formula I and their salts are useful in therapy as hypotensive agents.

Abstract: Esters of 2-[4-(4-chlorobenzoyl)-phenoxy]-2-methylpropionic acid and bis-(hydroxyalkylthio)-alkanes of the formula: ##STR1## IN WHICH R is hydrogen or methyl are particularly useful in the prevention and treatment of hyperlipidaemia and hypercholesterolaemia.

Abstract: N-propargyl-piperonylamine of the structural formula: ##STR1## and its addition salts are useful in reducing appetite, fatigue, and aggression.

Abstract: The invention provides the benzhydrylsulphinyl derivatives of the formula:(C.sub.6 H.sub.5).sub.2 CH--SO--(CH.sub.2).sub.n --R Iwhere n is 1, 2 or 3 and R is C(.dbd.O)NHOH, C(.dbd.NH)NH.sub.2, C(.dbd.NH)NHOH, 2-imidazolin-2-yl or NR.sub.1 R.sub.2 (where R.sub.1 is H or C.sub.1 -C.sub.3 -alkyl and R.sub.2 is H, C.sub.1 -C.sub.3 -alkyl, or CH.sub.2 CH.sub.2 OH, and R.sub.1 and R.sub.2 considered together can form, with the nitrogen atom to which they are bonded, a N-heterocyclic group of 5 to 7 ring members, which can be substituted and can contain a second hetero-atom such as O and N), and their addition salts. These products are useful in therapy for treating disturbances of the central nervous system.

Abstract: Esters of acetylsalicylic acid with polyols of the formula:HO -- A -- S -- (CH.sub.2).sub.n -- S -- A -- OH (I)in which n is an integer of from 5 to 15 and each A group represents a C.sub.2 -C.sub.6 linear or branched hydrocarbyl group which can contain an --OH group are particularly useful as hypolipidaemic, hypocholesterolaemic, anti-blood clotting and anti-atherosclerosis agents.

Abstract: The invention provides new acetohydroxamic acid derivatives, having interesting properties on the central nervous system, of the formula: R.sub.1 R.sub.2 R.sub.3 C-CO-NHOH, in which R.sub.2 and R.sub.3 are each hydrogen or C.sub.1-6 alkyl, and R.sub.1 is C.sub.1-6 alkyl Z.sub.1 Z.sub.2 N (where Z.sub.1 and Z.sub.2 are each phenyl, substituted phenyl, or cycloalkyl), substituted hydantoinyl, benzhydroxylcarboxamido, Z.sub.3 CH.sub.2 -- (where Z.sub.3 = optionally substituted aryl), Z.sub.4 -A- (where Z.sub.4 is optionally substituted phenyl or naphthyl, and A is --NH--, --N(C.sub.1-4 alkyl)--, --N(C.sub.5-6 cycloalkyl)--, --NHCO--, --N(C.sub.1-4 alkyl)CO--, --N(C.sub.5-6 cycloalkyl)CO--, --CONH--, --CON(C.sub.1-4 alkyl)--, --CON(C.sub.5-6 cycloalkyl)--, --NHCONH--, --N(C.sub.5 H.sub.6)CONH--, or --N(substituted phenyl)CONH--, optionally substituted benzimidazolyl, or an optionally substituted tricyclic radical, and their metal and acid addition salts.

Abstract: The invention provides the benzhydrylsulphinyl derivatives of the formula:(C.sub.6 H.sub.5).sub.2 CH--SO--(CH.sub.2).sub.n --R Iwhere n is 1, 2 or 3 and R is C(.dbd.O)NHOH, C(.dbd.NH)NH.sub.2, C(.dbd.NH)NHOH, 2--.DELTA..sup.2 -imidazolinyl or NR.sub.1 R.sub.2 (where R.sub.1 is H or C.sub.1 --C.sub.3 -alkyl and R.sub.2 is H, C.sub.1 --C.sub.3 -alkyl, or CH.sub.2 CH.sub.2 OH, and R.sub.1 and R.sub.2 considered together can form, with the nitrogen atom to which they are bonded, a N-heterocyclic group of 5 to 7 ring members, which can be substituted and can contain a second hetero-atom such as O and N), and their addition salts. These products are useful in therapy for treating disturbances of the central nervous system.

Abstract: The invention provides the benzhydrylsulphinyl derivatives of the formula:(C.sub.6 H.sub.5).sub.2 CH--SO--(CH.sub.2).sub.n --R Iwhere n is 1, 2 or 3 and R is C(.dbd.O)NHOH, C(.dbd.NH)NH.sub.2, C(.dbd.NH)NHOH, 2-.DELTA..sup.2 -imidazolinyl or NR.sub.1 R.sub.2 (where R.sub.1 is H or C.sub.1 -C.sub.3 -alkyl and R.sub.2 is H, C.sub.1 -C.sub.3 -alkyl, or CH.sub.2 CH.sub.2 OH, and R.sub.1 and R.sub.2 considered together can form, with the nitrogen atom to which they are bonded, a N-heterocyclic group of 5 to 7 ring members, which can be substituted and can contain a second hetero-atom such as O and N), and their addition salts. These products are useful in therapy for treating disturbances of the central nervous system.

Abstract: The present invention concerns as new industrial products, hydroxy-thioalkanes of the formula:Ti Ho--A--S--(CH.sub.2).sub.n --S--A--OHwhere n is an integer from 5 to 15 and A is a straight or branched C.sub.2 -C.sub.6 hydrocarbon chain which may also comprise an OH group.The compounds of formula I are useful in therapeutics, notably as hypolipemiant and hypocholesterolemiant agents.

Abstract: Phenylsulphinyl derivatives of the formula ##STR1## in which R.sub.1 represents hydrogen or one or more identical or different substituents, Alk represents a C.sub.2 -C.sub.4 hydrocarbon radical with a linear or branched chain, and A represents C(=NH)NH.sub.2, C(=NH)NHOH, C(=O)NHOH, or ##STR2## where Z is CH.sub.2 CH.sub.2 or CH.sub.2 CH.sub.2 CH.sub.2 and R is H, CH.sub.2 COOH, CH(CH.sub.3)COOH or C(CH.sub.3).sub.2 COOH, and their addition salts, have interesting therapeutic properties on the central nervous system as anxiolytic agents and/or analgesic and anti-inflammatory agents.

Abstract: 1-[2-(1,4-Benzodioxanyl)methyl]-4-(2-hydroxyethyl)-piperazine hemifumarate and the related compounds of formula: ##SPC1##In which R is hydrogen or alkyl; and A is --CH(CH.sub.3)COOC.sub.2 H.sub.5, --CH.sub.2 CH.sub.2 O(C.sub.6 H.sub.4) (CH.sub.3).sub.2, --CH.sub.2 CH(OH)Ph or --CH.sub.2 CO(C.sub.6 H.sub.3) (OCH.sub.3).sub.3 or A is --Z--OR.sub.1, --CH.sub. 2 CHOR".sub.1 CH.sub. 2 OR'.sub.1, --Z--CO--B or amidino, where Z is a linear or branched divalent hydrocarbon chain of 1 to 3 carbon atoms, R'.sub.1 and R".sub.1, which may be indentical or different, are each hydrogen, alkyl, or acyl, B is OH, alkoxy, or a secondary, tertiary or N-heterocyclic amino radical, and R.sub.1 is alkyl, acyl other than nicotinoyl or 3,4,5-trimethoxy-benzoyl, or, when R is other than hydrogen, hydrogen, and its acid addition salts, are useful in therapy as vasodilators and .alpha.-blocking agents.

Abstract: 1-[2-(1,4-benzodioxanyl)methyl]-4-(2-hydroxyethyl)-piperazine hemifumarate and the related compounds of formula: ##SPC1##In which R is hydrogen or alkyl; and A is --Z--OR.sub.1, --CH.sub.2 CHOR".sub.1 CH.sub.2 OR'.sub.1, --Z--CO--B or amidino, where Z is a linear or branched divalent hydrocarbon chain of 1 to 3 carbon atoms, R'.sub.1 and R".sub.1, which may be identical or different, are each hydrogen, alkyl, or acyl, B is OH, alkoxy, or a secondary, tertiary or N-heterocyclic amino radical, and R.sub.1 is alkyl, acyl other than nicotinoyl or 3,4,5-trimethoxy-benzoyl, or, when R is other than hydrogen, hydrogen, and its acid addition salts, are useful in therapy as vasodilators and .alpha.-blocking agents.