Ciba-geigy Corporation

Novartis Ag

Other

Hans Allgeier

Yves Auberson

Andre Gagneux

Roland Heckendorn

Manuel Koller

Joachim Nozulak

Henri Mattes

Wolfgang Froestl

David Orain

Johanne Renaud

Christof Angst

Philipp Floersheim

Silvio Ofner

David Carcache

Jörg Kallen

Christel Guibourdenche

Guido Bold

Rudolf Duthaler

Siem Jacob Veenstra

Michel Biollaz

John G Dingwall

Nicholas David Cosford

Joerg Kallen

Antonio Togni

Pierre Acklin

Derek E Brundish

Daniel Wallach

Graham E Fagg

Nicolas Soldermann

Fabrizio Gasparini

Edwin Carl Johnson

Robert Moretti

Erich Schmid

Rainer Kuhn

G&ouml;n&uuml;l Veli&ccedil;elebi

Vittorio Rasetti

Mark Andrew Varney

The present invention relates to 1H-Quinazoline-2,4-diones of formula (I) wherein Rand Rare as defined in the specification, their preparation, their use as pharmaceuticals, and pharmaceutical compositions containing them. Further, intermediates for the manufacture of compounds of formula (I) are and combinations comprising compounds of formula (I) are disclosed.

1H-quinazoline-2,4-diones processes for their production, pharmaceutical compositions, and treatment for epilepsy

The present invention relates to 1H-Quinazoline-2,4-dione derivatives of formula(I) wherein the substituents are defined as in the specification, their preparation, their use as pharmaceuticals, and pharmaceutical compositions containing them.

Quinazoline derivatives

N-(2,4-dioxo-6-(tetrahydrofuran-2-yl)-7-(trifluoromethyl)-1,4-dihydro-2H-quinazolin-3-yl)methanesulfonamide

Substituted 1H-quinazoline-2,4-diones useful as AMPA receptor ligands

Pyridine derivatives

Substituted aminoalkane phosphonic acids

2,3-dioxo-1,2,3,4-tetrahydro-quinoxalinyl derivatives

3-Heteroaliphatyl- and 3-hetero(aryl)aliphatyl-2(1H)quinolone derivatives of formula I ##STR1## wherein the radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently of the others hydrogen, an aliphatic hydrocarbon radical, free or etherified hydroxy, mercapto or etherified and/or oxidised mercapto, unsubstituted or aliphaticaliy substituted amino, nitro, free or esterified or amidated carboxy, cyano, free or amidated sulfamoyl, halogen or trifluoromethyl, X is oxy or optionally oxidised thio, A is a divalent aliphatic radical and R.sub.5 is an optionally partially hydrogenated aryl or heteroaryl radical that is unsubstituted or substituted by aliphatic or araliphatic hydrocarbon radicals, by free or etherified hydroxy, by mercapto or etherified and/or oxidised mercapto, by unsubstituted or aliphatically substituted amino, by aliphatic acyl, by free or esterified or amidated carboxy, by cyano, by free or amidated sulfamoyl, by halogen and/or by trifluoromethyl; free or etherified hydroxymethyl; cyano; or free or esterified or amidated carboxy, and tautomers and/or salts thereof, have antagonistic properties with respect to excitatory amino acids and can be used for the treatment of pathological conditions that are responsive to glycine-antagonistic blocking of NMDA-sensitive receptors.

3-heteroaliphatyl- and 3-hetero(aryl)aliphatyl-2(1H)-quinolone

Substituted 2-aminoalk-3-enoic acid derivative of formula I ##STR1## wherein R.sub.1 is an aliphatic hydrocarbon radical that is substituted by hydroxy, and R.sub.2 is free or esterified carboxy, and their salts exhibit NMDA-antagonistic properties and are useful as active ingredients of anticonvulsive medicaments.

4-substituted 2-aminoalk-3-enoic

Substituted 2-aminoalk-3-enoic acid derivative of formula I ##STR1## wherein R.sub.1 is an aliphatic hydrocarbon radical that is substituted by optionally acylated or aliphatically or araliphatically etherified hydroxy, by halogen, by optionally acylated and/or aliphatically substituted amino or by an aza-, diaza-, azoxa- or oxa-cycloaliphatic radical, or is an oxacycloaliphatic hydrocarbon radical bonded via a carbon atom, or is an optionally aliphatically N-substituted or N-acylated azacycloaliphatic hydrocarbon radical, and R.sub.2 is free or esterified carboxy, and their salts exhibit NMDA-antagonistic properties and are useful as active ingredients of anticonvulsive medicaments.

4-substituted 2-aminoalk-3-enoic acids

The invention relates to unsaturated amino acids of the formula I ##STR1## in which R.sup.1 represents hydroxy or etherified hydroxy, R.sup.2 represents hydrogen, alkyl, hydroxy or etherified hydroxy, R.sup.3 represents hydrogen, alkyl, haloalkyl, hydroxyalkyl, lower alkoxyalkyl, arylalkyl, lower alkenyl, halogen or aryl, R.sup.4 represents hydrogen, alkyl or aryl, R.sup.5 represents hydrogen or alkyl, R.sup.6 represents carboxy or esterified or amidated carboxy, R.sup.7 represents amino or amino substituted by alkyl or acyl, A represents unsubstituted or alkyl-substituted .alpha.,.omega.-alkylene having from 1 to 3 carbon atoms or represents a bond, and B represents methylene or a bond, with the proviso that A is other than a bond when B represents a bond, and salts thereof. They can be manufactured, for example, in accordance with the Michaelis-Arbuzov reaction and can be used as pharmacologically active substances.

Unsaturated amino acids

Unsaturated aminodicarboxylic acid derivatives of formula I ##STR1## wherein A is a divalent aliphatic hydrocarbon radical containing 2 carbon atoms and R.sub.1 and R.sub.2 are each independently of the other free or esterified carboxyl groups, and salts thereof, have a pronounced and selective antagonistic action against N-methyl-D-aspartic acid (NMDA)-sensitive excitatory amino acid receptors. These compounds are prepared, for example, by converting, in a formula of formula II ##STR2## wherein Z.sub.1 and Z.sub.2 are hydroxy or protected hydroxy and Z.sub.3 is protected amino, Z.sub.3 into amino and, if present, converting protected hydroxyl groups Z.sub.1 and/or Z.sub.2 into hydroxy and, if desired, converting a resultant compound into another compound of formula I, resolving a resultant mixture of isomers into the individual components and separating the desired preferred isomer and/or converting a resultant free compound into a salt or a resultant salt into the corresponding free compound.

Unsaturated aminodicarboxylic acid derivatives

The invention relates to novel 9H-purine derivatives, especially to the novel substituted 9-benzyl-9H-purines of the general formula ##STR1## in which Ph is a phenyl radical substituted by halogen, R.sub.1 is hydrogen or a free amino group or an amino group that is substituted aliphatically, cycloaliphatically, cycloaliphatically-aliphatically and/or by acyl, and R.sub.2 is halogen, lower alkoxy, lower alkyl, a free amino group, or an amino group that is substituted aliphatically, cycloaliphatically, cycloaliphatically-aliphatically and/or by acyl, with the proviso that R.sub.2 is other than halogen when Ph is 2-fluorophenyl or 2,5- or 2,6-difluorophenyl and R.sub.1 is a radical of the formula --N(R.sub.11)(R.sub.12) (Ia) in which either R.sub.11 is hydrogen, methyl or ethyl and R.sub.12 is hydrogen, methyl, hydroxymethyl, ethyl, n-propyl, isopropyl, cyclopropyl, cyclopenthyl or cyclopropylmethyl, or R.sub.11 is hydrogen and R.sub.12 is methoxymethyl, and with the further proviso that R.sub.2 is other than chlorine when Ph is 3-chlorophenyl, 4-chlorophenyl or 3,4-dichlorophenyl and R.sub.1 is N,N-dimethylamino, and to the novel compounds of formula I in which Ph is 2-fluorophenyl or 2,6-difluorophenyl, R.sub.1 is N-methylamino or N,N-dimethylamino and R.sub.2 is chlorine, and to the salts thereof in each case. These compounds and the salts thereof can be used as pharmaceutical active ingredients and can be manufactured in a manner known per se.

Anticonvulsive substituted-9-benzyl-9H-purines

The invention relates to aralkyl-4H-1,2,4-triazole derivatives, especially 5-phenyl-lower alkyl-4H-1,2,4-triazole-3-carboxamides of the formula ##STR1## in which Ph represents phenyl substituted by lower alkyl, halogen and/or by trifluoromethyl, alk represents lower alkylidene, R.sub.1 is hydrogen or lower alkyl, and R.sub.2 represents carbamoyl that is unsubstituted or is substituted by lower alkyl or by lower alkanoyl, and their salts and, as the case may be, their tautomers and the salts thereof. These compounds can be used as pharmaceutical active ingredients.

Aralkyl-4H-1,2,4-triazole derivatives

Growing community of inventors

Loerrach, Germany

Hans Allgeier