Continental Pharma Incorporated

G.d. Searle & Company

Continental Pharma S.a.

Midit, Societe Fiduciaire

Georges E Lambelin

Joseph L Roba

Claude L Gillet

Paul J Niebes

Michel R Franz

William R Van Dorsser

Daniel M Matagne

Alexis A Cordi

Andras B Vincze

Etienne T Hanon

Michel Snyers

Philippe R Bovy

Romeo Roncucci

Hugo J Gorissen

Michel P Snyers

Robert G Cavalier

Guy D Jacques

Philippe M Janssens De Varebeke

Andreas B Vincze

Alain V Polat

Etienne P Hanon

Alexis H Cordi

Mark A Martens

Romeo R Roncucci

Piedad Calderon

Albert Lenaers

Nguyen Phuc Buu-Hoi

The invention relates to spirohydantoins of the formula I ##STR1## where R.sub.1 and R.sub.2 are defined hereinbelow. Also disclosed are methods of preparation, pharmaceutical compositions containing at least one of these compounds, and methods of using said compounds for treatment and prevention of complications of diabetes and galactosemia.

Spiro-hydantoins as aldose reductase inhibitors

A compound of the formula: ##STR1## wherein X.sup.1, X.sup.2, Y.sup.1 and Y.sup.2, whether or not identical are hydrogen, a halogen such as fluoro, chloro or bromo, linear or branched alkyl of 1 to 3 carbon atoms, linear or branched alkoxy of 1 to 3 carbon atoms, carboxy, alkoxy-carbonyl of 1 to 3 carbon atoms or phenyl;

.alpha..sub.2 -blocking derivatives of imidazole

A glycinamide derivative of the general formula I: ##STR1## wherein: R is a linear or ramified alkyl group C.sub.5 -C.sub.18, a linear or ramified alkenyl group C.sub.5, C.sub.6, C.sub.7, C.sub.8, C.sub.9, C.sub.10, C.sub.11, C.sub.12, C.sub.13, C.sub.14, C.sub.15, C.sub.16, C.sub.17 or C.sub.18, a linear or ramified alkynyl group C.sub.4 -C.sub.10, a linear or ramified acyl group C.sub.4 -C.sub.18, a linear or ramified alkyl group C.sub.1 -C.sub.10, substituted by a phenoxy group, by a hydroxy radical, by an acetoxy radical, by a carboxy radical, by a linear or ramified alkoxycarbonyl group C.sub.1 -C.sub.4, by a carbonyl radical, by a carboxaldehyde group, by an acetal or cetal group, by one or more phenyl groups, by one or more phenyl groups substituted by a halogen atom such as fluorine, chlorine or bromine,

Derivatives of glycinamide, their preparation and their use

This invention relates to heterocyclic amino-alcohol derivatives of the formula ##STR1## These compounds are useful as antihypertensives.

Heterocyclic amino-alcohol derivatives

2-Pentanoylaminoacetic acid and pharmaceutically suitable salts thereof are claimed for use as pharmaceuticals. The compounds are useful in producing an effect on the central nervous system, especially in the treatment of various forms of epilepsy, of disninesiae, of parkinsonism, of memory troubles, of psychic troubles and of cerebral anoxia.

Derivatives of 2-aminoacetic acid

Method for the preparation of micronized p-butoxyphenylacetylhydroxamic acid, comprising dissolving the p-butoxyphenylacetylhydroxamic acid in a basic solution of salifying agent and then precipitating it in an acid solution in the presence of a surface-active agent.

Method for the preparation of p-butoxyphenylacetyl-hydroxamic acid in

Drug for treating affections provoked by a too high histamine level in the body, for treating affections of the gastroduodenal mucosa and allergic affections, comprising the reaction product of (+)-catechin with at least one basic amino-acid, which is more particularly selected from the group consisting of L-lysine, L-arginine and L-ornithine.

Drug for treating affections provoked by a too high histamine level, of

The new amino-alcohol derivatives according to the invention have the formula: ##STR1## wherein: (a) R.sub.1 is hydrogen, an alkylthio C.sub.1 -C.sub.5 radical, a cycloalkylthio C.sub.5 -C.sub.6 radical, an alkoxy C.sub.1 -C.sub.5 radical, a cycloalkyloxy C.sub.5 -C.sub.6 radical, an alkyl C.sub.1 -C.sub.5 radical, a cycloalkyl C.sub.5 -C.sub.6 radical or a halogen atom;

Amino-alcohol derivatives

A derivative of benzimidazole of the general formula I: ##STR1## wherein: R.sub.1 represents a linear or ramified alkyl radical C.sub.1,C.sub.2,C.sub.3,C.sub.4,C.sub.5,C.sub.6,C.sub.7,C.sub.8,C.sub.9,C. sub.10,C.sub.11,C.sub.12,C.sub.13,C.sub.14,C.sub.15, C.sub.16,C.sub.17 or C.sub.18, a cycloalkyl radical C.sub.3,C.sub.4,C.sub.5,C.sub.6,C.sub.7 or C.sub.8, a linear or ramified alkyl radical C.sub.1,C.sub.2,C.sub.3,C.sub.4 or C.sub.5 substituted by one or more radicals selected from the group comprising:

Benzimidazole derivatives, their use, and compositions containing these

A salt of (+)-catechin formed of the reaction product of (+)-catechin with at least a basic amino-acid, such as L-lysine and L-arginine; a hydrosoluble double salt is formed by the reaction product of (+)-catechin with a basic amino-acid, such as L-lysine and L-arginine, and another inorganic or organic acid.

Salts of (+)-catechine, their preparation and use, and compositions

A pharmaceutical composition for treating degenerative diseases of the articular cartilage, in particular osteoarthritis and chondromalacia, and of the degenerative processes of the articular cartilage resulting from other diseases, such as rheumatoid arthritis, this composition containing (+) - catechin and/or one of the salts thereof as an active products, said composition being administered orally, rectally, intra-articularly, intravenously or topically.

Pharmaceutical composition and therapeutical method for treating

Amino-alcohols of the formula ##STR1## wherein R.sub.1 represents either a linear or branched chain alkyl radical having 1 to 4 carbon atoms, or a cycloalkyl radical having 5 or 6 carbon atoms; R.sub.2 represents a lower alkyl radical having 1 or 2 carbon atoms; R.sub.3 represents a linear or branched chain alkyl radical having 3 to 10 carbon atoms which radical is optionally substituted by phenyl; R.sub.4 represents hydrogen, or, together with R.sub.3 and the adjacent nitrogen atom, a heterocyclic nucleus of the piperidine type and the corresponding non-toxic salts of said amino-alcohols; preparation of the above and their use as antispasmodic, peripheral vasodilatory and anti-hypertensive agents and as an agent having a protective activity against anoxia of the myocardium.

Alkyl and cycloalkylthiophenylalkylaminoalkanols, their salts and the

The new amino-alcohols according to the invention are represented by the formula ##SPC1## Wherein: R.sub.1 represents a RS, RSO or RSO.sub.2 group in which R is a linear or branched alkyl group (C.sub.1 -C.sub.10), an acetyl radical or hydrogen; R.sub.2 and R.sub.3, which may be identical or different, represent a halogen atom or an alkyl (C.sub.1 -C.sub.3), amino, alkylamino (C.sub.1 -C.sub.4), acylamino, nitro, carboxy, carbalkoxy, trifluoromethyl, alkoxy (C.sub.1 -C.sub.4) or alkylthio (C.sub.1 -C.sub.4) radical; R.sub.4 represents hydrogen or a linear or branched alkyl radical containing 1 - 4 carbon atoms; R.sub.5 and R.sub.6, which may be identical or different, represent hydrogen, a substituted or not, linear or branched alkyl (C.sub.1 -C.sub.16) radical, a cycloalkyl (C.sub.5 -C.sub.6) radical, an alkynyl (C.sub.3 -C.sub.4) radical, an alkenyl (C.sub.3 -C.sub.4) radical or a heterocycle of the kind piperidine, morpholine, pyridine or pyridimine, R.sub.5 and R.sub.6 can also form with adjacent nitrogen atom a heterocyclic radical, substituted or not; one of said R.sub.2 and R.sub.3 can be a hydrogen atom or can be both a hydrogen atom provided that simultaneously R is a lower alkyl (C.sub.1 -C.sub.3) radical in the group RS, R.sub.4 and R.sub.5 are hydrogen atoms and R.sub.6 is an isopropyl or t-butyl radical or if simultaneously R is a methyl radical in the group RSO.sub.2, R.sub.4 and R.sub.5 are hydrogen atoms and R.sub.6 is an isopropyl radical. When R.sub.5 and R.sub.6 represent an alkyl, the latter can be substituted by amino, alkylamino, hydroxy, alkoxy, phenoxy, substituted phenoxy, phenyl, substituted phenyl radical or a heterocycle such as piperidino or morpholino.

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Brussels, Belgium

Georges E Lambelin