Patents Assigned to Elf Sanofi
  • Patent number: 5455343
    Abstract: This polysaccharide consists of repeating units which are composed of a backbone, comprising 2 radicals of D-mannose, 2 of D-glucose, 1 of D-galactose, 1 of D-glucuronic acid, 1 of D-xylose, 1 of L-lyxose and 1 of L-fucose, on which pyruvic acid groups may be grafted and of which certain of the saccharide hydroxyl groups are esterified as acetate. It can be employed as a viscosity agent for thickening and gelling.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: October 3, 1995
    Assignee: Elf Sanofi
    Inventors: Thierry Fontaine, Bernard Fournet, Marie France Planard
  • Patent number: 5446138
    Abstract: Recombinant DNA which codes for a protein with endochitinase activity or for a precursor thereof, comprising the sequence (a1) (SEQ ID NO. 1).
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: August 29, 1995
    Assignees: Elf Sanofi, Societe Nationale Elf Aquitaine
    Inventors: Pierre-Louis Blaiseu, Richard Legoux, Jean-Jacques Leguay, Michel Schneider
  • Patent number: 5420300
    Abstract: The subject of the invention is 2-(1-bromoethyl)benzo[b]thiophene of formula: ##STR1## as well as a process for the preparation thereof, characterised in that 2-ethylbenzo[b]thiophene is reacted, in a solvent, with a brominating agent in the presence of a free radical initiator, which provides the desired compound, and the use thereof in the preparation of 2-(1-(benzyloxyamino)ethyl)benzo[b]thiophene and of N-hydroxy-N-{1-(benzo[b]thien-2-yl)ethyl}urea.No figure.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: May 30, 1995
    Assignee: Elf Sanofi
    Inventor: Jean-Robert Dormoy
  • Patent number: 5411971
    Abstract: The invention relates to N-alkylenepiperidino compounds of formula ##STR1## as well as their enantiomers, and pharmaceutical compositions containing them that are useful as antagonists of neurokinin receptors in the treatment of substance P- and/or neurokinin-independent pathologies.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: May 2, 1995
    Assignee: Elf Sanofi
    Inventors: Xavier Edmonds-Alt, Serge Martinez, Vincenzo Proietto, Didier Van Broeck
  • Patent number: 5403933
    Abstract: The invention relates to indolizine derivatives of general formula: ##STR1## in which: X denotes an --S or --SO.sub.2 -- group, each of R.sub.1 and R.sub.2, which are identical or different, denotes hydrogen, the methyl or ethyl radical or a halogen atom,R.sub.3 denotes hydrogen or a C.sub.1 -C.sub.4 alkyl radical,R.sub.4 denotes a precursor radical of a carboxyl group,R denotes a C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl or phenyl radical, and their use as intermediates for the preparation of pharmaceutically active aminoalkoxybenzenesulphonylindolizine derivatives.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: April 4, 1995
    Assignee: Elf Sanofi
    Inventors: Jean Gubin, Michel Renard
  • Patent number: 5401855
    Abstract: The subject of the invention is 4-hydroxyphenylthio derivatives of general formula: ##STR1## in which: R.sub.1 and R.sub.2, which are identical or different, each represent hydrogen, a methyl or ethyl radical or a halogen atom,R represents a (C.sub.1 -C.sub.6) alkyl, (C.sub.3 -C.sub.6) cycloalkyl or phenyl radical,R.sub.3 represents hydrogen or a halogen atom, X represents --O--, --S-- or --NR.sub.4 -- in which R.sub.4 represents hydrogen or a (C.sub.1 -C.sub.4) alkyl group, useful as synthetic intermediates, especially for the preparation of aminoalkoxyphenylsulphonyl derivatives which are pharmaceutically active compounds.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: March 28, 1995
    Assignee: Elf Sanofi
    Inventors: Jean Gubin, Henri Inion
  • Patent number: 5384398
    Abstract: The subject of the invention is new high molecular mass N,O-sulphated heparosans consisting of chains or of a mixture of chains having a molecular mass of between 1.5.times.10.sup.4 and 4.0.times.10.sup.6 D, characterized by a repeating disaccharide structure of formula I: ##STR1## in which E represents, in 0 to 80% of the disaccharide units of the said N,O-sulphated heparosan, an acetyl group and, in the remaining disaccharide units, a sulphate group and optionally a hydrogen atom, G represents a hydrogen atom and a sulphate group, and the pharmaceutically acceptable salts of the said N,O-sulphated heparosans.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: January 24, 1995
    Assignee: Elf Sanofi
    Inventors: Jean-Claude Lormeau, Bruno Chevallier, Marc L. V. Salome
  • Patent number: 5380736
    Abstract: Heterocyclic substituted 2-acylamino-5-thiazoles, their preparation and pharmaceutical compositions containing them.A 2-Acylaminothiazole of formula: ##STR1## in which R.sub.1 is H, an alkyl or a substituted alkyl; R.sub.IV is a cycloalkyl, an aromatic group such as phenyl or a heterocyclic group which are unsubstituted or substituted; R.sub.V is a substituted alkyl, a substituted carboxy such as an ester or an amide; or R.sub.IV and R.sub.V together represent a phenoxyalkylene group which may be substituted on the phenyl; and Z is a heterocyclic e.g. indolyl group; or a salt of compound (I).
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: January 10, 1995
    Assignee: Elf Sanofi
    Inventors: Robert Boigegrain, Roger Brodin, Danielle Gully, Jean-Charles Molimard, Dominique Olliero
  • Patent number: 5360799
    Abstract: Compounds of formula ##STR1## in which R.sub.1 represents OH, (C.sub.1 -C.sub.12)alkyl, (C.sub.1 -C.sub.12)alkoxy, benzyloxy, benzyl, phenyl, (C.sub.1 -C.sub.4)alkylNZ.sub.1 Z.sub.2 or NZ.sub.1 Z.sub.2 ; R.sub.2 represents OH, SH, (C.sub.1 -C.sub.4)alkoxy, (C.sub.1 -C.sub.4)alkylthio or NZ.sub.1 Z.sub.2 ; R.sub.3 represents H, (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkylthio, (C.sub.1 -C.sub.4)alkoxy, phenyl or benzyl; A represents N and R represents H or (C.sub.1 -C.sub.4)alkyl which can be substituted by phenyl or NZ.sub.1 Z.sub.2 ; B represents phenyl which is coupled to the pyridyl ring and is optionally substituted by one or more groups chosen from halo, (C.sub.1 -C.sub.6)alkyl, (C.sub.1 -C.sub.6)alkoxy, CF.sub.3, CH.sub.2 NZ.sub.1 Z.sub.2 or NZ.sub.1 Z.sub.2 ; and Z.sub.1 and Z.sub.2 represent, independently of each other, H, (C.sub.1 -C.sub.6) alkyl, formyl or benzyl, or they form with the nitrogen atom to which they are attached an optionally substituted saturated heterocycle and their salts.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: November 1, 1994
    Assignee: Elf Sanofi
    Inventors: Andre Bachy, Laurent Fraisse, Peter Keane, Etienne Mendes, Jean-Claude Vernieres, Jacques Simiand
  • Patent number: 5352788
    Abstract: The invention relates to processes for preparing N-substituted heterocyclic compounds of formula (I) ##STR1## wherein the substituents are as described in the specification, and to intermediates. The compounds are useful for antagonizing angiotensin II.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: October 4, 1994
    Assignee: Elf Sanofi
    Inventors: Claude Bernhart, Jean-Claude Breliere, Jacques Clement, Dino Nisato, Pierre Perreault, Claude Muneaux, Yvette Muneaux
  • Patent number: 5344657
    Abstract: The microbeads are composed of a core containing the active ingredient and a microporous membrane, insoluble in aqueous medium, consisting of a film-forming polymer, a plasticizer and a filling material.The membrane has a thickness such that diltiazem is released in vitro at an approximately constant rate for at least 6 hours after a latent period of less than one hour.The active ingredient can be intimately mixed with the core or included in a polyvinyl pyrrolidone layer coating an inert grain.The sustained-release microbeads are formed by application to the core of a dispersion of the constituents of the membrane in a solvent and evaporation of the solvent.The pharmaceutical compositions consist of capsules containing the microbeads. They are administered orally one or twice per day, depending on the dose, for the treatment of angina or hypertension.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: September 6, 1994
    Assignee: Elf Sanofi
    Inventor: Henri Desmolin
  • Patent number: 5340820
    Abstract: Cycloaminoalkoxyphenyl derivatives useful for the treatment of certain pathological syndromes of the cardiovascular system and ocular diseases of formula: in which:B represents a --S--, --SO-- or --SO.sub.2 -- group,R.sub.1 and R.sub.2, which are identical or different, each denotes hydrogen, a methyl or ethyl radical or a halogen such as chlorine, bromine or iodine,A denotes a straight or linear alkylene radical, having from 2 to 5 carbon atoms or a 2-hydroxypropylene radical in which the hydroxy is optionally substituted by a lower alkyl radical,Am denotes a group: ##STR1## in which: R.sub.3, R'.sub.3 and R".sub.3, which are identical or different, each denotes hydrogen, a halogen atom such as chlorine or bromine, a lower alkyl group or a lower alkoxy group, R.sub.4 denotes hydrogen or an alkyl radical,n and m, identical or different, each denotes 0, 1, 2 or 3,Cy represents a group of formula: ##STR2## pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: August 23, 1994
    Assignee: Elf Sanofi
    Inventors: Jean Gubin, Pierre Chatelain, Jean Lucchetti
  • Patent number: 5340822
    Abstract: The invention relates to polycyclic amine compounds of formula (I) ##STR1## where Y. m. Ar', n, p, Q, T, q and Z are defined herein. The invention also relates to methods of making the compounds of formula (I) and pharmaceutical compositions which contain the compounds of formula (I). The inventive compounds are useful as neurokinin receptor antagonists, and are useful for the treatment of any substance P-dependent and neurokinin-dependent pathological condition.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: August 23, 1994
    Assignee: Elf Sanofi
    Inventors: Xavier Emonds-Alt, Patrick Gueule, Vincenzo Proietto, Pierre Goulaouic, deceased, by Marie Bousquet, heir, by Catherine M. L. Goulaouic, heir
  • Patent number: 5338755
    Abstract: The invention relates to N-sulfonyl derivatives of formulae (I)" and (I)' ##STR1## and to pharmaceutical compositions in which they are present. The compounds have an affinity for the vasopressin and ocytocin receptors.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: August 16, 1994
    Assignee: Elf Sanofi
    Inventors: Jean Wagnon, Paul de Cointet, Dino Nisato, Claude Plouzane, Claudine Serradeil-Legal, Bernard Tonnerre
  • Patent number: 5320731
    Abstract: The iontophoresis device for transcutaneous administration of the active principle to the subject comprises electrodes, at least one of which is a consumable electrode formed of an electrochemically consumable material associated either with an insulating support or with a particular electronically conducting support. The single consumable electrode or one of the consumable electrodes holds a limited quantity of electrochemically consumable material, the said limited quantity being chosen so that the quantity of electricity necessary for its electrochemical consumption corresponds to the quantity of electricity necessary for administering the given total quantity of active principle to the subject and the active principle is present at the start of the operation in a quantity greater than the said given total quantity.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: June 14, 1994
    Assignees: Societe Nationale Elf Aquitaine, Elf Sanofi
    Inventors: Daniel Muller, Jean-Pierre Simonin
  • Patent number: 5314889
    Abstract: A 2-Acylaminothiazole of formula: ##STR1## in which R.sub.1 is H, an alkyl or a substituted alkyl; R.sub.IV is a cycloalkyl, an aromatic group such as phenyl or a heterocyclic group which are unsubstituted or substituted; R.sub.V is a substituted alkyl, a substituted carboxy such as an ester or an amide; or R.sub.IV and R.sub.V together represent a phenoxyalkylene group which may be substituted on the phenyl; and Z is a heterocyclic e.g. indolyl group; or a salt of compound (I).
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: May 24, 1994
    Assignee: Elf Sanofi
    Inventors: Robert Boigegrain, Roger Brodin, Danielle Gully, Jean-Charles Molimard, Dominique Olliero
  • Patent number: 5314876
    Abstract: The subject of the invention is new high molecular mass N,O-sulphated heparosans consisting of chains or of a mixture of chains having a molecular mass of between 1.5.times.10.sup.4 and 4.0.times.10.sup.6 D, characterised by a repeating disaccharide structure of formula I: ##STR1## in which E represents, in 0 to 80% of the disaccharide units of the said N,O-sulphated heparosan, an acetyl group and, in the remaining disaccharide units, a sulphate group and optionally a hydrogen atom, G represents a hydrogen atom and a sulphate group, and the pharmaceutically acceptable salts of the said N,O-sulphated heparosans.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: May 24, 1994
    Assignee: Elf Sanofi
    Inventors: Jean-Claude Lormeau, Bruno Chevallier, Marc L. V. Salome
  • Patent number: 5312961
    Abstract: The invention relates to 2-amino-7-hydroxytetralin carboxyalkyl ethers of formula ##STR1## wherein Alk represents a straight or branched (C.sub.3 -C.sub.5)alkylene group, and R is hydrogen or (C.sub.1 -C.sub.4)alkyl, useful as starting materials in the synthesis of 7-substituted phenylethanolaminotetralins of formula (XII) ##STR2## wherein X represents hydrogen, halogen, (C.sub.1 -C.sub.4)alkyl, or trifluoromethyl which are useful as spasmolytics and anti-glaucoma agents.The new 7-substituted phenylethanolaminotetralins (XII) as well as the intermediates in the preparation of the compounds (I), the N-protected 2-amino-7-hydroxytetralin carboxyalkyl ethers, are also claimed.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: May 17, 1994
    Assignee: Elf Sanofi
    Inventors: Umberto Guzzi, Roberto Cecchi, Luciano Manara
  • Patent number: 5300648
    Abstract: The invention relates to intermediates in the production of dialkylenepiperidino compounds and their enantiomers and their use for the treatment of substance p- and neurokinin-dependent pathology.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: April 5, 1994
    Assignee: Societe Anonyme: Elf Sanofi
    Inventors: Xavier Emonds-Alt, Isabelle Grossriether, Vincenzo Proietto, Didier Van Broeck
  • Patent number: 5296354
    Abstract: The present invention relates to a kit for the specific assay of Angiotension II, comprising:the anti-Ang II antibody,a solution of labelled Ang II,solutions containing the Ang II standards at known and increasing concentrations,the requisite washing solution(s),a solution of anti-Ang III antibody, the said antibody exhibiting a cross-reaction with Ang II of less than 10% and preferably less than 5%,and, optionally, a solution of anti-Ang I antibody and/or a solution of anti-pentapeptide antibody and/or a solution of anti-hexapeptide antibody, the said antibodies exhibiting a cross-reaction with Ang II of less than 10% and preferably less than 5%.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: March 22, 1994
    Assignee: Elf Sanofi
    Inventors: Dominique Simon, Jean Marchand, Gabriel Badouaille, Bernard Romestand, Jean-Alain Fehrentz