Patents by Inventor Vittorino Servadio

Vittorino Servadio has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6297237
    Abstract: A process for the preparation of compounds of formula (I), wherein R is C2-C20 linear or branched alkyl, C3-C7 cycloalkyl, phenyl or benzyl, which can optionally be substituted by C1-C4 alkyl, halogen or C1-C4 alkoxy group, said process comprising: a) oxidation of eserine with hydrogen peroxide in the presence of a base and subsequent hydrolysis to geneseroline, without isolating the intermediate geneserine; b) acylation of geneseroline with an isocyanate of formula R—N═C═O, wherein R is as defined above, in the presence of a basic catalyst; c) optional transformation into a pharmaceutically acceptable salt. Compounds of formula (I) wherein R is a phenyl or benzyl, which can be optionally substituted by alkyl, halogen or alkoxy, are selective, potent brain anticholinesterase inhibitors.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: October 2, 2001
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Paolo Ventura, Vittorino Servadio, Roberto Pighi, Fausto Pivetti, Bluetta Salsi, Maurizio Delcanale, Gabriele Amari, Claudio Pietra
  • Patent number: 6034277
    Abstract: A process, and variations thereof, for the preparation of 5,6-dihydroxy-2-amino-1,2,3,4-tetrahydronaphthalene derivatives of formula (I), wherein R.sub.1, R.sub.2, R.sub.3 can independently be hydrogen or lower alkyl.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: March 7, 2000
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Paolo Ventura, Vittorino Servadio, Maurizio Del Canale, Renato De Fanti, Gabriele Amari
  • Patent number: 5936125
    Abstract: A process, and variations thereof, for the preparation of 5,6-dihydroxy-2-amino-1,2,3,4-tetrahydronaphthalene derivatives of formula (I), wherein R.sub.1, R.sub.2, R.sub.3 can independently be hydrogen or lower alkyl.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: August 10, 1999
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Paolo Ventura, Vittorino Servadio, Maurizio Del Canale, Renato De Fanti, Gabriele Amari
  • Patent number: 5710336
    Abstract: A process, and variations thereof, for the preparation of 5,6-dihydroxy-2-amino-1,2,3,4-tetrahydronaphthalene derivatives of formula (I), wherein R.sub.1, R.sub.2, R.sub.3 can independently be hydrogen or lower alkyl.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: January 20, 1998
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Paolo Ventura, Vittorino Servadio, Maurizio Del Canale, Renato De Fanti, Gabriele Amari
  • Patent number: 5708144
    Abstract: A process for purifying natural pulmonary surfactant by dispersing animal lung tissue on an inert carrier and extracting with a supercritical fluid.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: January 13, 1998
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Paolo Ventura, Roberto Pighi, Vittorino Servadio, Walter Recchia
  • Patent number: 5538968
    Abstract: Geneserine homologs of formula I ##STR1## in which R is a straight or branched C.sub.2 -C.sub.20 alkyl group, a C.sub.3 -C.sub.7 cycloalkyl group, an unsubstituted phenyl or benzyl group, or a phenyl or benzyl group substituted by a C.sub.1 -C.sub.4 alkyl group, a halogen atom or a C.sub.1 -C.sub.4 alkoxy group, or a salt with an organic or inorganic non-toxic acid, exhibit anticholinesterase activity and may be useful in the treatment of Alzheimer disease and other conditions due to a neurological deficiency.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: July 23, 1996
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Maurizio Del Canale, Vittorino Servadio, Eleonora Ghidini
  • Patent number: 5162573
    Abstract: 2-Propyl-2-pentanoic acid (valproic acid) esters and (E)-2-propyl-2-pentenoic acid [(E)-2-valproenoic acid] esters surprisingly proved to have valuable properties, in that they show anticonvulsive and antiepileptic activities comparable with those of valproic acid, as well as an improved bioavailability and a markedly reduced toxicity.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: November 10, 1992
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Vittorino Servadio, Flavio Villani
  • Patent number: 5096929
    Abstract: 5,6-Dimethoxy-2-[2-(4-hydroxyphenyl)-2-hydroxy-2-methylethyl]amino- 1,2,3,4-tetrahydronaphthalene has inotropic and vasodilating activities and therefore can be used in the treatment of cardiocirculatory failure. The compound can be in the form of a single stereoisomer or as a mixture of two or more stereoisomers.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: March 17, 1992
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Stefano Bongrani, Maurizio Delcanale, Vittorino Servadio
  • Patent number: 5066652
    Abstract: Compounds of the formulaHet-S(O).sub.n -CH.sub.2 -A (I)wherein Het is a substituted imidazolyl, purinyl, thieno-imidazolyl or imidazo-pyridyl group, n is 0 or 1, A is one of the following structures: ##STR1## and their physiologically acceptable salts have antiulcer and gastric acid antisecretory activity.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: November 19, 1991
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Vittorino Servadio, Roberta Razzetti
  • Patent number: 5049566
    Abstract: Imidazo[4,5-c] pyridine compounds and physiologically acceptable salts thereof having antiulcer and gastric acid antisecretory activities and pharmaceutical compositions containing them.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: September 17, 1991
    Assignee: Chiesi Farmaceutic S.p.A.
    Inventors: Paolo Chiesi, Vittorino Servadio, Roberta Rassetti
  • Patent number: 4956384
    Abstract: Isosorbide 2- and 5-mononitrate esters with aliphatic, aryl, or cynnamic acids or diacids, or with alkylcarbonyloxy substituents optionally containing an isosorbide 2- or 5-mononitrate group, are useful in human therapy.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: September 11, 1990
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Vittorino Servadio
  • Patent number: 4775676
    Abstract: Compounds of formula I ##STR1## wherein A represents: a saturated or unsaturated acyclic residue;a saturated cyclic or heterocyclic residue;a saturated or unsaturated bicyclic residue; and R represents OH, a C.sub.1 -C.sub.4 alkoxy group or a straight or heterocycle aminoresidue; R.sub.1 represents hydrogen, an alkyl group or an aromatic or heteroaromatic residue.Compounds I are endowed with valuable therapeutic characteristics.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: October 4, 1988
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Vittorino Servadio
  • Patent number: 4690944
    Abstract: Compounds of formula I ##STR1## wherein A represents: a saturated cyclic or heterocyclic aromatic or heteroaromatic residue;a saturated or unsaturated bicyclic residue; and R represents H, an alkyl, cycloalkyl or alkoxyalkyl group.Compounds I are endowed with valuable therapeutic characteristics.
    Type: Grant
    Filed: February 19, 1986
    Date of Patent: September 1, 1987
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Paolo Chiesi, Vittorino Servadio
  • Patent number: 4603123
    Abstract: New inclusion compounds of 4-hydroxy-2-methyl-N-2-pyridyl-2H-1,2-benzothiazine-3-carboxyamide-1,1-dio xide with .alpha., .beta. or .gamma. cyclodextrins, obtained by reaction of said cyclodextrins and said 4-hydroxy-2-methyl-N-2-pyridyl-2H-1,2-benzothiazine-3-carboxyamide-1,1-dio xide in aqueous or water/organic solutions are described. The ratio between 4-hydroxy-2-methyl-N-2-pyridyl-2H-1,2-benzothiazine-1,1-dioxide and the cyclodextrins is comprised between 1:10 and 1:1; preferably, it is about 1:2.5.The compounds of the invention possess high antiinflammatory and analgesic activities, together with a considerably reduced gastrolesive action.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: July 29, 1986
    Assignee: Chiesi Farmaceutici, S.p.A.
    Inventors: Paolo Chiesi, Vittorino Servadio