Patents by Inventor Dario Chiarino

Dario Chiarino 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: 5908937
    Abstract: A process for preparing a compound of formula (I) ##STR1## wherein R is a methylthio, methylsulfoxy, methylsulfonyl or a nitro group; andX4 is --OH, fluorine or --O--SO.sub.2 R6 where R6 is methyl, trifluoromethyl, phenyl or p-methylphenyl which comprises contacting of a compound of formula (III) ##STR2## where R2 is C.sub.1-4 alkyl; and R and X4 have the above mentioned meanings, with a strong base selected from the group consisting of alkali earth metal alcoholates, alkaline earth metal alcoholates, and tertiary amines in an aprotic solvent, to obtain the compound of formula (I).
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: June 1, 1999
    Inventors: Giancarlo Jommi, Dario Chiarino
  • Patent number: 5567844
    Abstract: Replacement with fluorine of the primary hydroxy group of 1-phenyl-2-amino-1,3-propanediol compounds wherein the secondary hydroxy group and the amino group have been suitably protected.The reaction is carried out with an inorganic fluoride in a polyglycol.New oxazoline compounds particularly useful in said process.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: October 22, 1996
    Assignee: Zambon S.p.A.
    Inventors: Giancarlo Jommi, Dario Chiarino, Roberto Pagliarin
  • Patent number: 5556829
    Abstract: Compounds of formula ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and X have the meanings reported in the description, can be used in compositions for agricultural use in particular as herbicides in the defense of useful crops from weeds.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: September 17, 1996
    Assignees: Zambon Group S.p.A., Agrimont S.p.A.
    Inventors: Giovanni Camaggi, Dario Chiarino, Mario Fantucci, Giovanni Meazza
  • Patent number: 5336664
    Abstract: Compounds of formula ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and X have the meanings reported in the description, can be used in compositions for agricultural use in particular as herbicides in the defence of useful crops from weeds.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: August 9, 1994
    Assignees: Zambon Group S.p.A., Agrimont S.r.l.
    Inventors: Giovanni Camaggi, Dario Chiarino, Mario Fantucci, Giovanni Meazza
  • Patent number: 5332835
    Abstract: Replacement with fluorine of the primary hydroxy group of 1-phenyl-2-amino-1,3-propanediol compounds wherein the secundary hydroxy group and the amino group have been suitably protected.The reaction is carried out with an inorganic fluoride in a polyglycol.New oxazoline compounds particularly useful in said-process.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: July 26, 1994
    Assignee: Zambon S.p.A.
    Inventors: Giancarlo Jommi, Dario Chiarino, Roberto Pagliarin
  • Patent number: 5243056
    Abstract: Intermediates of Formula ##STR1## where R is a methylthio, methylsulfoxy, methylsulfonyl or a nitro group; andX1 is hydrogen, 1-6 C alkyl, 1-6 C haloalkyl, 3-6 C cycloalkyl, phenyl or phenylalkyl(1-6 C), where the phenyl ring may be substituted by one or two halogen, 1-3 C alkyl, 1-3 C alkoxy or nitro; orX1 together with X2 is an oxygen atom or an alkylene having from two to five Carbon atoms; orX1 together with X2 and R4 is a chain of formula ##STR2## where p is 3 or 4 and q is 1 or 2; and X2 is hydrogen, 1-6 C alkyl, 1-6 C haloalkyl, 3-6 C cycloalkyl or phenyl which may be substituted by one or two halogen, 1-3 C alkyl, 1-3 C alkoxy or nitro; orX2 together with X1 has the above mentioned meanings; orX2 together with R4 is --(CH.sub.2).sub.m --CH.dbd.CH--; --(CH.sub.2).sub.m --CH.sub.2 --CH.sub.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: September 7, 1993
    Assignee: Zambon S.p.A.
    Inventors: Giancarlo Jommi, Dario Chiarino
  • Patent number: 5157143
    Abstract: A diastereoselective process for the preparation of compounds of formula ##STR1## (wherein R and R.sub.1 have the meanings reported in the specification and the asterisks show the asymmetric carbon atoms) starting from the corresponding N-protected 2-amino-3-aryl-propan-1-ol is described.The compounds of formula I are intermediates useful for the synthesis of pharmacologically active peptides.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: October 20, 1992
    Assignee: Zambon Group S.p.A.
    Inventors: Franco Pellacini, Dario Chiarino, Angelo Carenzi
  • Patent number: 5153328
    Abstract: Intermediates having the formula ##STR1## wherein R is --NO.sub.2, CH.sub.3 S--, CH.sub.3 SO--, or CH.sub.3 SO.sub.2 --, X.sub.1 is hydrogen, alkyl, haloalkyl, (substituted) phenyl or phenylalkyl and Y is F or --OSO.sub.2 R.sub.6 wherein R.sub.6 is methyl, trifluoromethyl, (substituted) phenyl naphthyl or pyridyl are disclosed.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: October 6, 1992
    Assignee: Zambon S.p.A.
    Inventors: Giancarlo Jommi, Dario Chiarino, Roberto Pagliarin
  • Patent number: 5145872
    Abstract: Compounds of the formula ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and n have the meanings reported in the specification, processes for their preparation and pharmaceutical compositions containing them as active ingredient are described.The compounds of formula I are inhibitor of enzymatic systems and they are useful in pharmaceutical field.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: September 8, 1992
    Assignee: Zambon Group, S.p.A.
    Inventors: Dario Chiarino, Angelo Carenzi, Davide Della Bella, Franco Pellacini
  • Patent number: 5142066
    Abstract: A stereoselective process for the preparation of the compounds of formula ##STR1## wherein R, R.sub.1, R.sub.2, a and b have the meanings reported in the specification, is described.The compounds of formula I have a remarkable central analgesic activity and they are useful in the pharmaceutical field.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: August 25, 1992
    Assignee: Zambon Group S.p.A
    Inventors: Mauro Napoletano, Gian C. Grancini, Carlo Veneziani, Dario Chiarino
  • Patent number: 5105009
    Abstract: Intermediates of Formula ##STR1## where R is a methylthio, methylsulfoxy, methylsulfonyl or a nitro group; andX1 is hydrogen, 1-6 C alkyl, 1-6 C haloalkyl, 3-6 C cycloalkyl, phenyl or phenylalkyl(1-6C), where the phenyl ring may be substituted by one or two halogen, 1-3 C alkyl, 1-3 C alkoxy or nitro; orX1 together with X2 is an oxygen atom or an alkylene having from two to five Carbon atoms; orX1 together with X2 and R4 is a chain of formula ##STR2## where p is 3 or 4 and q is 1 or 2; and X2 is hydrogen, 1-6 C alkyl, 1-6 C haloalkyl, 3-6 C cycloalkyl or phenyl which may be substituted by one or two halogen, 1-3 C alkyl, 1-3 C alkoxy or nitro; orX2 together with R4 is ##STR3## where n is 1 or 2; m is 0 or 1; X is hydrogen, halogen, 1-3 C alkyl, 1-3 C alkoxy or nitro; andX3 is hydrogen or --CO--R4 where R4 is hydrogen, 1-6 alkyl, 1-6 C haloalkyl, 3-6 C cycloalkyl, phenylalkyl(1-6C) or phenyl where the phenyl ring may be substituted by one or two halogen, 1-3 alkyl, 1-3 alkoxy or nitro; andX4 is --OH, fluorine,
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: April 14, 1992
    Assignee: Zambon S.p.A.
    Inventors: Giancarlo Jommi, Dario Chiarino
  • Patent number: 5080906
    Abstract: The blood level of orally administered N-acetylcysteine is substantially increased in a mammal when the N-acetylcysteine is administered in combination with tris(hydroxymethyl)aminomethane or a pharmaceutically acceptable salt thereof, in a molar ratio of about 1:0.8 to about l:l.2.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: January 14, 1992
    Assignee: Zambon Group, S.p.A.
    Inventors: Angelo Carenzi, Dario Chiarino, Antonio Longo
  • Patent number: 5028626
    Abstract: Compounds of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and n have the meanings reported in the specification, processes for their preparation and pharmaceutical compositions containing them as active ingredient are described. The compounds of formula I are inhibitors of enzymatic systems and they are useful in pharmaceutical field.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: July 2, 1991
    Assignee: Zambon Group S.p.A.
    Inventors: Dario Chiarino, Angelo Carenzi, Davide Della Bella, Franco Pellacini
  • Patent number: 4988691
    Abstract: Compounds of formula ##STR1## (wherein R, R.sub.1, R.sub.2 and Y have the meanings indicated in the description), a process for the preparation thereof and pharmaceutical compositions containing them as active ingredient are described.Compounds of formula I exhibit anto-serotonin activity.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: January 29, 1991
    Assignee: Zambon Group S.p.A.
    Inventors: Giancarlo Benelli, Angelo Carenzi, Dario Chiarino, Mario Fantucci
  • Patent number: 4985428
    Abstract: Nootropically active isoxazoles which are certain specified derivatives of N-(5-isoxazolecarbonyl)-4 aminobutyric acid.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: January 15, 1991
    Assignee: Zambon Group S.p.A.
    Inventors: Angelo Carenzi, Dario Chiarino, Davide Della Bella, Mauro Napoletano, Alberto Sala
  • Patent number: 4960788
    Abstract: Compounds of formula ##STR1## (wherein R, R.sub.1, R.sub.2, R.sub.3 and n have the meanings reported in the specification), their salts with pharmaceutically acceptable acids, process for their preparation and pharmaceutical compositions containing them are described.The compounds of formula I have a remarkable analgesic activity.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: October 2, 1990
    Assignee: Zambon Group S.p.A.
    Inventors: Angelo Carenzi, Dario Chiarino, Davide Della Bella, Gian Carlo Grancini, Carlo Veneziani
  • Patent number: 4952596
    Abstract: Compounds of the formula ##STR1## wherien R, R.sub.1, R.sub.2 and Y have the meanings mentioned in the description, processes for their preparation and their use in the pharmaceutical field are described.The compounds of formula I are endowed with antipyretic, anti-inflammatory, mucolitic and analgesic activity together with good gastric tolerability.In addition, the compounds of formula I are active in the treatment of ischemic or reperfusion syndromes.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: August 28, 1990
    Assignee: Zambon S.p.A.
    Inventors: Davide Della Bella, Angelo Carenzi, Dario Chiarino, Franco Pellacini
  • Patent number: 4918095
    Abstract: The compound N-[(1S,2R)-fluoromethyl-2-hydroxy-2-(4-methylsulphonyl-phenyl)-ethyl]-2-pr openamide and the derivatives thereof in which the hydroxy in 2 position is esterified by a mono or dicarboxylic acid or by an aminoacid are described.Such compounds have antibiotic activity and are useful in human and veterinary therapy.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: April 17, 1990
    Assignee: Zambon S.p.A.
    Inventors: Davide Della Bella, Giancarlo Jommi, Mario Fantucci, Dario Chiarino
  • Patent number: 4902688
    Abstract: Compounds of formula ##STR1## (wherein R, R.sub.1 and R.sub.2 have the meanings reported in the specification) and their preparation are described.The compounds of formula I have anti-allergic, anti-anaphylactic and anti-arthritic activity and are useful in pharmaceutical field.Compositions for pharmaceutical use containing a compound of formula I as active ingredient are described too.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: February 20, 1990
    Assignee: Zambon Group S.p.A.
    Inventors: Dario Chiarino, Gian Carlo Grancini, Viviana Frigeni, Angelo Carenzi
  • Patent number: 4879068
    Abstract: Preparation of alkyl fluoride by replacement of an aliphatic hydroxy group with fluorine. The reaction is performed by treating a sulfonyl derivative of an aliphatic hydroxy group with an inorganic fluoride in a polyglycol.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: November 7, 1989
    Inventors: Dario Chiarino, Davide Della Bella, Giancarlo Jommi, Domenico Badone, Roberto Pagliarin, Paolo Tavecchia