Patents by Inventor Antonio Tarquini

Antonio Tarquini 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: 7288678
    Abstract: A process for the preparation of terbinafine, comprising the reaction of a compound of formula (II), or a salt thereof, wherein X is a leaving group, with tert-butylacetylene, in the presence of a platinum catalyst
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: October 30, 2007
    Assignee: Dipharma S.p.A.
    Inventors: Antonio Tarquini, Graziano Castaldi, Gianluca Galdi, Pietro Allegrini
  • Patent number: 7238829
    Abstract: A process for obtaining nitroxyalklesters of the 2(S)(6-methoxy-2-naphthyl)-propanoic acid having an enantiomeric excess higher than or equal to 95%, preferably higher than or equal to 98%, characterized in that an halide of the 2-(S)-(6 methoxy-2-naphthyl)propanoic acid of formula A-Hal, wherein A is the acid acyl residue, is reacted in an inert organic solvent with an aliphatic nitroxyalkanol HO—Y—ONO2, wherein Y is a C2-C20 alkylene or a cycloalkylene from 3 to 8 carbon atoms, or an alkylene as defined containing a cycloalkylene as defined, in the presence of an inorganic base.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: July 3, 2007
    Assignee: Nicox S.A.
    Inventors: Francesca Benedini, Erminio Oldani, Graziano Castaldi, Antonio Tarquini
  • Patent number: 7057068
    Abstract: A process for the preparation of 2-[(diphenylmethyl)sulfinyl]acetamide (I) comprising the oxidation of sodium 2-[(diphenylmethyl)sulfenyl]acetate to the corresponding sulfoxide and the derivatization of the latter to amide
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: June 6, 2006
    Assignee: DIPHARMA S.p.A.
    Inventors: Graziano Castaldi, Vittorio Lucchini, Antonio Tarquini
  • Publication number: 20060069164
    Abstract: A process for the preparation of terbinafine, comprising the reaction of a compound of formula (II), or a salt thereof, wherein X is a leaving group, with tert-butylacetylene, in the presence of a platinum catalyst.
    Type: Application
    Filed: November 21, 2003
    Publication date: March 30, 2006
    Inventors: Antonio Tarquini, Graziano Castaldi, Gianluca Galdi, Pietro Allegrini
  • Publication number: 20050277775
    Abstract: A process for the preparation of 4-[1-oxo-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-?,?-dimethylbenzeneacetic acid, useful as an intermediate in the preparation of fexofenadine.
    Type: Application
    Filed: June 14, 2005
    Publication date: December 15, 2005
    Applicant: DIPHARMA S.p.A.
    Inventors: Graziano Castaldi, Giuseppe Barreca, Antonio Tarquini
  • Publication number: 20050154063
    Abstract: A process for the preparation of 2-[(diphenylmethyl)sulfinyl]acetamide (I) comprising the oxidation of sodium 2-[(diphenylmethyl)sulfenyl]acetate to the corresponding sulfoxide and the derivatization of the latter to amide.
    Type: Application
    Filed: April 23, 2003
    Publication date: July 14, 2005
    Inventors: Graziano Castaldi, Vittorio Lucchini, antonio Tarquini
  • Publication number: 20050119339
    Abstract: A process for obtaining nitroxyalklesters of the 2(S)(6-methoxy-2-naphthyl)-propanoic acid having an enantiomeric excess higher than or equal to 95%, preferably higher than or equal to 98%, characterized in that an halide of the 2-(S)-(6 methoxy-2-naphthyl)propanoic acid of formula A-Hal, wherein A is the acid acyl residue, is reacted in an inert orgariic solvent with an aliphatic nitroxyalkanol HO—Y—ONO2, wherein Y is a C2-C20 alkylene or a cycloalkylene from 3 to 8 carbon atoms, or an alkylene as defined containing a cycloalkylene as defined, in the presence of an inorganic base.
    Type: Application
    Filed: July 24, 2003
    Publication date: June 2, 2005
    Inventors: Francesca Benedini, Erminio Oldani, Graziano Castaldi, Antonio Tarquini
  • Patent number: 6700011
    Abstract: A process for obtaining nitroxyalkylesters of the 2-(S)-(6-methoxy-2-naphthyl)-propanoic acid having an enantiomeric excess higher than or equal to 95%, preferably higher than or equal to 98%, characterized in that an halide of the 2-(S)-(6-methoxy-2-naphthyl)-propanoic acid of formula A-Hal, wherein A is the acid acyl residue, is reacted in an inert organic solvent with an aliphatic nitroxyalkanol HO—Y—ONO2, wherein Y is a C2-C20 alkylene or a cycloalkylene from 3 to 8 carbon atoms, or an alkylene as defined containing a cycloalkylene as defined, in the presence of an inorganic base.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: March 2, 2004
    Assignee: Nicox S.A.
    Inventors: Francesca Benedini, Erminio Oldani, Graziano Castaldi, Antonio Tarquini
  • Patent number: 6433214
    Abstract: A process for the preparation of 2-(4-methylphenyl)benzoic acid C1-6alkyl esters by reaction of a sulfonic derivative of formula wherein R is C1-6alkyl and R1 is optionally perfluorinated C1-6alkyl or optionally substituted C1-6aryl, with a 4-methylphenylzinc halide.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: August 13, 2002
    Assignee: Dipharma S.p.A.
    Inventors: Graziano Castaldi, Antonio Tarquini, Renzo Rossi
  • Patent number: 5654476
    Abstract: A process for the preparation of 2,2-dimethyl-5-(2,5-xylyloxy)-valeric acid, which process comprises the reaction of 2,5-dimethylphenol with a compound of formula (II), ##STR1## wherein R is an alkyl, aryl, arylalkyl group and --X is a halogen atom, and the subsequent hydrolysis to compound (I), characterized in that the reaction of compound (II) with 2,5-dimethylphenol is carried out in the absence of solvents and in the presence of an ammonium or quaternary phosphonium salt.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: August 5, 1997
    Assignee: Recordati S.A. Chimical and Pharmaceutical Company
    Inventors: Gianfranco Piccoli, Antonio Tarquini, Giovanni Frare