Patents by Inventor Fulvio L. Piselli

Fulvio L. Piselli 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).

  • Process for the preparation of Diltiazem
    Patent number: 5495013
    Abstract: A process for the preparation of Diltiazem of formula (I) ##STR1## starting from the corresponding benzothiazepine and carried out throughout a 11 the steps in a single solvent.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: February 27, 1996
    Assignee: Profarmaco Nobel S.r.l.
    Inventors: Fulvio L. Piselli, Piermarino Boschi, Claudio Navoni
  • Process for the preparation of an optically active benzothiazepinone
    Patent number: 5013834
    Abstract: A process for the optical resolution of 2-hydroxy-3-(4-methoxyphenyl)-3-(2-acetylaminophenylthio)-propionic acid sodium salt by seeding of a supersaturated solution of said salt with one of the enantiomers.
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: May 7, 1991
    Assignee: Industria Chimica Profarmaco S. p. A.
    Inventor: Fulvio L. Piselli
  • Process for the preparation of 1-alkyl-3-carboxy-4-cinnolones
    Patent number: 4956460
    Abstract: A process for the preparation of 1-alkyl-3-carboxy-4-cinnolones of formula I ##STR1## wherein R and R.sub.1 are electron donor groups and R.sub.3 is an alkyl group, starting from an amine of formula II ##STR2## which is subjected to the following transformations; (1) diazotation;(2) coupling with a cyanoacetic ester;(3) alkylation of the arylhydrazone obtained in (2);(4) hydrolysis of the ester and conversion into acyl chloride;(5) intramolecular cyclization;(6) hydrolysis of the nitrile residue.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: September 11, 1990
    Assignee: Industria Chimica Profarmaco S.p.A.
    Inventors: Raffaello Fusco, Fulvio L. Piselli, Pier M. Boschi
  • Process for the optical resolution of a racemic acid
    Patent number: 4931587
    Abstract: A process for the optical resolution of 2-hydroxy-3-(4-methoxyphenyl)-3-(2-acetylaminophenylthio)-propionic acid sodium salt by seeding of a supersaturated solution of said salt with one of the enantiomers.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: June 5, 1990
    Assignee: Industria Chimica Profarmaco S.p.A.
    Inventor: Fulvio L. Piselli
  • Process for the optical resolution of 2-(6-methoxy-2-naphthyl)propionic acid
    Patent number: 4865770
    Abstract: A process for the optical resolution of 2-(6-methoxy-2-naphthyl)propionic acid by seeding a supersaturated solution of the ethylamine salt of said acid.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: September 12, 1989
    Assignee: Industria Chemica Profarmaco S.p.A.
    Inventor: Fulvio L. Piselli