Patents by Inventor Achille Umani-Ronchi

Achille Umani-Ronchi 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 drospirenone
    Patent number: 8383809
    Abstract: A process for the preparation of Drospirenone (I) according to the scheme (A) wherein the substituent R is defined in the description. The process improves the product yield and purity by reducing the formation of undesired side-products and is particularly convenient for industrial-scale manufacturing.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: February 26, 2013
    Assignee: Newchem S.p.A.
    Inventors: Erika Andriolo, Mauro Montorsi, Stefano Rancan, Edoardo Mariani, Marco Bandini, Michele Contento, Achille Umani-Ronchi
  • PROCESS FOR THE PREPARATION OF DROSPIRENONE
    Publication number: 20100222571
    Abstract: A process for the preparation of Drospirenone (I) according to the scheme (A) wherein the substituent R is defined in the description. The process improves the product yield and purity by reducing the formation of undesired side-products and is particularly convenient for industrial-scale manufacturing.
    Type: Application
    Filed: July 21, 2008
    Publication date: September 2, 2010
    Applicant: NEWCHEM S.P.A.
    Inventors: Erika Andriolo, Mauro Montorsi, Stefano Rancan, Edoardo Mariani, Marco Bandini, Michele Contento, Achille Umani-Ronchi
  • 17.Beta-(alpha-hydroxy)-esters of androstanes as intermediates for the preparation of 17.beta-fluorinated-androstane esters
    Publication number: 20060116359
    Abstract: Process for the preparation of polyhalogenated steroids, in particular of androstanic fluoro derivatives corticosteroids by means of the formation of new androstanic S-hydroxy alkyl or aralkyl-17-carbothioate intermediates.
    Type: Application
    Filed: December 18, 2003
    Publication date: June 1, 2006
    Inventors: Gianfranco Cainelli, Achille Umani Ronchi, Sergio Sandri, Michele Contento, Giuseppe Fortunato, Marco Da Col, Maria Boriani, Stefano Da Col
  • Process for the preparation of 6alpha-fluoro steroids by isomerisation of 6beta-fluorosteroids
    Publication number: 20050192437
    Abstract: The process for the preparation of 6?-fluoro steroids, comprising the reaction of the corresponding 6?-fluoro steroids, or of 6?/6? isomeric mixtures with an organic base having a diazo iminic group, in a suitably selected organic solvent, is described.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 1, 2005
    Inventors: Gianfranco Cainelli, Achille Umani-Ronchi, Sergio Sandri, Michele Contento, Marco Da Col, Maria Boriani, Stefano Da Col
  • Isomerisation of 6&bgr;-fluorosteroids into the corresponding 6&agr;-fluoro derivatives
    Patent number: 6369218
    Abstract: Described herein is the isomerisation process of 6&bgr;-fluorosteroids into the corresponding pharmacologically active 6&agr;-fluoro derivatives, comprising the reaction of 6&bgr;-fluorosteroids, or 6&agr;/6&bgr; isomeric mixtures, with an organic base containing a diazoimino group in a suitable organic solvent.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: April 9, 2002
    Assignee: Farmabios S.r.L
    Inventors: Gianfranco Cainelli, Achille Umani-Ronchi, Michele Contento, Sergio Sandri, Marco Da Col
  • Process for the preparation of a thiazoline-azetidinone
    Patent number: 5721360
    Abstract: The present invention refers to process for the preparation of a tiazoline-azetidinone of formula I ##STR1## which comprises N-protecting in position 1 of (3S,4S)-3-phenylace tamido-4-acetoxy-azetidin-2-one, converting the product thus obtained into the corresponding thioamide and subsequently ciclyzing and deprotecting.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: February 24, 1998
    Assignee: Biochimica OPS Spa
    Inventors: Gianfranco Cainelli, Achille Umani Ronchi, Michele Contento, Mauro Panunzio, Sergio Sandri, Marco Da Col, Leone Dall'Asta
  • Process for the preparation of halogenated .beta.-lactam compounds
    Patent number: 5532353
    Abstract: There is described the preparation of halogenated .beta.-lactam derivatives by introduction of a chlorine atom in the 3-position of the cephem nucleus starting from a 3-sulfonyloxycephem. Such starting materials are reacted with a chlorine ions donor in a basic medium.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: July 2, 1996
    Assignee: Biochimica Opos SpA
    Inventors: Marco Da Col, Leone Dall'Asta, Irene Resta, Gianfranco Cainelli, Michele Contento, Mauro Panunzio, Achille Umani Ronchi
  • 3.beta.-Hydroxy-18.beta.-olean-9-en-30-oic acids
    Patent number: 4173648
    Abstract: 3.beta.-Hydroxy-18.beta.-olean-9-en-30-oic acids having anti-ulcer activity of the formula ##STR1## compositions containing the same and process for their preparation.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: November 6, 1979
    Assignee: I.S.F. SpA
    Inventors: Giorgio Pifferi, Achille Umani-Ronchi, Carlo Farina, Afro Gamba