Patents by Inventor Marisa Berti

Marisa Berti 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 preparing 4-desoxy-thiazolo[5,4-c]rifamycin derivatives
    Patent number: 4234485
    Abstract: Novel 4-desoxy-thiazole[5,4-c]rifamycin derivatives of formula I ##STR1## wherein R stands for a group --OR.sub.1, --NR.sub.2 R.sub.3 or --NHCOR.sub.4 wherein R.sub.1 represents alkyl, alkenyl, alkynyl, cycloalkyl, aryl or aralkyl, R.sub.2 and R.sub.3 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl and aralkyl or R.sub.2 and R.sub.3 taken together with the adjacent nitrogen atom may represent a 5 to 7 membered heterocyclic ring and R.sub.4 is a radical selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, aryl and aralkyl; R.sub.5 is hydrogen or acetyl; and a process for preparing them.The novel compounds have an antibacterial utility.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: November 18, 1980
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Renato Cricchio, Marisa Berti
  • 4-Desoxy-thiazolo[5,4-c]rifamycin derivatives and their use as antimicrobial agents
    Patent number: 4212873
    Abstract: Novel 4-desoxy-thiazolo[5,4-c]rifamycin derivatives of formula I ##STR1## wherein R stands for a group --OR.sub.1, --NR.sub.2 R.sub.3 or --NHCOR.sub.4 wherein R.sub.1 represents alkyl, alkenyl, alkynyl, cycloalkyl, aryl or aralkyl, R.sub.2 and R.sub.3 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl and aralkyl or R.sub.2 and R.sub.3 taken together with the adjacent nitrogen atom may represent a 5 to 7 membered heterocyclic ring and R.sub.4 is a radical selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, aryl and aralkyl; R.sub.5 is hydrogen or acetyl; and a process for preparing them.The novel compounds have an antibacterial utility.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: July 15, 1980
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Renato Cricchio, Marisa Berti