Patents Assigned to PRODESIN (Productos Esteve Internacional S.A.)
  • 4-Tert. butyl-3'-chlorodiphenylamine derivatives, their preparation and their application as anti-histaminic drugs
    Patent number: 4216214
    Abstract: Novel derivatives of formula (I) and the pharmaceutically acceptable salts thereof. ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each is a lower alkyl group, or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached, form a saturated heterocyclic group optionally containing, in addition to the said nitrogen atom, a second hetero atom, a process for the preparation thereof, and their use as anti-histamine anti "H.sub.2 " agents.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: August 5, 1980
    Assignee: PRODESIN (Productos Esteve Internacional S.A.)
    Inventors: Antonio Esteve Subirana, Jose Esteve Soler