The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 1984
Filed:
Aug. 19, 1982
Henning Heinemann, Hanover, DE;
Daniel Jasserand, Paris, FR;
Wolfgang Milkowski, Burgdorf, DE;
Dimitri Yavordios, Chatillon sur Chalaronne, FR;
Horst Zeugner, Hanover, DE;
Kali-Chemie Pharma GmbH, Hanover, DE;
Abstract
New 1-phenylindazol-3-one compounds are described which have the formula I ##STR1## where R.sub.1 is a hydrogen or halogen atom, or a lower alkyl, lower alkoxy or trifluoromethyl radical, R.sub.2 is a hydrogen or halogen atom, or a lower alkyl or lower alkoxy radical, R.sub.3 is a hydrogen or halogen atom, or a lower alkyl, lower alkoxy or trifluoromethyl radical, R.sub.4 is a hydrogen or halogen, atom, or a lower alkyl or lower alkoxy radical, Z is an alkylene radical with 2 to 6 carbon atoms and R.sub.5 is an unsubstituted or substituted pyridyl radical, a thienyl radical or an unsubstituted or substituted phenyl radical. The compounds have pharmacological actions, for example antiallergic actions. Methods of preparing these compounds are described as well as intermediates useful in these methods. Pharmaceutical compositions containing the compounds are also described.