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:
Sep. 29, 1987
Filed:
Oct. 09, 1986
Angelo Storni, Allschwil, CH;
Alex Meisels, Basel, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Compounds of the class of 2,2'-azines of 2,4-thiazolidinediones which are substituted in at least one of the 3-positions by allyl, 1-methylallyl, 2-methylallyl or 2-propynyl and in at least one of the 5-positions by hydroxy, and may further contain methyl groups in the remaining 3-position and in the 5-positions, and the corresponding tautomeric 1-[[4-oxo-2-thiazolidinylidene]amino]-5-hydroxy-2-thiohydantoins and 5,5'-dihydroxy-2,2'-dithio-1,1'-bihydantoins have valuable pharmacological properties. In particular, they inhibit the growth of tumours, while their toxicity is low in comparison with their tumour-inhibiting effectiveness. A specific embodiment is the 2,2'-azine of 3-(2-methylallyl)-5-methyl-2,4-thiazolidinedione and of 3-methyl-5-hydroxy-2,4-thiazolidinedione.