Derivatives of morpholinyl daunorubicin and morpholinyl doxorubicin, and analogues thereof
CA 1233816 A · Owner: Sri International · Inventors: Acton, Edward M.; Mosher, Carol W.; Tong, George L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A group of new daunorubicin and doxorubicin derivatives having antitumor activity of the structure : wherein R is -CO-CH3 or -CHOH-CH3, -CO-CH2OH or -CHOH-CH2OH; hydroxy; a 1 to 3 carbon alkyl; a 1 to 3 carbon terminal hydroxyalkyl; 2 to 7 carbon organic acid-based esters and diesters of -CO-CH2OH, -CHOH-CH2OH and -CHOH-CH3, and 13-ketimine derivatives of -CO-CH3 or -CO-CH2OH; Y is usually methoxy (-OCH3) but can also be hydrogen X is =O or -NH; R' and R" together are a hydrogen and a hydroxy (that is, either R' or R" is hydroxy with the other hydrogen, both are hydrogens or R' is methoxy and R" is hydrogen), and A is selected from cyano (-C?N) and hydrogen as set forth above. Z is selected …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 8, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 8, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.