Ucf1 compounds derivatives thereof and processes for their preparation
CA 2041237 C · Owner: Okabe, Masami · Inventors: Okabe, Masami; Takiguchi, Toshimitsu; Ikuina, Yoji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds UCF1 and derivatives thereof exhibit anti-bacterial and anti-tumour activities and may be used for the preparation of anti-bacterial and antitumour agents. Compounds UCF1 may be produced by fermentation of a microorganism of the genus Streptomyces capable of producing compounds UCF1, preferably Streptomyces sp. UOF1 (FERM BP-2844) and recovering the desired compounds from the cultured broth. The compounds UCF1 have the formula (I), wherein R represents either, or, The compounds may be oxidised to obtain derivatives of formula, which exhibit similar pharmacological activities.
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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
- Filed April 25, 1991 and granted July 16, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2013.
- 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.