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Serving leading biopharmaceutical companies globally:

Argus Health
Farmers Insurance

Generated: November 23, 2017

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Details for Patent: 4,966,891

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Summary for Patent: 4,966,891

Title: Fluorocytidine derivatives
Abstract:The novel 5'-deoxy-5-fluorocytidine derivatives of formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are hydrogen or an easily hydrolyzable radical under physiological conditions, with the proviso that, at least one or R.sup.1, R.sup.2 and R.sup.3 is an easily hydrolyzable radical under physiological conditions, as well as hydrates of solvates of these compounds have antitumor properties. They can be prepared from compounds of formula I, wherein R.sup.1 is hydrogen or an amino-protecting radical and R.sup.2 and R.sup.3 are hydrogen or a hydroxy-protecting radical or taken together are a cyclic hydroxy-protecting radical.
Inventor(s): Fujiu; Morio (Chigasaki, JP), Ishitsuka; Hideo (Yokohama, JP), Miwa; Masanori (Kamakura, JP), Umeda; Isao (Yokohama, JP), Yokose; Kazuteru (Urayasu, JP)
Assignee: Hoffmann-La Roche Inc. (Nutley, NJ)
Application Number:07/268,437
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;

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Foreign Priority and PCT Information for Patent: 4,966,891

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
87116926.4Nov 17, 1987

International Patent Family for Patent: 4,966,891

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany3854148► Subscribe
Algeria1270► Subscribe
Denmark170893► Subscribe
Denmark640388► Subscribe
Germany10199027► Subscribe
Hungary199866► Subscribe
European Patent Office0316704► SubscribeSPC/GB01/015United Kingdom► Subscribe
European Patent Office0316704► SubscribeC300045Netherlands► Subscribe
European Patent Office0316704► Subscribe2001C/021Belgium► Subscribe
European Patent Office0316704► Subscribe14/2001Austria► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

Cantor Fitzgerald
Chinese Patent Office
Johnson and Johnson
US Department of Justice
US Army

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