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Details for Patent: 5,290,961

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Summary for Patent: 5,290,961

Title: Platinum compound and process of preparing same
Abstract:Disclosed herein are a platinum compound employed as raw material of medicines having carcinostatic effects, and a process of preparing the platinum compound. The platinum compound (I) substantially free from impurities can be prepared through a reaction between the corresponding dihalogen compound and an organic dibasic acid employing an iodine compound utilizing the difference of solubilities between the desired compound and the iodine compounds.
Inventor(s): Okamoto; Koji (Kanagawa, JP), Hoshi; Yuko (Kanagawa, JP), Nakanishi; Chihiro (Kanagawa, JP)
Assignee: Tanaka Kikinzoku Kogyo K.K. (JP)
Application Number:08/003,306
Patent Claim Types:
see list of patent claims
Compound; Process;
Patent PDF download available with subscription

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Foreign Priority and PCT Information for Patent: 5,290,961

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan4-23219Jan 13, 1992

International Patent Family for Patent: 5,290,961

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany69331046<disabled in preview>
European Patent Office0617043<disabled in preview>
Spain2166760<disabled in preview>
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
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