Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masayuki Kitagawa0
Kazuya Okamoto0
Date of Patent
February 24, 2009
0Patent Application Number
105326700
Date Filed
October 29, 2003
0Patent Primary Examiner
Patent abstract
It is intended to provide water-soluble derivative of camptothecins which are excellent in therapeutic effect and suitable for chemotherapy for cancer. Namely, a water-soluble high-molecular weight derivative of camptothencins being excellent in sustained-release which is obtained by ester-bonding a carboxylic acid group of a polyethylene glycol-polycarboxylic acid polymer to a phenolic hydroxyl group of phenolic camptothencins.
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