Cisplatin complex and preparation method thereof

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United States of America Patent

PATENT NO 9629923
SERIAL NO

14434731

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Abstract

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A CDDP complex is formed by complexation of CDDP and a polymer having a structure of Formula (I). The CDDP complex has good biocompatibility and is degradable. A side chain of the polymer is grafted with polyethylene glycol, which gives the CDDP complex good dissolvability. When dissolved in an aqueous medium, the CDDP is protected by a hydrophilic polyethylene glycol chain segment and a hydrophobic amino acid chain segment, which can effectively avoid a sudden release of the CDDP due to the influence of the blood circulation system after intravenous injection, thus improving the stability of the CDDP complex. A carboxyl group contained in the CDDP complex has pH value sensitivity and tends to be deprotonated in a low pH environment, which is advantageous for promoting the release of a drug, and improving the efficiency of the drug.

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Patent Owner(s)

Patent OwnerAddress
CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCE5625 RENMIN STREET CHANGCHUN JILIN 130022

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Xuesi Changchun, CN 7 19
Li, Mingqiang Changchun, CN 17 639
Song, Wantong Changchun, CN 2 0
Tang, Zhaohui Changchun, CN 42 547
Yu, Haiyang Changchun, CN 75 97
Zuang, Xiuli Changchun, CN 1 0

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