Oxidation of cis ‐Diamminediacetato Pt II with Hydrogen Peroxide Can Give Rise to Two Isomeric Pt IV Products

Autor: Dan Gibson, D. Khattib, Hana Kostrhunova, Viktor Brabec, M. Ishan, Subhendu Karmakar
Rok vydání: 2020
Předmět:
Zdroj: Chemistry – A European Journal. 26:9475-9480
ISSN: 1521-3765
0947-6539
DOI: 10.1002/chem.202001472
Popis: The oxidation of cis-[Pt(NH3 )2 (OAc)2 ] with H2 O2 yields a mixture of two isomers: ctc-[Pt(NH3 )2 (OH)2 (OAc)2 ] and ctc-[Pt(NH3 )2 (OH)(OAc)(OH)(OAc)]. Following modification with 4-phenylbutyric (PhB) anhydride, two isomers were separated and characterized; the symmetric ctc-[Pt(NH3 )2 (PhB)2 (OAc)2 ] (1) and the nonsymmetric ctc-[Pt(NH3 )2 (PhB)(OAc)(PhB)(OAc)] (2). They differ in their log P values and despite having similar cellular uptake and similar DNA platination levels, the symmetric ctc-[Pt(NH3 )2 (OH)2 (OAc)2 ] is more than 4-fold more potent than the nonsymmetric isomer in a panel of 4 cancer cell lines.
Databáze: OpenAIRE
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