PHOTOCHEMICAL SYNTHESIS OF ANTITUMOR PLATINUM PYRIMIDINE GREENS ; POSSIBLE CONTRIBUTION OF SINGLET OXYGEN(Communications to the Editor)

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Abstract

A method is given for the selective synthesis of antitumor platinum greens in a reaction of the hydrolysis products of cis- diiododiammineplatinum (II) and nucleosides via visible-light induced oxidation. A role of singlet oxygen in the green formation is indicated by the sensitized reactions with methylene blue and rose bengal and by experimental quenching of singlet oxygen with 1,4-diaza-bicyclooctane(DABCO).

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