Abstract
Porphyrins and chlorins containing acetylacetone residues in the peripheral substituents [-CH(Me)CHAc2] are converted under alkaline conditions into the corresponding deacetylated compounds with [-CH(Me)CH2Ac] residues. Reduction of the latter as acids using sodium borohydride gives the corresponding alcohols and, after esterification, their acetates with branched peripheral [-CH(Me)CH2CH(OAc)Me] substituents. Porphyrins and chlorins with such substituents in water-soluble form may hold interest as new photosensitizers in photodynamic cancer therapy.
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Reshetnickov, A.V., Babushkina, T.A., Kirillova, G.V. et al. Porphyrins. 39. Synthesis and Chemical Transformations of Porphyrins and Chlorins with 2-Acetyl-1-methyl-3-oxobutyl Substituents. Chemistry of Heterocyclic Compounds 37, 191–201 (2001). https://doi.org/10.1023/A:1017563415470
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DOI: https://doi.org/10.1023/A:1017563415470