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Synthesis and photosensitizing efficacy of isomerically pure bacteriopurpurinimides. | LitMetric

The isomerically pure 3-deacetyl-3-(1-heptyloxy)ethylbacteriopurpurin-N-hexylimides exhibiting long-wavelength absorption near 800 nm were obtained from 3-acetylbacteriopurpurin-N-hexylimide in high stereospecificity by following Corey's synthetic approach. Both heptyl ether derivatives (R- and S-isomers) showed similar in vitro photosensitizing efficacy and limited skin phototoxicity and were found to localize in mitochondria. However, in preliminary in vivo screening, compared to the S-isomer, the corresponding R-isomer produced enhanced in vivo photodynamic therapy efficacy.

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http://dx.doi.org/10.1021/jm049630sDOI Listing

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