Tolyporphins L-R (-) have been isolated from a mixed cyanobacterium-microbial culture. The structures of tolyporphins L and M have been revised to four constitutional isomers, isolated as two mixtures of dioxobacteriochlorins (/ and /). In contrast, tolyporphin P () is a fully oxidized tetrapyrrole, while tolyporphins Q and R ( and ) are oxochlorins. X-ray structures are reported for the first time for tolyporphins A (), R (), and E (), revealing unexpected stereochemical variation within the series.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6980383 | PMC |
| http://dx.doi.org/10.1021/acs.joc.9b01928 | DOI Listing |
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Tolyporphins L-R: Unusual Tetrapyrroles from a sp. of Cyanobacterium.
J Org Chem
January 2020
Department of Chemistry , University of Hawaii at Manoa, Honolulu , Hawaii 96822 , United States.
Tolyporphins L-R (-) have been isolated from a mixed cyanobacterium-microbial culture. The structures of tolyporphins L and M have been revised to four constitutional isomers, isolated as two mixtures of dioxobacteriochlorins (/ and /). In contrast, tolyporphin P () is a fully oxidized tetrapyrrole, while tolyporphins Q and R ( and ) are oxochlorins.
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