The phomoxanthones are a loosely defined class of
natural products. The two founding members of this class are
phomoxanthone A and
phomoxanthone B. Other compounds were later also classified as phomoxanthones, although a unifying nomenclature has not yet been established.[1] The structure of all phomoxanthones is derived from a dimer of two covalently linked tetrahydroxanthones, and they differ mainly in the position of this link as well as in the acetylation status of their hydroxy groups. The phomoxanthones are structurally closely related to other tetrahydroxanthone dimers such as the
secalonic acids and the eumitrins. While most phomoxanthones were discovered in fungi of the genus Phomopsis, most notably in the species Phomopsis longicolla, some have also been found in Penicillium sp.[2]
12,12′,13,13′-tetradeacetylphomoxanthone B (deacetylphomoxanthone B)[10][4]
Further reading
Masters, Kye-Simeon; Bräse, Stefan (2012). "Xanthones from Fungi, Lichens, and Bacteria: The Natural Products and Their Synthesis". Chemical Reviews. 112 (7): 3717–76.
doi:
10.1021/cr100446h.
PMID22617028.
^
abcdIsaka, M; Jaturapat, A; Rukseree, K; Danwisetkanjana, K; Tanticharoen, M; Thebtaranonth, Y (2001). "Phomoxanthones a and B, novel xanthone dimers from the endophytic fungus Phomopsis species". Journal of Natural Products. 64 (8): 1015–8.
doi:
10.1021/np010006h.
PMID11520217.
^
abcWagenaar, Melissa M; Clardy, Jon (2001). "Dicerandrols, New Antibiotic and Cytotoxic Dimers Produced by the Fungus Phomopsis longicolla Isolated from an Endangered Mint". Journal of Natural Products. 64 (8): 1006–9.
doi:
10.1021/np010020u.
PMID11520215.