Lichexanthone
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Lichexanthone is an organic compound in the structural class of chemicals known as xanthones. Lichexanthone was first isolated and identified by Japanese chemists from a species of leafy lichen in the
UV-illuminated thallus and apothecia of the crustose lichen Ochrolechia africana; the yellowish colour results from the fluorescence of lichexanthone.
Part of a proposed biosynthetic pathway for lichexanthone-type lichen xanthones, depicting an aldol cyclization step followed by a cyclodehydration, which would lead to norlichexanthone.
Parmelina quercina is one of the first lichens from which lichexanthone was isolated.
Minquartia guianensis 1zz
Lichen product
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Lichen products, also known as lichen substances, are organic compounds produced by a lichen. Specifically, they are secondary metabolites. Lichen products are represented in several different chemica
Lichexanthone
…are also biologically active. Lichexanthone was first reported by Japanese chemists Yasuhiko Asahina and Hisasi Nogami in 1942. They isolated the lichen product from Parmelia formosana (known today as Hypotrachyna osseoalba), a lichen that is widespread in Asia. Another early publication described its isolation…
Lobaria pulmonaria, a lichen that contains lichen products such as stictic acid and gyrophoric acid.