Higginsianins A and B, Two Diterpenoid α-Pyrones Produced by Colletotrichum higginsianum, with in Vitro Cytostatic Activity
Two new diterpenoid α-pyrones, named higginsianins A (1) and B (2), were isolated from the
mycelium of the fungus Colletotrichum higginsianum grown in liquid culture. They were
characterized as 3-[5a, 9b-dimethyl-7-methylene-2-(2-methylpropenyl)
dodecahydronaphtho [2, 1-b] furan-6-ylmethyl]-4-hydroxy-5, 6-dimethylpyran-2-one and 4-
hydroxy-3-[6-hydroxy-5, 8a-dimethyl-2-methylene-5-(4-methylpent-3-enyl)
decahydronaphthalen-1-ylmethyl]-5, 6-dimethylpyran-2-one, respectively, by using NMR …
mycelium of the fungus Colletotrichum higginsianum grown in liquid culture. They were
characterized as 3-[5a, 9b-dimethyl-7-methylene-2-(2-methylpropenyl)
dodecahydronaphtho [2, 1-b] furan-6-ylmethyl]-4-hydroxy-5, 6-dimethylpyran-2-one and 4-
hydroxy-3-[6-hydroxy-5, 8a-dimethyl-2-methylene-5-(4-methylpent-3-enyl)
decahydronaphthalen-1-ylmethyl]-5, 6-dimethylpyran-2-one, respectively, by using NMR …
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