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- W2053100848 abstract "Petrocortynes A-C (1–3) and petrosiacetylenes A-D (4–7), novel long-chain polyacetylenes and related metabolites have been isolated from a sponge of the genus Petrosia. Compounds 1 and 2 are C46 linear tetraacetylenes structurally related to petroformynes while 3 possesses an unusual γ-pyrone ring formed by an oxidative cyclization of a diacetylenic carbinol functionality. Compounds 4–7 are highly symmetric C30 linear polyacetylenes in that 6 and 7 were isolated as unseparable mixtures of diastereomers. The structures of these compounds have been elucidated by combined chemical and spectral methods. Absolute stereochemistry has been determined by the modified Mosher's method. These compounds exhibited significant brine-shrimp lethality, RNA-cleaving activity, and/or moderate inhibitory activity against PLA2 and Na+/K+ ATPase." @default.
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- W2053100848 title "Petrocortynes and petrosiacetylenes, novel polyacetylenes from a sponge of the genus Petrosia" @default.
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- W2053100848 doi "https://doi.org/10.1016/s0040-4020(97)10290-3" @default.
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