Cinerols, Nitrogenous Meroterpenoids From The Marine Sponge Dysidea Cinerea
JOURNAL OF NATURAL PRODUCTS(2019)
Abstract
Eleven new nitrogenous meroterpenoids, cinerols A-K (1-11), were isolated from the marine sponge Dysidea cinerea collected in the South China Sea, and their structures were determined by detailed spectroscopic analysis. Cinerols A (1) and B (2) feature a rare SH-pyrrolo[1,2a]-benzimidazole moiety, while cinerols C-G (3-7) are examples of rare meroterpene benzoxazoles. The cinerols are noncytotoxic to human melanoma A375 cells at the concentration of 32 mu M; however, selected cinerols exhibit moderate inhibitory activity against one or more of protein tyrosine phosphatase 1B, ATP-citrate lyase, and SH2 domain-containing phosphatase-1 with IC50 values of 2.8-27 mu M.
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Key words
nitrogenous meroterpenoids
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