Two New Sesquiterpenes from the Marine Fungus Eutypella scoparia FS26 from the South China Sea

A new monocyclofarnesane-type sesquiterpene, 3,7,10-trihydroxy-6,11-cyclofarnes-1-ene (1), and a new acorane-type sesquiterpene, 8-(hydroxymethyl)-1-(2-hydroxy-1-methylethyl)-4-methylspiro[4.5]dec-8-en-7-ol (2), were isolated from the culture of Eutypella scoparia FS26 from the South China Sea, along with three known terpenes, 3–5. The structures of these compounds were determined by extensive analysis of their spectroscopic data as well as by comparison with literature reports. The isolated compounds 1–5 were evaluated for their cytotoxic activities against the SF-268, MCF-7, and NCI-H460 tumor cell lines.