2,3,7,7a-tetrahydro-3-hydroxy-7-methyl-2-(prop-1-en-1-yl)-5H-furo(3,4-b)pyran-5-one

theissenolactones B and C are the (2R,3R,7R,7aR)- and (2R,3R,7S,7aR)-isomers, respectively; has antineoplastic activity; isolated from Theissenia cinerea; structure in first source

Source last updated 2026-05-24T15:29:37.214Z