Synonyms: A-Homo-4-oxacarda-1,14-dienolide,7-hydroxy-4a,4a,8-trimethyl-3-oxo-, (5a,7a,13a,17a,20S)-; 3H-Cyclopenta[5,6]naphth[2,1-c]oxepin-3-one,1,5a,5b,6,7,7a,8,9,10b,11,12,12a-dodecahydro-11-hydroxy-1,1,5a,7a,10b-pentamethyl-8-(tetrahydro-5-oxo-3-furanyl)-,[5aR-[5aa,5bb,7ab,8b(S*),10ba,11b,12ab]]-; Tricoccin S13