Synonyms: Spiro[furan-3(2H),7'(4'H)-naphtho[2,1-g]quinoline]-4',5,6',10'(4H,6'aH,7'aH)-tetrone,1',4'a,5',8',9',11',12'a,12'b-octahydro-2',5',7'a,12'a-tetramethyl-11'-[(tetrahydro-4-methyl-5-oxo-2-furanyl)methyl]-,[4'aa,5'b,6'ab,7'b,7'ab,11'(2S*,4S*),12'aa,12'bb]-(+)-; Zoanthamide