Synonyms: K 76 terpene;(2R)-3',4',4'aα,5',6',7',8',8'a-Octahydro-4,6'α,7'α-trihydroxy-2'α,5',5',8'aβ-tetramethylspiro[benzofuran-2(3H),1'(2'H)-naphthalene]-6,7-dicarbaldehyde;(2R,2'R,4'aS,6'S,7'R,8'aS)-2',3',4',4'a,5',6',7',8'-Octahydro-4,6',7'-trihydroxy-2',5',5',8'a-tetramethylspiro[benzofuran-2(3H),1'(8'aH)-naphthalene]-6,7-dicarbaldehyde;K-76