11alpha-Hydroxy-6alpha-methoxy-6,19-epoxy-6,7-seco-ent-kaur-16-en-15-one-7,20-olide 3-buten-2-one, 4-[(1S,4R,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]hept-1-yl]-, (3E)- 6-Epiangustifolin InChI=1/C21H28O6/c1-11-12-7-13(22)14-20(10-27-18(24)21(14,8-12)16(11)23)6-4-5-19(2)9-26-17(25-3)15(19)20/h12-15,17,22H,1,4-10H2,2-3H3/t12-,13-,14+,15-,17?,19+,20-,21+/m1/s rel-(3aR,4R,4a'S,5'R,7'S,7aR,9a'S)-5'-hydroxy-3-methoxy-7a-methyl-8'-methylenedecahydro-1H-spiro[2-benzofuran-4,4'-[7,9a]methanocyclohepta[c]pyran]-1',9'(4a'H)-dione