1	8T0	Preaustinoid a2	1.000
2	8SX	Preaustinoid a1	1.000
3	8T9	Preaustinoid a3	0.941
4	8TC	Berkeleyone a	0.857
5	H3X	Methyl (3'~{a}~{R},4'~{S},5'~{S},5~{a}~{S},6~{S},7~{S},9~{a}~{R})-1,1,3'~{a},4',5~{a},7,7'-heptamethyl-3,6'-bis(oxidanylidene)spiro[4,5,7,8,9,9~{a}-hexahydrobenzo[C]oxepine-6,2'-4,5-dihydro-3~{H}-1-benzofuran]-5'-carboxylate	0.806
6	7WX	Methyl (5s,7s,8s,9s,10s,13r,14r,16s)-4,4,8,10,12,13,16-heptamethyl-7,16-bis(oxidanyl)-3,6,15,17-tetrakis(oxidanylidene)-2,5,7,9-tetrahydro-1h-cyclopenta[a]phenanthrene-14-carboxylate	0.718