1	8T9	Preaustinoid a3	1.000
2	8SX	Preaustinoid a1	0.941
3	8T0	Preaustinoid a2	0.941
4	8TC	Berkeleyone a	0.757
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	0.757