rac-1,4,4a,8a-tetrahydro-6,7-dimethoxy-4aα-methyl-8aα-((all-E)-3',7',11',15',19'-pentamethylicosa-2',6',10',14',18'-pentaenyl)-1α,4α-methanonaphthalin-5,8-dion

2,3-二甲氧基-5-甲基-1,4-苯醌

2,3-二甲氧基-5-甲基-1,4-苯二酚

2,3,4,5-四甲氧基甲苯

rac-6,7-dichloro-1,4,4a,8,8aα-tetrahydro-4aα-methyl-1α,4α-methanonaphthalin-5,8-dion