甲基柏木酮

2,3,3,7-tetramethyl-11-methylene-12-oxatetracyclo(6.4.1.02,10.04,8)tridecane

8-acetyl-11-hydroxy-2,6,6,7-tetramethyltricyclo(5.2.2.01,5)undecane

2,2,3-trimethylbutanedioic acid

3-methyl-1,2,3-butanetricarboxylic acid