methyl 2-formyl-5-methoxy-4-methyl-3-(3-methyl-2-butenyloxy)benzoate

6-methoxy-5-methyl-4-(3-methyl-2-butenyloxy)-phthalide

5-methoxy-4-methyl-3-(3-methyl-2-butenyloxy)-1,2-benzenedimethanol diacetate