6 7-dihydro-1 1 2 3 3-pentamethyl-4(5h)-indanone July 8, 2019 16 32 64 128 2 3-dihydro-5-methyl-1h-indene 2 3-dihydro-3 5-dihydroxy-6-methyl-4h-pyran-4-one 3 7-dihydro-1 3 7-trimethyl-1h-purine-2 6-dione
