2,3,5-trimethyl-6-(2-methyl-2-nitropropyl)cyclohexa-2,5-diene-1,4-dione

dimethyl 2-(2-methylprop-1-enyl)propanedioate

3-Isopropyl-2,2-dimethyl-cyclopropane-1,1-dicarboxylic acid dimethyl ester

dimethyl 2-(2,4-dimethyl-2-nitropentan-3-yl)malonate

methyl 1-cyano-2,2,3-trimethylcyclopropane-1-carboxylate