(1S)-2.2.3t-trimethyl-1r-methylcarbamoyl-cyclopentane-carboxylic acid-(3c)

2,2,3-trimethyl-3-methylcarbamoyl-cyclopentanecarboxylic acid

(1R)-4ξ-bromo-1,2,2-trimethyl-cyclopentane-1r,3t-dicarboxylic acid

对硝基甲苯

(+/-)-1,2,2-trimethyl-cis-3-carbamoylcyclopentanecarboxylic acid