2-chloro-4-(2-hydroxypropan-2-yl)nicotinic acid

4,6-Dichloro-pyrimidine-5-carboxylic acid 1,1-dimethyl-prop-2-ynyl ester

2-甲氧基烟酸

丙酮

4,5,5-三甲基-2-氧代-2,5-二氢-3-呋喃甲腈