3-羟基-2,2-二甲基丁酸

ethyl 3-hydroxy-2,2-dimethylbutanoate

ethyl 4,4-dimethyl-3-oxohex-5-enoate

2,2,3-trimethylbut-3-enoyl chloride

1-[2-(1H-indol-3-yl)ethyl]-3,3-dimethylpyridine-2,4-dione