2,2,5,5-tetramethylthiolane-3,4-dione

2,5-dimethylhex-4-en-3-ol

2,5-二甲基-3,4-己烷二酮

2,5-dimethyl-3,4-bis-trimethylsilanyloxy-hex-3-ene

2,5-dimethyl-3[(trimethylsilyl)oxy]hex-2-en-4-one