2-乙酰基-4-甲基噻唑

1-[5-(苯基甲氧基)-2-吡啶]-乙酮

5-morpholin-4-ylpent-3-yn-2-one

tert-butyl 4-(3-oxobut-1-ynyl)piperidine-1-carboxylate

1-phenyldecane-1,3,5,7,9-pentone