5-(dimethylamino)-4,4-dimethyl-1-phenylpent-1-en-3-one

6-chloro-2-methoxy-N,N-dimethylacridin-9-amine

methyl 2-methoxy-4-methylidene-5-oxohexanoate

2-acetyl-4-methoxy-4-methoxycarbonyl-N,N,N-trimethylbutanaminium-iodide

methyl 4-methylidene-5-oxooxolane-2-carboxylate