5-(1-hydroxy-2-oxo-2-phenylethyl)furan-2-carbaldehyde

5-(2-hydroxy-2-phenylacetyl)furan-2-carbaldehyde

5-(2-hydroxy-2-phenylacetyl)-1-methylpyrrole-2-carbaldehyde

2-phenylpyrido[3,4-b]pyrazine

2-methoxy-2-(4-methylanilino)-1-phenylethanone