1 C18 7-[(3-chlorobenzyl)oxy]-4-[(methylamino)methyl]-2h-chromen-2-one 1.000 2 C17 7-[(3-chlorobenzyl)oxy]-2-oxo-2h-chromene-4-carbaldehyde 0.875 3 5IH 3,4-dimethyl-7-[[(3~{S})-piperidin-3-yl]methoxy]chromen-2-one 0.760