{SNA} Aldehydes, Building Blocks, C1 to C6, C6, Carbonyl Compounds, Chemical Synthesis, Halogenated Heterocycles, Heterocyclic Building Blocks, Organic Building Blocks, Pyridines
{SA} Aldehydes, Building Blocks, C1 to C6, C5 to C6, C6 to C7, Carbonyl Compounds, Chemical Synthesis, Halogenated Heterocycles, Heterocyclic Building Blocks, Organic Building Blocks, Pyridines