SEARCH Articles Figures Tables B97, exchange-correlation functionals heterocycles Biological functions of natural and synthetic bioactive heterocycles Direct Functionalization via C-H Activation of Heterocyclic Substrates Functionalization heterocyclic compounds Heterocycles boron functionalized Heterocycles methylamine functionalization Heterocycles without a Functional Group Heterocyclic aromatic compounds activating electrophilic functional Heterocyclic compounds, functional groups Oxygen containing heterocycles functionalization Reduction of Non-aromatic Heterocycles Containing the C N Function