Compos�es h�et�erocycliques Chemistry Organic SCIENCE Heterocyclic chemistry Heterocyclic compounds Chimie des compos�es h�et�erocycliques Compos�es organiques cycliques Heterocyclic Compounds Organic cyclic compounds Chimie organique HETEROCYCLIC COMPOUNDS CHEMICAL REACTIONS Chemistry, Organic organic chemistry Chimie des composés hétérocycliques Organic Chemistry Organic compounds Physical Sciences & Mathematics RESEARCH Science Synthesis Compos�es organiques Heterocykliska föreningar St�er�eochimie Stereochemistry Synth�ese 35.59 heterocyclic compounds AMIDES ANIONS