NHCONRCONH
NHCONRCONH is a chemical nomenclature pattern that describes a specific arrangement of atoms within a molecule. The "NHC" portion typically refers to a nitrogen atom bonded to a carbon atom, which in turn is bonded to another atom. The "ONR" segment indicates an oxygen atom bonded to a nitrogen atom, which is then bonded to a radical or substituent group (R). Finally, the "CONH" at the end signifies a carbon atom double-bonded to an oxygen atom and single-bonded to a nitrogen atom, forming a part of a amide functional group.
This nomenclature suggests a molecule containing at least an amide linkage and a potentially complex substituent