https://doi.org/10.1351/goldbook.N04253
Ribosyl or deoxyribosyl derivatives (rarely, other glycosyl derivatives) of certain @P04958@ or @P04953@. They are thus @G02663@ or N-@G02661@ related to @N04255@ by the lack of @PT06790@. It has also become customary to include among nucleosides analogous substances in which the @G02665@ is attached to carbon rather than nitrogen ('C-nucleosides').
See also:
nucleic acids