This mini reveiw deals with the synthesis and their properties of a new typ
e of nucleosides, so-called C-azanucleosides, along with the synthetic meth
od for their related compounds, azafuranopentose. The DNA and RNA have been
known to play an important role in the protein synthesis and the life proc
esses. The azanucleosides seem very attractive to scientists as a new class
of DNA and RNA subunit compounds.