Hi Nagasai,
I'm a little confused about what you are trying to achieve. If you have a list of compounds with the names and their smiles, you could import that list as a network, with the names as the source column and the smiles strings as a source attribute. Note that you will not specify a target column. Essentially, you are getting a network with no edges. Then, you can use chemViz2 to create a new network by doing a "Create Similarity Network" The new network should have all of the names and smiles strings.
-- scooter