new function that extracts smiles from extended smiles (XHELM-34)
new function that extracts smiles from extended smiles (XHELM-34)
MarkusWeisser/HELMNotationToolkit,MarkusWeisser/HELMNotationToolkit,PistoiaHELM/HELM2NotationToolkit,PistoiaHELM/HELMNotationToolkit