O=C(O)C(N)CCC/N=C(\N)N, O=C(N)C[C@H](N)C(=O)O, O=C(O)[C@@H](N)Cc1cncn1
That's SMILES! What are you actually trying to do?

In reply to Re: all permutations of given lenght by Anonymous Monk
in thread all permutations of given lenght by cataclismic_user

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