Using CCCc1nc2c(N)nc3ccccc3c2n1CCOCCCCl, Sc1ccccn1 to produce CCCc1nc2c(N)nc3ccccc3c2n1CCOCCCSc1ccccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.