Using CCOCc1nc2c(N)nc3ccccc3c2n1CC1(O)CCCC1 to produce CCOCc1nc2c(N)nc3c(c2n1CC1(O)CCCC1)CCCC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.