Using CC1CCCN1CCCOc1ccc(-n2cc(NC(=O)CCC(=O)O)cn2)cc1 to produce CC1CCCN1CCCOc1ccc(-n2cc(N3C(=O)CCC3=O)cn2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.