Using OC(COc1ccccc1)CN(CCOc1ccc(-n2ccnc2)cc1)Cc1ccccc1 to produce OC(CNCCOc1ccc(-n2ccnc2)cc1)COc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.