Using O=C(NCCNCC(O)COc1ccc(O)cc1)N1CCOCC1, COCCOS(C)(=O)=O to produce COCCOc1ccc(OCC(O)CNCCNC(=O)N2CCOCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.