Using CCOC(=O)CN(CCn1nc(COC)cc1COC)CCn1nc(COC)cc1COC to produce COCc1cc(COC)n(CCN(CCO)CCn2nc(COC)cc2COC)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.