Using C1=COCCC1, CCOC(=O)c1nc(-c2ccc(OC)cc2)oc1CO to produce CCOC(=O)c1nc(-c2ccc(OC)cc2)oc1COC1CCCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.