Using CC(=O)O, CSc1nc(-c2ccc(N3CCOCC3)cc2)cc2nccn12 to produce O=c1[nH]c(-c2ccc(N3CCOCC3)cc2)cc2nccn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.