Using O=C(O)C=Cc1ccoc1, COc1cc2nc(N3CCNCC3)nc(N)c2cc1OC to produce COc1cc2nc(N3CCN(C(=O)C=Cc4ccoc4)CC3)nc(N)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.