Using O=C1OCCn2nc(-c3ccccn3)c(-c3ccnc4ccccc34)c21 to produce OCCn1nc(-c2ccccn2)c(-c2ccnc3ccccc23)c1CO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.