Using C1COCCN1, Nc1ncnc2c1c(-c1ccc(Oc3ccccc3C=O)cc1)cn2C1CCOC1 to produce Nc1ncnc2c1c(-c1ccc(Oc3ccccc3CN3CCOCC3)cc1)cn2C1CCOC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.