Using c1ccc(-c2ncc3[nH]c4c(c3n2)CC2(CC4)OCCO2)cc1 to produce O=C1CCc2[nH]c3cnc(-c4ccccc4)nc3c2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.