Using C1COCCN1, COc1cc(Nc2ncnc3[nH]c(-c4ccc(CCl)cc4)cc23)ccn1 to produce COc1cc(Nc2ncnc3[nH]c(-c4ccc(CN5CCOCC5)cc4)cc23)ccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.