Using Oc1cnc2[nH]ccc2c1, Clc1ncnc2cc3c(cc12)OCO3 to produce c1nc(Oc2cnc3[nH]ccc3c2)c2cc3c(cc2n1)OCO3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.