Using O=Cc1nc2c(N3CCOCC3)nc(Cl)nc2s1, C1CN(C2CNC2)CCO1 to produce Clc1nc(N2CCOCC2)c2nc(CN3CC(N4CCOCC4)C3)sc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.