Using O=CO, Clc1nc(N2CCOCC2)c2sc(C=C3CCNCC3)cc2n1 to produce CN1CCC(=Cc2cc3nc(Cl)nc(N4CCOCC4)c3s2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.