Using O=C(O)C1CSC(c2cccnc2)N1, c1cnc(N2CCNCC2)nc1 to produce O=C(C1CSC(c2cccnc2)N1)N1CCN(c2ncccn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.