Using COC(=O)CCNC(=O)c1ccc2c(c1)nc(C1CCNCC1)n2C, CCSC(=N)N to produce COC(=O)CCNC(=O)c1ccc2c(c1)nc(C1CCN(C(=N)N)CC1)n2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.