Using O=C1CCNCC1, NNc1ccc2scc(-c3ccccc3)c2c1 to produce c1ccc(-c2csc3ccc4[nH]c5c(c4c23)CNCC5)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.