Using O=C(CCC(=O)c1ccccc1)NC1CCCCC1, NNC(N)=S to produce NC(=S)NN=C(CCC(=O)NC1CCCCC1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.