Using C1CCCNCC1, O=C(O)c1csc(C2CCN(C(=O)OCc3ccccc3)CC2)c1 to produce O=C(OCc1ccccc1)N1CCC(c2cc(C(=O)N3CCCCCC3)cs2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.