Using O=C(O)[C@H](Cc1ccccc1)NC(=O)N(CCc1ccccc1)C(CS)CS to produce O=C(O)[C@H](Cc1ccccc1)NC(=O)N(CCc1ccccc1)C1CSSC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.