Using O=C(CCS)Nc1ccc(Nc2ccccc2)cc1, [OH-] to produce O=C(CCSCCC(=O)Nc1ccc(Nc2ccccc2)cc1)Nc1ccc(Nc2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.