Using O=C1c2ccccc2C(=O)N1Cc1nc(-c2ccccc2)c(Sc2ccccc2)s1 to produce NCc1nc(-c2ccccc2)c(Sc2ccccc2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.