Using O=C(O)CO, CCN(CC)Cc1sc(-c2nc(-c3ccc(CCN)cc3)no2)cc1C to produce CCN(CC)Cc1sc(-c2nc(-c3ccc(CCNC(=O)CO)cc3)no2)cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.