Using CCOC(=O)CC1CN=C(c2cc3cc(Oc4ccc(S(C)(=O)=O)nc4)cc(OC)c3[nH]2)S1 to produce COc1cc(Oc2ccc(S(C)(=O)=O)nc2)cc2cc(C3=NCC(CC(=O)O)S3)[nH]c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.