Using CCS, COc1cc(Cn2cnc3c(Br)nc(N)nc32)c(Br)c(OC)c1OC to produce CCSc1nc(N)nc2c1ncn2Cc1cc(OC)c(OC)c(OC)c1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.