Using CCOC(=O)c1c(C)nc2c(cnn2CC)c1-c1cncc(Br)c1 to produce CCn1ncc2c(-c3cncc(Br)c3)c(CO)c(C)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.