Using C=CCBr, COC(=O)C1=C(OC(=O)C(C)(C)C)C(O)NC=N1 to produce C=CCn1cnc(C(=O)OC)c(OC(=O)C(C)(C)C)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.