Using COc1ccc(CNc2ccc3c(C(C)=O)c[nH]c3n2)cc1, CC(C)(C)OC(=O)CBr to produce COc1ccc(CNc2ccc3c(C(C)=O)cn(CC(=O)OC(C)(C)C)c3n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.