Using CC(C)(C)OC(=O)N1CCC(CNC(=O)c2n[nH]c3ccc(Br)cc23)CC1 to produce O=C(NCC1CCNCC1)c1n[nH]c2ccc(Br)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.