Using O=C1NCc2cc(Cl)ccc21, CC1(C)COC2(CCCc3c(Br)cncc32)OC1 to produce CC1(C)COC2(CCCc3c(N4Cc5cc(Cl)ccc5C4=O)cncc32)OC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.