Using CCCBr, O=c1[nH]c2ccc(OC3CCNCC3)cc2c2ncccc12 to produce CCCN1CCC(Oc2ccc3[nH]c(=O)c4cccnc4c3c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.