Using CCOC(C)=O, Nc1nc(OC2CCC2)nc2c1nc(Br)n2C1CCCCO1 to produce COc1nc2c(N)nc(OC3CCC3)nc2n1C1CCCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.