Using O=C(CBr)c1ccc2c(c1)OCO2, Nc1ccc(OCC2CC2)nn1 to produce c1cc2c(cc1-c1cn3nc(OCC4CC4)ccc3n1)OCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.