Using O=C1CCCCN1Cc1ccccc1, BrCc1ccc2c(c1)OCO2 to produce O=C1C(Cc2ccc3c(c2)OCO3)CCCN1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.