Using COC(=O)CBr, Oc1ccc(-c2ccc3c(c2)c(Cc2ccccc2)c(-c2ccccc2)n3Cc2ccccc2)cc1 to produce COC(=O)COc1ccc(-c2ccc3c(c2)c(Cc2ccccc2)c(-c2ccccc2)n3Cc2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.