Using CCCn1ncc2c(=O)[nH]c(-c3cc(C(=O)CBr)ccc3OCC)nc21, C1COCCN1 to produce CCCn1ncc2c(=O)[nH]c(-c3cc(C(=O)CN4CCOCC4)ccc3OCC)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.