Using CCOP([O-])OCC, CCOCn1cnc2c1c(=O)n(CCCCCBr)c(=O)n2C to produce CCOCn1cnc2c1c(=O)n(CCCCCP(=O)(OCC)OCC)c(=O)n2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.