Using COC(=O)c1cc(CO)ccc1CN1C(c2ncccc2C)CCCC1c1ncccc1C, O=C([O-])O to produce COCc1ccc(CN2C(c3ncccc3C)CCCC2c2ncccc2C)c(C(=O)OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.