Using CCOC(=O)c1cn2c3c(c(-c4ccccc4)ccc3c1=O)OCC2C to produce CC1COc2c(-c3ccccc3)ccc3c(=O)c(C(=O)O)cn1c23, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.