Using CCOC(=O)c1cnc2cc(-c3c(C)noc3C)c(OC)cc2c1O to produce COc1cc2c(O)c(C(=O)O)cnc2cc1-c1c(C)noc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.