Using CCc1cc2c(c(CC)c1O)C(=O)CC1(CCC1)O2, CON to produce CCc1cc2c(c(CC)c1O)/C(=N/OC)CC1(CCC1)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.