Using CCOC(=O)c1cc(Cl)nc2c1c(C)nn2Cc1ccc(Oc2ccccc2)cc1, OB(O)/C=C/c1ccccc1 to produce CCOC(=O)c1cc(/C=C/c2ccccc2)nc2c1c(C)nn2Cc1ccc(Oc2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.