Using C=CCc1cc2c(-c3cc(OC)c(OC)c(OC)c3)coc2cc1O to produce CCCc1cc2c(cc1O)OCC2c1cc(OC)c(OC)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.