Using CCOC(OCC)OCC, C[C@H]1[C@@H](O)O[C@@H]2OC3(C)CC[C@H]4[C@H](C)CC[C@@H]1[C@@]24OO3 to produce CCO[C@H]1O[C@@H]2OC3(C)CC[C@H]4[C@H](C)CC[C@@H]([C@H]1C)[C@@]24OO3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.