Using O=CC1CCOCC1, CC(C)(C)c1csc(NC(=O)[C@@H]2CCCN2)n1 to produce CC(C)(C)c1csc(NC(=O)[C@@H]2CCCN2CC2CCOCC2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.