Using CCc1csc(-c2ccc(OCCCO)nc2)n1, COC(=O)[C@@H](C)n1ccc2cc(O)ccc21 to produce CCc1csc(-c2ccc(OCCCOc3ccc4c(ccn4[C@H](C)C(=O)OC)c3)nc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.