Using O=CO, CC(C)(C)OC(=O)NC1CCC(Oc2ncnc3sc4c(c23)[C@H](CCO)CC4)CC1 to produce CN(C)C1CCC(Oc2ncnc3sc4c(c23)[C@H](CCO)CC4)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.