Using NCCc1csc2ccccc12, Cc1ccc2c3c(ccc2n1)OC[C@H](COS(=O)(=O)c1ccc(Br)cc1)O3 to produce Cc1ccc2c3c(ccc2n1)OCC(CNCCc1csc2ccccc12)O3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.