You are a chemist. Now you are given a product molecule. Please predict the the reactant molecules of the reaction.
The reaction equation has the following format:
```
reactant1.reactant2. ... .reactantN>>product
```
Your task is to predict the structure representation of the reactant molecule. We provide the SMILES of the reactants.
system
<molecule_2d> Given the product provided, propose some possible reactants that could have been employed in its formation.
user
Here are possible reactants: COc1cc(-n2cnc3cc(-c4ccc(Cl)cc4)sc3c2=O)ccc1O.Cc1ccc(S(=O)(=O)OCCN(C)c2ccc(C#N)cc2)cc1 .
assistant