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
Given the following product, please provide possible reactants. <molecule_2d>
user
Possible reactant(s): CCc1cc2c(O)c(CCc3ccccc3)c(=O)n(Cc3ccc(-c4ccccc4C#N)cc3)c2s1.O=S(=O)(OS(=O)(=O)C(F)(F)F)C(F)(F)F .
assistant