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): NC1Cc2ccc(Cn3cc(CO)c(C(F)(F)F)n3)cc2C1.O=S(=O)(Cl)c1ccccc1Cl .
assistant