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
To synthesis <molecule_2d>, what are the possible reactants? Write in the SMILES representation.
user
COc1ccc(CN(c2nncs2)S(=O)(=O)c2cc(Cl)c(F)cc2F)c(OC)c1.Oc1cc(-c2cccc(F)c2)c(Cl)cc1-c1ccnnc1
assistant