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: N#Cc1cc(F)c(N)nc1N1C(=O)C(C(=O)O)C(=O)c2cc(F)c(F)c(Cl)c21.NC1CNC1 .
assistant