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): CC(C)Cc1c(C(=O)N(C2CCCCC2)C(C)C(=O)NC(CC(=O)OC(C)(C)C)C(=O)COc2cc(C(F)(F)F)nn2-c2ccccc2)n(C)c2ccccc12 .
assistant