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): COc1ncc(-c2ccc(C(=O)OC(C)(C)C)cc2C)cc1-c1cnc(N2CC(F)C2)nc1CN1C(=O)OC(c2cc(F)cc(C(F)(F)F)c2)C1C .
assistant