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
With the given product <molecule_2d>, suggest some likely reactants that were used in its synthesis.
user
CN1CCN(CCC(=O)O)CC1.O=C1NC(=Cc2cnn3c(NC4CC4)cc(Nc4cc(Cl)ccc4F)nc23)C(=O)N1CO
assistant