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
CC(C)(C)OC(=O)NCCCC(=O)O.CC(C)(C)OC(=O)Nc1nc(C(=NOC2(C(=O)OC(c3ccccc3)c3ccccc3)CC2)C(=O)NC2C(=O)NC2Cn2ncc(CN)n2)cs1
assistant