You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a jak inhibitor. Please write the SMILES representation of it.
user
COC(=O)c1cn(C(=O)OC(C)(C)C)c2nccc(CNC3(C(=O)O)CCCC3)c12
assistant