You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a jak inhibitor. Please represent the molecule in SMILES.
user
C=CC(=O)N1CCCC(n2cc(Nc3ncc(C(N)=O)c(NC(C)C)n3)cn2)C1
assistant