You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a jak inhibitor.
user
N#CCC1(n2cc(C(N)=O)c(NC(=O)C3CC3)n2)CCN(Cc2ccc(NN=CC=N)cc2)CC1
assistant