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 janus kinase inhibitor.
user
CC(C)(C)N1Cc2cc(N=C(N)c3c(NC4CCCCC4)cc[nH]c3=O)ccc2C1=O
assistant