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 janus kinase inhibitor and belongs to the cancer treatment class of molecules. Please represent the molecule in SMILES.
user
CC(C)(C)C(=O)OCn1ccc2c(-c3cnn(C4(CC#N)CNC4)c3)cnnc21
assistant