You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a mek inhibitor.
user
Cc1c(Nc2ccc(Br)cc2F)c(C(=O)Nc2nccs2)c2n(c1=O)CCC2
assistant