CC(=O)C(=NNc1cc2c(c([N+](=O)[O-])c1C)C(C)(C)CC2(C)C)C(C)=O
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?