CC1(C(=O)N(CC(=O)NC2CCCC2)C2CCCC2)CC(=O)N=C2C=CC=CN21
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?