Cc1ccc(C(=O)C(C)OC(=O)CN2C(=O)NC3(CCCC3)C2=O)cc1C
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?