CCOC(=O)c1c(C)[nH]c(C(=O)CN2C(=O)NC(CC)(c3ccccc3)C2=O)c1C
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?