CC1CCCC(NC(=O)c2ccc3c(=O)n(CC4CCCO4)c(=O)[nH]c3c2)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?