COc1ccc(NC(=O)N2CC3(CCN(C(=O)c4c(C)noc4C)CC3)C2)cc1
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?