COc1cc2c(cc1OC)CN(C(=O)CN1C(=O)NC3(CCC(C)CC3)C1=O)CC2
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?