CCC1OC2C(CC=C(C)C)=C3OC(C)(O)C(C)(CC)C(=O)C3=C3OC(=O)C=C1C32
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?