CC(C)CON=C1CC(O)C(O)C2C1CCC1C(=O)N(Cc3ccc4c(c3)OCO4)C(=O)C12
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?