CC(C)=CCN1CC[C@@]2(C)c3cc(O)ccc3CC1C2C.O=C(O)CCC(=O)O
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?