CC1=CC2OC3CC(OC(=O)/C=C/C=C/C(OCCC4=CC(=O)OC4)C(C)O)C(C)(C2(CO)CC1)C31CO1
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?