O=C1C=C(c2ccc(C(=O)O)cc2)C[C@@H](c2ccc3c(c2)OCO3)C1
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?