C#Cc1ccc([C@@H]2C=C(C(=O)O)O[C@H](OCC)[C@H]2CCCO)cc1
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?