COc1ccc(O[C@H]2C=C[C@@H](c3ccccc3)O[C@H]2COC(=O)CC/C(C)=N\O[C@@H](C)c2cn([C@H](CO)Cc3ccccc3)nn2)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?