C[C@]12CC[C@H]3c4ccc(O)cc4CC[C@@H]3[C@H]1C/C(=N/O)[C@H]2O
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?