Cc1ccc2c(c1)COc1c3ccc(C(=O)N[C@@H](CO)C(C)C)cc3nn1-2
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?