Cc1cccn2c(=O)c3cc(C(=O)NCc4ccco4)c(=N)n(C(C)C)c3nc12
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?