CCOc1ccc(C2c3c(-c4ccc(C)cc4)n[nH]c3C(=O)N2c2ccc(Cl)cc2)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?