CC1=NN(c2ccc(C)cc2C)C(=O)C1C(c1cccc(O)c1)C1C(=O)N(c2ccc(C)cc2C)N=C1C
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?