CCOC(=O)N1CCC(N2C(=O)c3ccccc3C2Nc2ccc3c(C)cc(=O)oc3c2)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?