CCOC(=O)c1cc(C2(O)CCN(CC(C)CC)C2=O)c(-c2cc(C)no2)[nH]1
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?