COC(=O)C1CCN(Cc2c(C(=O)N3C[C@H](C)O[C@H](C)C3)nc3ccc(Cl)cn23)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?