Cc1cc2oc(=O)cc(CN3CCN(S(=O)(=O)c4ccc5c(c4)OCCO5)CC3)c2cc1C
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?