Cc1c(C(=O)NCCCN2CCCCC2)oc2ccc3c(c12)C(O)CC1(CCCCC1)O3
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?