Oc1ccc2c3c1O[C@@H]1c4[nH]c5c(c4C[C@@]4(O)[C@@H](C2)N(CC2CC2)CC[C@]314)C[C@]1(O)[C@@H]2Cc3ccc(O)c4c3[C@@]1(CCN2CC1CC1)[C@H]5O4
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?