CC[C@H]1CC2CN3CCc4c([nH]c5c([C@H]6C[C@H]7[C@H](CC)CN(C)[C@@H](Cc8c6[nH]c6ccccc86)[C@H]7C(=O)OC)c(OC)ccc45)C(C(=O)OC)(C2)C13
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?