CN[C@H]1CCc2cc(OC)c(OC)c(OC)c2-c2ccc(N[C@@H]3CCCCNC3=O)c(=O)cc21
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?