CC(=O)Nc1ccc([C@H]2[C@H](C)CC[C@H]3C(=O)N4[C@@H](CC[C@@H](C)[C@@H]4c4ccc(NC(C)=O)cc4)C(=O)N32)cc1
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?