CCOC(=O)CCCCCC(=O)Nc1ccc2c(c1)C(=O)N([C@@H](C)CO)C[C@@H](C)[C@H](CN(C)C(=O)Nc1ccccc1)OCCCC[C@H](C)O2
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?