CC1(C)CC(=O)c2c(nc3c(ccc4ccccc43)c2-c2ccc(NC(=O)CCC(=O)Nc3ccc(-c4c5c(nc6c4ccc4ccccc46)CC(C)(C)CC5=O)cc3)cc2)C1
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?