CC1(C)CC(=O)c2c(nc3ccc4ccccc4c3c2-c2ccc(NC(=O)CCCC(=O)Nc3ccc(-c4c5c(nc6ccc7ccccc7c46)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?