CSC12c3cc(C)n(-c4ccc(I)cc4)c3CC(C)(C)CN1C(=O)C2Oc1ccccc1
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?