C=C1C(C2(C)C=CC(=O)C(C)(C)C2CC(=O)OC)CC[C@@]2(C)C(c3ccoc3)OC(=O)C3OC132
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?