CC(=O)OC1CC2C(C)(C)C(O)C=C[C@@]2(C)C2CC[C@@]3(C)C(c4ccoc4)OC(=O)C4OC43[C@]12C
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?