C=CC1C2=C(C(=O)NCC2)C2OC(O)C3=C(CCNC3=O)C2C1C
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?