CCCOc1cccc(C2c3c(oc4ccc(F)cc4c3=O)C(=O)N2Cc2ccc3c(c2)OCO3)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?