Nc1ccn(C2OC(COP(=O)(O)OCC3OC(n4cc(F)c(=O)[nH]c4=O)CC3O)C(O)C2O)c(=O)n1
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?