COc1cccc(N2C(=O)C(Cl)=C(N3CCN(Cc4ccc5c(c4)OCO5)CC3)C2=O)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?