COc1ccc(NC(=O)/C(C#N)=C\c2cc(OC)c(OCc3ccc(C(=O)O)cc3)cc2Br)cc1
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?