CCOc1cc(/C=C2\S/C(=N/C)N(C)C2=O)c(Br)cc1OC(C)=O
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?