COCCn1/c(=N\C(=O)CCS(=O)(=O)c2ccccc2)sc2cc(C(=O)OC)ccc21
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?