CCn1cc(/C=C(\NC(=O)c2ccc(OC)c(OC)c2)C(=O)NCCCn2ccnc2)c2ccccc21
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?