CCn1cc(C(=O)NCC2CCCO2)c(=O)c2cc(S(=O)(=O)N3CCC(C)CC3)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?