Cc1ccc(-n2nc3c(=O)n(CCCC(=O)N4CCC(C(N)=O)CC4)nc(C)c3c2C)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?