Cc1ccc(C)c(N2CCN(c3c(CN4CCCC4)c(=O)oc4ccccc34)CC2)c1
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?