Cc1ccc(CCNC(=O)C2CCC(C/N=c3\c(N4CCCC4)c(O)c3=O)CC2)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?