COC(=O)C(Cc1ccccc1)/N=C/c1c(O)c(O)c(C(C)C)c2cc(C)c(-c3c(C)cc4c(C(C)C)c(O)c(O)c(/C=N/C(Cc5ccccc5)C(=O)OC)c4c3O)c(O)c12
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?