CCCCCCNC(=O)OC12CN(C(=O)OC(C)C)N(C(=O)OC(C)C)CC1(O)CN(S(=O)(=O)c1ccc(C)cc1)C2
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?