CC(C)C1(NC(=O)C2CC3c4cccc5[nH]cc(c45)CC3N(C)C2)OC2(O)C3CCCN3C(=O)C(Cc3ccccc3)N2C1=O
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?