CCC1OC(=O)CC(O)C(C)C(OC2OC(C)C(O)C(N(C)C)C2O)C(CC=O)CC(C)C(=O)/C=C/C2(C)OC2C1C
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?