COC1=C(C)C(=O)c2c(c(COC(N)=O)c3n2C[C@@H]2[C@@H]3N2C)C1=O
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?