Cc1ccc2[nH]c3c(c2c1)CN(C(=O)CN1CCN(Cc2ccc4c(c2)OCO4)CC1)CC3
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?