CCOc1cc(N2CCOCC2)c(OCC)cc1NC(=O)c1c(-c2ccccc2Cl)noc1C
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?