COc1ccccc1-c1nc2c(c(SCC(=O)N3CCCCC3)n1)Cc1c(CO)cnc(C)c1O2
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?