CCc1cc2c(=O)n(CCCOC)c(SCC(=O)Nc3oc(C)c4c(C)nnc(O)c34)nc2s1
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?