COc1ccc(/N=C2\S/C(=C\c3ccc(OC(C)C(=O)O)c(OC)c3)C(=O)N2CCc2c[nH]c3ccccc23)cc1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?