Cc1cc2oc3c(c(=O)c2cc1C)C(c1ccc(C(C)C)cc1)N(c1nc(C)c(C)s1)C3=O
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?