CCOc1ccc(NC(=O)Cn2c(=O)n(Cc3ccc4c(c3)OCO4)c(=O)c3ccc(C(=O)NC4CCCCC4)cc32)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?