CCn1cc(C(=O)N[C@@H](CC(C)C)C(=O)NCCCn2ccnc2)c(=O)c2cc3c(cc21)OCO3
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?