COc1cc(/C=C2\[C@H]3c4c(c(OC)c(C)c(OC)c4OC)C[C@@H](C(=O)N2Cc2ccccc2)N3C(=O)OCC(C)C)c(OC)c(C)c1OC
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?