CCCC(C)(O)C1CC23C=CC1(OC)C1Oc4c(O)ccc5c4[C@@]12CCN(C)[C@@H]3C5.Cl
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?