CC(=O)Oc1c2c(c(CC=C(C)C)c3c1C(=O)C1=C[C@@H]4CC5C(C)(C)OC(C/C=C(/C)C(=O)O)(C4=O)[C@@]15O3)OC(C)(CCC=C(C)C)C=C2
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?