COC(=O)/C=C(\CC(=O)OC)n1nnnc1[C@@H]1C[C@H](COC(c2ccccc2)(c2ccccc2)c2ccccc2)[C@H]2OC(C)(C)O[C@@H]12
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?