CC1=C(C)C(=O)OC(C(C)(O)C2(O)CC3OC34C3CC(O)C56OC5C=CC(=O)C6(C)C3CCC42C)C1.CC1=C(C)C(=O)OC(C(C)(O)C2(O)CC3OC34C3CC(O)C56OC5C=CC(=O)C6(C)C3CCC42C)C1
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?