Cc1ccc([C@@]2(C)CC/C(=N/N=C3\CC[C@](C)(c4ccc(C)c(C)c4)c4cc(C)c(C)cc43)c3cc(C)c(C)cc32)cc1C
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?