COc1ccc(CN2C(=O)C(Cc3cc(OC)c(OC)c(C)c3OC)NC(=O)/C2=C/c2cc(OC)c(OC)c(C)c2OC)cc1
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?