CCC(C)(C)C1CCC2(CC1)NC(=O)N(CC(=O)N(C)Cc1ccc3c(c1)OCCO3)C2=O
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?