CCOC(=O)NC(=O)c1cn(-c2ccc(CCOC(=O)NCCCCCCNC(=O)OCCc3ccc(-n4c(=O)[nH]cc(C(=O)NC(=O)OCC)c4=O)cc3)cc2)c(=O)[nH]c1=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?