CCOC(=O)NC(=O)c1cn(CCN(CCO)C(=O)NCCCCCCNC(=O)N(CCO)CCn2cc(C(=O)NC(=O)OCC)c(=O)[nH]c2=O)c(=O)[nH]c1=O
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?