CCOC(=O)Cn1nnc2c(sc3nc4c(c(-c5ccc(Cl)cc5)c32)CCC4)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?