You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: The molecule is a chelating agent and belongs to the pharmaceutical class of molecules.
user
CCC=CCC=CCC=CCC=CCC=CCCCCCC(=O)OC(COC(=O)CCCCCCCC=CCC=CCC=CCC)COP(=O)(O)OCC(O)COP(=O)(O)O
assistant