You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a marine biotoxin.
user
O=C1OCC2OC(=O)c3oc(=O)c4cc(O)c(O)c(O)c4c4c(O)c(O)c(O)cc4c(=O)oc3C2OC(=O)c2cc(O)c(O)c(O)c2-c2c1cc(O)c(O)c2O
assistant