Here is a molecule represented with SMILE: COC(C(O)C(C)=O)C1Cc2cc3cc(OC4CC(OC5CC(O)C(O)C(C)O5)C(O)C(C)O4)c(C)c(O)c3c(O)c2C(=O)C1OC1CC(OC2CC(O)C(O)C(C)O2)C(O)C(C)O1 . Please describe it in natural language.