[H]\C1=C([H])\C2CC(OC(=O)C3O[B-]45OC(C(=O)OC6CC(OC6C)\C([H])=C([H])/CC(OC(C)=O)C(C)(C)C6CCC(C)C3(O4)O6)C3(O5)OC(CCC3C)C(C)(C)C(O)C1)C(C)O2