InChI=1/C15H23NO5/c17-12(16-7-3-11(4-8-16)14(20)21)9-15(10-13(18)19)5-1-2-6-15/h11H,1-10H2,(H,18,19)(H,20,21)/p-2/fC15H21NO5/q-2 06AC1D0E98A79889