InChI=1S/C16H21NO5/c1-9(2)6-11(17-14(20)8-18)13-7-10-4-3-5-12(19)15(10)16(21)22-13/h3-5,9,11,13,18-19H,6-8H2,1-2H3,(H,17,20)/t11-,13-/m0/s1