InChI=1S/C16H19NO5/c1-17-10-5-6-11(17)13(16(21)22)15(20)12(10)14(19)8-3-2-4-9(18)7-8/h2-4,7,10-13,15,18,20H,5-6H2,1H3,(H,21,22)