InChI=1S/C18H23NO3.C4H6O6/c1-13(2-3-14-4-7-16(20)8-5-14)19-11-10-15-6-9-17(21)18(22)12-15;5-1(3(7)8)2(6)4(9)10/h4-9,12-13,19-22H,2-3,10-11H2,1H3;1-2,5-6H,(H,7,8)(H,9,10)/t;1-,2-/m.0/s1