InChI=1S/C28H31NO2.C4H6O6/c30-24-11-15-27-23(20-24)10-14-26(21-6-2-1-3-7-21)28(27)22-8-12-25(13-9-22)31-19-18-29-16-4-5-17-29;5-1(3(7)8)2(6)4(9)10/h1-3,6-9,11-13,15,20,26,28,30H,4-5,10,14,16-19H2;1-2,5-6H,(H,7,8)(H,9,10)/t26-,28+;1-,2-/m10/s1