InChI=1/C19H23NO8/c1-9(21)20-14-8-12(22)11-7-10(5-6-13(11)27-14)26-18-16(24)15(23)17(25-4)19(2,3)28-18/h5-8,15-18,23-24H,1-4H3,(H,20,21)/t15-,16+,17+,18+/m0/s1/f/h20H 519A537D6CA728AC