InChI=1/C17H19N3O4/c18-13(17(23)24)5-6-15(21)20-8-7-14-12(9-20)10-3-1-2-4-11(10)16(22)19-14/h1-4,13H,5-9,18H2,(H,19,22)(H,23,24)/t13-/m0/s1/f/h18-19H 38812AA1AFB4B21D