InChI=1/C18H21N3O5/c1-18(11-6-7-11)16(23)21(17(24)20-18)9-15(22)19-8-12-10-25-13-4-2-3-5-14(13)26-12/h2-5,11-12H,6-10H2,1H3,(H,19,22)(H,20,24)/t12-,18+/m1/s1/f/h19-20H 0136FB8419B756B2