InChI=1/C19H21N3O6/c1-10-17(19(26)27-4)8-16(28-10)9-20-18(25)13-5-14(21-11(2)23)7-15(6-13)22-12(3)24/h5-8H,9H2,1-4H3,(H,20,25)(H,21,23)(H,22,24)/f/h20-22H BCB6F43B894EECB1