InChI=1/C20H39N3O4/c1-6-17(7-2)12-23(15-20(25)26-5)14-19(24)21-10-18-13-22(8-9-27-18)11-16(3)4/h16-18H,6-15H2,1-5H3,(H,21,24)/t18-/m1/s1/f/h21H 6B4ECD6A0B4D16B1