InChI=1/C19H28N2O3/c1-13-6-7-16-18(14(13)2)20-15(3)17(19(16)22)12-21(8-10-23-4)9-11-24-5/h6-7H,8-12H2,1-5H3,(H,20,22)/f/h20H 4BAF256BA30B101B