InChI=1/C16H26N2O4/c1-4-13(5-2)10-18(12-16(20)21-3)11-15(19)17-9-14-7-6-8-22-14/h6-8,13H,4-5,9-12H2,1-3H3,(H,17,19)/f/h17H 1F7FF5A8EB46831F