InChI=1/C18H31NO4/c1-14(2)19-11-17(20)13-23-18-7-5-16(6-8-18)12-21-9-10-22-15(3)4/h5-8,14-15,17,19-20H,9-13H2,1-4H3/p+1/t17-/m1/s1/fC18H32NO4/h19H/q+1 D805A60AD97C01F2