InChI=1/C18H39NO4/c1-4-7-10-19(13-17(20)15-22-11-8-5-2)14-18(21)16-23-12-9-6-3/h17-18,20-21H,4-16H2,1-3H3/p+1/t17-,18-/m1/s1/fC18H40NO4/h19H/q+1 1C15E6FD81A7B627