InChI=1S/C19H39NO3/c1-15(2)13-16(22)11-9-7-5-3-4-6-8-10-12-17-19(23)18(14-21)20-17/h15-23H,3-14H2,1-2H3/t16-,17-,18-,19+/m0/s1