InChI=1/C18H27NO4/c1-2-23-17(21)18(16-6-4-3-5-7-16)8-10-19(11-9-18)12-14-22-15-13-20/h3-7,20H,2,8-15H2,1H3/p+1/fC18H28NO4/h19H/q+1 AC0D8E82E65FAF55