InChI=1S/C19H27NO5/c1-19(25,12-21)15-9-7-14(8-10-15)17(22)20-16(18(23)24)11-13-5-3-2-4-6-13/h2-6,14-16,21,25H,7-12H2,1H3,(H,20,22)(H,23,24)/t14-,15?,16-,19?/m1/s1