InChI=1/C15H21NO2/c1-3-16-9-10-18-15-12-5-4-6-14(17-2)11(12)7-8-13(15)16/h4-6,13,15H,3,7-10H2,1-2H3/t13-,15-/m1/s1 9E23D210583D8C7D