InChI=1/C18H27BrN2O3/c1-3-5-8-13(4-2)12-20-16(18(23)24)11-17(22)21-15-10-7-6-9-14(15)19/h6-7,9-10,13,16,20H,3-5,8,11-12H2,1-2H3,(H,21,22)(H,23,24)/t13-,16+/m1/s1/f/h20-21H 2B4D5E2F48ED8856