InChI=1/C13H17BrN2O3/c1-3-7(2)11(15)12(17)16-10-6-8(14)4-5-9(10)13(18)19/h4-7,11H,3,15H2,1-2H3,(H,16,17)(H,18,19)/t7-,11+/m0/s1/f/h15-16H B8DB2C081AA0892B