InChI=1/C22H24N2O3/c1-20(11-21(2)13-22(3,12-20)19(27)24-18(21)26)17(25)23-16-10-6-8-14-7-4-5-9-15(14)16/h4-10H,11-13H2,1-3H3,(H,23,25)(H,24,26,27)/t20?,21-,22+/f/h23-24H 1DBAE801F869C376