InChI=1/C21H28N2O/c1-6-17-10-12-18(13-11-17)20(23(4)5)14-22-21(24)19-9-7-8-15(2)16(19)3/h7-13,20H,6,14H2,1-5H3,(H,22,24)/t20-/m0/s1/f/h22H 65499626BF686E5D