InChI=1S/C23H31N7/c24-17-10-12-18(13-11-17)27-23-28-21(25-14-16-6-2-1-3-7-16)20-22(29-23)30(15-26-20)19-8-4-5-9-19/h1-3,6-7,15,17-19H,4-5,8-14,24H2,(H2,25,27,28,29)/t17-,18-