InChI=1S/C27H43N/c1-17-8-11-23-18(2)25-24(28(23)16-17)15-22-20-10-9-19-7-5-6-13-26(19,3)21(20)12-14-27(22,25)4/h9,17-18,20-25H,5-8,10-16H2,1-4H3/t17-,18+,20?,21?,22?,23?,24?,25?,26?,27?/m1/s1