InChI=1S/C21H39N3O3/c1-2-3-4-11-19(25)21(27)18-10-7-9-17-16-20(26)23-14-6-5-12-22-13-8-15-24(17)18/h7,10,17-19,21-22,25,27H,2-6,8-9,11-16H2,1H3,(H,23,26)/t17-,18-,19+,21-/m0/s1