InChI=1S/C23H41NO4/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-23(27)28-21(24(2,3)4)19-20-22(25)26/h7-8,10-11,21H,5-6,9,12-20H2,1-4H3/t21-/m0/s1