InChI=1/C20H27NO4/c1-5-6-16-8-10-19(20(11-16)23-4)24-14-17(22)12-21(3)13-18-9-7-15(2)25-18/h5,7-11,17,22H,1,6,12-14H2,2-4H3/p+1/t17-/m1/s1/fC20H28NO4/h21H/q+1 2A27D9DC39788C6F