InChI=1/C21H27NO5/c1-26-17-5-2-14(3-6-17)21-9-7-18(27-21)11-22-12-20(25)15-4-8-19(24)16(10-15)13-23/h2-6,8,10,18,20-25H,7,9,11-13H2,1H3/p+1/t18-,20+,21+/m1/s1/fC21H28NO5/h22H/q+1 DD34C633F711FD21