InChI=1/C21H27NO4/c1-15-18(22)19(24-13-16-9-5-3-6-10-16)20(23-2)21(26-15)25-14-17-11-7-4-8-12-17/h3-12,15,18-21H,13-14,22H2,1-2H3/p+1/t15-,18+,19+,20+,21-/m1/s1/fC21H28NO4/h22H/q+1 2F9F5881A0A712E2