InChI=1/C19H21NO3/c21-18(15-10-12-3-4-13(15)9-12)20-14-5-6-16-17(11-14)23-19(22-16)7-1-2-8-19/h3-6,11-13,15H,1-2,7-10H2,(H,20,21)/t12-,13+,15-/m1/s1/f/h20H 728B539FCE531AB1