InChI=1S/C17H19NO3/c1-20-13-5-2-9-8-11-10-3-4-12(19)16-17(10,6-7-18-11)14(9)15(13)21-16/h2,5,10-11,16,18H,3-4,6-8H2,1H3/t10-,11+,16-,17-/m1/s1