InChI=1/C20H22N2O6/c1-3-10-21(12-15-13-27-18-6-4-5-7-19(18)28-15)20(23)16-11-14(26-2)8-9-17(16)22(24)25/h4-9,11,15H,3,10,12-13H2,1-2H3/t15-/m0/s1 13CAC297FB47D9EC