InChI=1/C14H16N2O4/c1-15(11-14-6-3-8-19-14)7-9-20-13-5-2-4-12(10-13)16(17)18/h2-6,8,10H,7,9,11H2,1H3/p+1/fC14H17N2O4/h15H/q+1 32269496B76DCDC6