InChI=1/C21H18N2O4/c24-20-18-12-4-3-5-13(9-8-12)19(18)21(25)22(20)16-10-11-17(23(26)27)15-7-2-1-6-14(15)16/h1-2,6-13,18-19H,3-5H2/t12-,13+,18-,19+	E7A4F7496EA29E7F