Standard InChI: InChI=1S/C20H22N2O3/c1-11(23)13-10-22-8-7-20-14-5-3-4-6-15(14)21-18(20)17(19(24)25-2)12(13)9-16(20)22/h3-6,12-13,16,21H,7-10H2,1-2H3/t12-,13+,16-,20+/m0/s1
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