1 FOI Methyl 3-{[(5s)-1-(hydroxyamino)-5h-inden-5-yl]amino}furo[2,3-C]pyridine-2-carboxylate 1.000 2 SM6 Ethyl 3-{[1-(hydroxyamino)-2h-inden-5-yl]amino}thieno[2,3-C]pyridine-2-carboxylate 0.889