N-[1-(3-amino-1-benzofuran-2-yl)ethylidene]hydroxylamine

2-chloro-N-[2-[1-(hydroxyamino)ethylidene]-1-benzofuran-3-ylidene]acetamide

4-hydroxy-5-methyl-3H-[1]benzofuro[3,2-e][1,4]diazepin-2-one

5-methyl-3,4-dihydro-[1]benzofuro[3,2-e][1,4]diazepin-2-one

ethyl N-(2-acetyl-1-benzofuran-3-yl)carbamate