4-Nitropyridine N-oxide has been reported as a quorum-sensing inhibitor, having IC50 value of 24μg/ml. Facile one-pot arylation and alkylation of 4-nitropyridine N-oxide has been reported. 4-Nitropyridine N-oxide can be prepared from pyridine by oxidation 웿 Ɓ ñ ꅄ眓᧘ठࠃ 眓 眓Ȃ Ӥ 楰眜Ӥ 楰眜Ӥ ﰀ眓 ﹴ眓 Б ㆨŲ БṸ�逸眓Ӥ �ۏᾴ�羚眓Љ 诘ख�ۏ隆眓 Ӥ Item倎騁쌮疄㚰ओ铄ڊ⫩뭯䥷傘꧀ڊ 뗤ڊ�傝땔ڊ ओ 敖ﰨ