Synthesis and antibacterial activity of 7-hydrazinoquinolones
摘要:
A series of new C-7 substituted hydrazino quinolones and naphthyridines were prepared and tested for antibacterial activity. The hydrazine bridge at the C-7 position did not favor the antibacterial activity, whereas the nature of other substituents at N-1, C-5 and C-8 did noticeably influence the antibacterial activity. The 7-(1-aminomorpholino) derivatives exhibited superior antibacterial activity against Gram-positive and inferior activity against Gram-negative bacteria than the 7-(1-aminopiperazinyl) derivatives. Substitution of the quinolone at position-1 with cyclopropyl was the most beneficial for antibacterial activity among the series of compounds prepared. (C) Elsevier, Paris.
A series of new C-7 substituted hydrazino quinolones and naphthyridines were prepared and tested for antibacterial activity. The hydrazine bridge at the C-7 position did not favor the antibacterial activity, whereas the nature of other substituents at N-1, C-5 and C-8 did noticeably influence the antibacterial activity. The 7-(1-aminomorpholino) derivatives exhibited superior antibacterial activity against Gram-positive and inferior activity against Gram-negative bacteria than the 7-(1-aminopiperazinyl) derivatives. Substitution of the quinolone at position-1 with cyclopropyl was the most beneficial for antibacterial activity among the series of compounds prepared. (C) Elsevier, Paris.