Synthesis and Antibacterial Activities of Optically Active Substituted 1,2-Dihydro-6-oxo-6H-pyrrolo(3,2,1-ij)quinoline-5-carboxylic Acids.
作者:Koichi TSUJI、Hidetsugu TSUBOUCHI、Hiroshi ISHIKAWA
DOI:10.1248/cpb.43.1678
日期:——
A series of optically active substituted 1, 2-dihydro-6-oxo-pyrrolo[3, 2, 1-ij]quinoline-5-carboxylic acids was prepared via optically active 2-methyl-4, 5-difluoroindoline (10) and tested for antibacterial activities. Among them, (2S)-9-[(3R, 1'S)-3-(1'-amino)ethyl-1-pyrrolidinyl]-8-fluoro-1, 2-dihydro-2-methyl-6-oxo-6H-pyrrolo[3, 2, 1, -ij]-quinoline-5-carboxylic acid (19) showed potent activity against gram-positive bacteria and (2S)-8-fluoro-1, 2-dihydro-2-methyl-9-(3-methyl-1-piperazinyl)-6-oxo-6H-pyrrolo[3, 2, 1-ij]quinoline-5-carboxylic acid (16) exhibited well balanced in vitro activity, good intravenous efficacy, and high aqueous solubility.
通过具有光学活性的 2-甲基-4,5-二氟吲哚啉 (10) 制备了一系列具有光学活性的取代 1,2-二氢-6-氧代-吡咯并[3,2,1-ij]喹啉-5-羧酸,并对其进行了抗菌活性测试。其中,(2S)-9-[(3R, 1'S)-3-(1'-氨基)乙基-1-吡咯烷基]-8-氟-1, 2-二氢-2-甲基-6-氧代-6H-吡咯并[3, 2, 1, -ij]-喹啉-5-羧酸(19)对革兰氏阳性菌具有强效活性,而(2S)-8-氟-1、(2S)-8-氟-1, 2-二氢-2-甲基-9-(3-甲基-1-哌嗪基)-6-氧代-6H-吡咯并[3, 2, 1-ij]喹啉-5-羧酸(16)表现出良好的体外活性平衡、良好的静脉注射效力和高水溶性。