作者:Masahiro Fujita、Hiroshi Egawa、Katsumi Chiba、Jun-Ichi Matsumoto
DOI:10.1002/jhet.5570340615
日期:1997.11
2-h]quinoline-3,7-dicarboxylate (5). This regioselective cyclization was rationalized by the Hard and Soft Acids and Bases principle. By use of a similar furan-forming reaction, we prepared 2-(amino-methyl)furo[3,2-h]quinoline-7-carboxylic acid 4. Compound 4 showed weak antibacterial activity.
1-环丙基-6,7,8-三氟-1,4-二氢-4-氧代喹啉-3-羧酸乙酯(6)与乙酰乙酸叔丁酯的一锅反应得到3-叔丁基7-乙基9 -环丙基-4-氟-6,9-二氢-2-甲基-6-氧呋喃[3,2 - h ]喹啉-3,7-二羧酸酯(5)。该区域选择性环化通过硬酸和软酸和碱原理进行了合理化。通过使用类似的呋喃形成反应,我们制备了2-(氨基-甲基)呋喃[3,2 - h ]喹啉-7-羧酸4。化合物4显示弱的抗菌活性。