2,4-Diamino-5-benzylpyrimidines and analogs as antibacterial agents. 11. Quinolylmethyl analogs with basic substituents conveying specificity
作者:Steven E. Davis、Barbara S. Rauckman、Joseph H. Chan、Barbara Roth
DOI:10.1021/jm00128a041
日期:1989.8
A series of nine 2,4-diamino-5-[6-( or 7-)quinolylmethyl]pyrimidines has been prepared by condensations of quinolinecarboxaldehydes with beta-anilinopropionitriles, followed by treatment with guanidine. All compounds has basic or methoxy substituents at the 2- or 4-positions of the quinoline ring. All of the 6-quinolylmethyl derivatives were highly inhibitory against Escherichia coli dihydrofolate
通过将喹啉甲醛与β-苯胺基丙腈缩合,然后用胍处理,制备了一系列九个2,4-二氨基-5- [6-(或7-)喹啉基甲基]嘧啶。所有化合物在喹啉环的2-或4-位具有碱性或甲氧基取代基。所有6-喹啉基甲基衍生物均对大肠杆菌二氢叶酸还原酶(DHFR)具有高度抑制作用,前提是喹啉环中存在8位取代基。相对于脊椎动物对应物,在喹啉环的2位具有碱性取代基的那些化合物对细菌二氢叶酸DHFR也具有高度特异性。喹啉环氮上的质子化可能是特异性的原因。