The reactions of 7-hydroxy-1,2,2,4-tetramethylhydroquinoline-6-carbaldehydes with methyl 3-oxopentanedioate were used to synthesize 3-oxo-3-(6,8,8,9-tetramethyl-2-oxo-2H-pyrano[3,2-g]quinolin-3-yl)propanoates with various degrees of hydrogenation in the pyridine ring, the condensation of which with carboximidamides provided a series of new 6,8,8,9-tetramethyl-3-(6-oxo-1,6-dihydropyrimidin-4-yl)-2H-pyrano[3,2-g]quinolin-2-ones. It was found that some compounds of this class exhibited relatively high inhibitory activity against the blood coagulation factors Xа and XIa.
7-羟基-1,2,2,4-
四甲基氢醌-6-
甲醛与甲基3-氧代
戊二酸的反应被用于合成了一系列在
吡啶环上具有不同程度氢化的3-氧代-3-(6,8,8,9-四甲基-2-氧代-
2H-吡喃并[3,2-g]
喹啉-3-基)
丙酸酯,这些化合物与羧基
咪唑胺的缩合反应提供了一系列新的6,8,8,9-四甲基-3-(6-氧代-1,6-二氢
嘧啶-4-基)-
2H-吡喃并[3,2-g]
喹啉-2-酮。研究发现,这类化合物中有一些表现出对血液凝固因子Xа和XIa相对较高的抑制活性。