Polycyclic<i>N</i>-hetero compounds.<b>XLIII.</b>Syntheses and properties of 2-substituted 1-acetoxy-6-acetyl-5,6-dihydro-4<i>H</i>-imidazo[1′,2′:1,6]-pyrimido[5,4-<i>d</i>][1]benzazepines<i>via</i><i>N</i>-(6,7-dihydro-5<i>H</i>-pyrimido[5,4-<i>d</i>]-[1]benzazepin-4-yl)amino acids and their analogous mesoionic compounds, and their related compounds as a series of potential blood platelet aggregation inhibitors
作者:Tomohisa Nagamatsu、Yoshiji Hantani、Kenji Sasaki、Hiromi Ohtomo、Taiji Nakayama、Takashi Hirota
DOI:10.1002/jhet.5570300140
日期:1993.1
on the skeleton, 5,6-dihydro-4H-thiazolo[3′,2′:1,6]pyrimido[5,4-d][1]benzazepiniurn-1-one (12) was similarly prepared by treatment of 2-(6,7-dihydro-5H-pyrimido[5,4-d][1]benzazepm-4-ylthio)acetic acid (11) with excess acetic anhydride. Their inhibitory activities against collagen-induced aggregation of rabbit blood platelets in vitro were also investigated, and some heterocycles exhibited from a two-
N-(6,7-dihydro-5 H -pyrimido [5,4- d ] [1] benzazepin-4-yl)氨基酸3a-h,6和9a,b的加热环化方法的研究与过量的乙酸酐制备2-取代的1-乙酰氧基-6-乙酰基-5,6-二氢-4 H-咪唑并[1,2':1,6]吡啶基[5,4- d ] [1]已制得苯并ze庚因4a-h以及四环和五环的中离子化合物7和10a,b。另外,在骨架上具有硫原子的四环中离子化合物,5,6-二氢-4 H-噻唑并[3',2':1,6]嘧啶并[5,4- d ] [1]苯并iu庚因-1 -一(12)类似地通过用过量的乙酸酐处理2-(6,7-二氢-5 H-嘧啶[5,4- d ] [1]苯甲zepm -4-基硫基)乙酸(11)来制备。还研究了它们在体外对胶原蛋白诱导的兔血小板凝集的抑制活性,并且某些杂环与阿司匹林相比,具有更强的2到4倍的活性。