根据先前的研究表明indicating基团和唑环对血小板的抗凝活性具有药理作用,合成了一系列结构中同时具有hydr和唑(咪唑)环的化合物,并评估了它们对血小板凝集的抑制作用。这些1-(亚芳基氨基)-4-芳基-1H-咪唑-2-胺衍生物中的两种,化合物4a [((E)-1-(苄叉基氨基)-4-苯基-1H-咪唑-2-胺]和4 p [(E)-4-苯基-1-((噻吩-2-基亚甲基)氨基)-1H-咪唑-2-胺]的IC50值类似于乙酰水杨酸作为胶原蛋白的血小板聚集诱导剂。
2-Amino-1-arylidenaminoimidazoles, a novel class of orally (po) active microtubule-destabilizing anticancer agents, were synthesized. The compounds were designed from a hit compound identified in a drug discovery platform by using cancer cell-based high throughput screening, assay. Selective synthesized compounds exerted cell cytotoxicity against human cancer cells. The underlying mechanisms for the anticancer activity were demonstrated as interacting with the tubulins and inhibiting, microtubule assembly, leading to proliferation inhibition and apoptosis induction in the human tumor cells. Furthermore, two compounds showed in vivo anticancer activities in both po and intravenously (iv) administered routes and prolonged the life spans of murine leukemic P388 cells-inoculated mice. These new po active anti mitotic anticancer agents are to be further examined in preclinical studies and developed for clinical uses.
Rational Design and Synthesis of 1-(Arylideneamino)-4-aryl-1<i>H</i>
-imidazole-2-amine Derivatives as Antiplatelet Agents
Based on previous studies indicating the pharmacophoric role of a hydrazone group and azole rings for antiplatelet aggregation activity, a few series of compounds with both hydrazone and an azole (imidazole) ring in their structures were synthesized, and their platelet aggregation inhibitory effects were evaluated. Two of these 1-(arylideneamino)-4-aryl-1H-imidazole-2-amine derivatives, compounds 4 a
根据先前的研究表明indicating基团和唑环对血小板的抗凝活性具有药理作用,合成了一系列结构中同时具有hydr和唑(咪唑)环的化合物,并评估了它们对血小板凝集的抑制作用。这些1-(亚芳基氨基)-4-芳基-1H-咪唑-2-胺衍生物中的两种,化合物4a [((E)-1-(苄叉基氨基)-4-苯基-1H-咪唑-2-胺]和4 p [(E)-4-苯基-1-((噻吩-2-基亚甲基)氨基)-1H-咪唑-2-胺]的IC50值类似于乙酰水杨酸作为胶原蛋白的血小板聚集诱导剂。
2-Amino-4-aryl-1-arylideneaminoimidazoles and Acylation Products: A Multinuclear ( 1 H, 13 C, 15 N) NMR Study
作者:Zolt�n Gy�rgyde�k、Gy�rgy Szab�、Wolfgang Holzer
DOI:10.1007/s00706-003-0104-3
日期:2004.2.1
The structure of 2-amino-4-aryl-1-arylideneaminoimidazoles in DMSO -d6 solution was investigated by means of NMR spectroscopic methods (1H, 13C, 15N). From these data the ( E )-configuration at the excocyclic C=N bond and a strong preference for the conformer with the imidazole H-5 and the N=CH proton being spatially close (s- trans regarding the N–N bond) can be concluded. Reaction of the title compounds
通过NMR光谱法(1 H,13 C,15 N)研究了 DMSO -d 6溶液中的2-氨基-4-芳基-1-芳基亚氨基氨基咪唑的结构 。根据这些数据,在环外C = N键处的( E )-构型以及对带有咪唑H-5和N = CH质子在空间上接近(s- trans 关于N–N键)可以得出结论。标题化合物与乙酸酐的反应导致2-氨基上的单酰基和二酰基化,而新戊酸酐处理仅得到相应的单酰基产物。单酰化和二酰化产物表现出与母体化合物相似的构型和构象性质。