The addition of hydrazine to functionalizedfurans 2a–d leads to a variety of 4,4′-bipyrazoles 4a–c depending on the structure of the starting materials. In one example, compound 2c was first converted to an intermediate, furo[3,4-d]pyridazine 3c which was then transformed into 4,4′-bipyrazole 4c on reacting with hydrazine.
根据原料的结构,将肼添加到官能化的呋喃2a - d中可生成各种4,4'-联吡唑4a - c。在一个实施例中,首先将化合物2c转化为中间体呋喃并[3,4- d ]哒嗪3c,然后与肼反应将其转化为4,4'-联吡唑4c。
Westoeoe, Acta Chemica Scandinavica (1947), 1959, vol. 13, p. 683,687
作者:Westoeoe
DOI:——
日期:——
Identification of novel furo[2,3-<i>d</i>]pyrimidine based chalcones as potent anti-breast cancer agents: synthesis, <i>in vitro</i> and <i>in vivo</i> biological evaluation
作者:Mai A. Mansour、Mamdouh A. Oraby、Zeinab A. Muhammad、Deena S. Lasheen、Hatem M. Gaber、Khaled A. M. Abouzid
DOI:10.1039/d2ra00889k
日期:——
Various substituted synthetic chalcones demonstrated potent anti-cancer activities. In the current study a series of novel furo[2,3-d]pyrimidine based chalcones were synthesized as potential anticancer agents. Among the different substituted derivatives, two of the halogen bearing chalcones, 5d and 5e, demonstrated potent anti-proliferative activity against an NCI 59 cell line, with mean GI50 values
各种取代的合成查耳酮显示出有效的抗癌活性。在当前的研究中,合成了一系列基于呋喃并[2,3- d ]嘧啶的新型查尔酮作为潜在的抗癌剂。在不同的取代衍生物中,两种含卤素查耳酮5d和5e对 NCI 59 细胞系表现出有效的抗增殖活性,平均 GI 50值分别为 2.41 μM 和 1.23 μM。此外,与阿霉素相比,两种化合物对耐药 MCF-7 细胞系均表现出显着的细胞毒活性( 5d ;1.20± 0.21,5e ;1.90±0.32)。 3.30±0.18。这样的结果引发了一项体内抗癌评估研究的启动,其中化合物5e显示了与阿霉素相当的结果。