对氟苯甲醛 、 3-甲基-2-吡唑啉-5-酮 在
Santa Barbara Amorphous modified with propylsulfonic acid groups 作用下,
以
neat (no solvent) 为溶剂,
以97%的产率得到4,4'-((4-fluorophenyl)methylene)bis(3-methyl-1H-pyrazol-5-ol)
参考文献:
名称:
SBA-Pr-SO 3 H催化合成联吡唑类化合物作为抗菌剂和磷酸化RET酪氨酸激酶抑制剂
摘要:
在室温下,通过乙酰乙酸乙酯与水合肼在EtOH中的反应制备吡唑啉酮。然后,在SBA-Pr-SO 3存在下,使两当量的吡唑啉酮和一当量的醛反应,合成了作为有吸引力的生物活性化合物的双吡唑衍生物。H在无溶剂条件下于120°C加热。反应时间短(3–6分钟),而产物的收率高(85–97%)。使用Discovery Studio 2.5(Accelrys Inc,美国加利福尼亚州圣地亚哥)将化合物与蛋白质对接。分子对接(GOLD方法)研究表明,吡唑与RET激酶有效结合。接下来,通过圆盘扩散法测试了联吡唑对某些革兰氏阳性和革兰氏阴性细菌的生物学活性以及抗真菌活性。所有化合物均未显示出明显的抗菌活性,但其中两种化合物显示出对白色念珠菌的良好活性。 图形概要
Pyrazolone was prepared through the reaction of ethyl acetoacetate and hydrazine hydrate in EtOH at room temperature. Then, bispyrazole derivatives, as attractive biologically active compounds, were synthesized by reacting two equivalents of prepared pyrazolone and one equivalent of aldehyde in the presence of SBA-Pr-SO3H under solvent-free condition at 120 °C. The reaction time was short (3–6 min), while
在室温下,通过乙酰乙酸乙酯与水合肼在EtOH中的反应制备吡唑啉酮。然后,在SBA-Pr-SO 3存在下,使两当量的吡唑啉酮和一当量的醛反应,合成了作为有吸引力的生物活性化合物的双吡唑衍生物。H在无溶剂条件下于120°C加热。反应时间短(3–6分钟),而产物的收率高(85–97%)。使用Discovery Studio 2.5(Accelrys Inc,美国加利福尼亚州圣地亚哥)将化合物与蛋白质对接。分子对接(GOLD方法)研究表明,吡唑与RET激酶有效结合。接下来,通过圆盘扩散法测试了联吡唑对某些革兰氏阳性和革兰氏阴性细菌的生物学活性以及抗真菌活性。所有化合物均未显示出明显的抗菌活性,但其中两种化合物显示出对白色念珠菌的良好活性。 图形概要
Pyrazolone-type compounds: synthesis and <i>in silico</i> assessment of antiviral potential against key viral proteins of SARS-CoV-2
作者:Jovica Branković、Vesna M. Milovanović、Dušica Simijonović、Slađana Novaković、Zorica D. Petrović、Snežana S. Trifunović、Goran A. Bogdanović、Vladimir P. Petrović
DOI:10.1039/d2ra02542f
日期:——
these proteins suggest that selected compounds could express antiviral properties by blocking the binding to the host cell and viral spreading, also. Moreover, several derivatives expressed multitarget antiviral action, blocking both binding and reproduction processes. Additionally, in silico ADME/T calculations predicted favourable features of the synthesised compounds, i.e., drug-likeness, oral bioavailability
冠状病毒的爆发仍然是一个主要的公共卫生问题。 SARS-CoV-2 的高突变能力会定期产生更多可传播和危险的变体。因此,迫切需要一种高效且廉价的抗病毒药物。在这项工作中,合成了吡唑啉酮型化合物,使用光谱方法和理论工具进行表征,并针对负责宿主细胞进入和繁殖过程的 SARS-CoV-2 蛋白(即刺突蛋白 (S)、M pro )进行了计算机评估。和 PL pro 。二十种化合物中有五种是新合成的。此外,还确定了带有香草醛部分的吡唑啉酮衍生物的晶体结构。计算机结果表明,与药物洛匹那韦、瑞德西韦、氯喹和法匹拉韦相比,吡唑酮类似物对 M pro和 PL pro具有更有利的结合亲和力,而在 S 蛋白的情况下,只有洛匹那韦表现出更高的结合亲和力。此外,还对 ACE2 和刺突 RBD-ACE2 复合物进行了研究。这些蛋白质获得的结果表明,选定的化合物还可以通过阻断与宿主细胞的结合和病毒传播来表达抗病毒特性。
BIS-PYRAZOLYL-METHANE COMPOUNDS AFFECTING KRAS
申请人:Universitat de Barcelona
公开号:EP4393908A1
公开(公告)日:2024-07-03
The present invention relates to compounds of formula I
that can be used as medicaments for example in cancer therapy. The present invention further relates to pharmaceutical composition comprising the compounds as well as intermediates for the preparation of these compounds. In addition, the present invention concerns kits or packages comprising these compounds.
A convenient approach for the synthesis of 4,4'-((substituted phenyl)methylene)bis(3-methyl-1H-pyrazol-5-ol) and their antioxidant and antimicrobial activities
A facile one-pot, three component, convenient approach for the synthesis of 4,4'-((substituted phenyl)methylene)bis(3-methyl-1H-pyrazol-5-ol) derivatives (3a–l) has been accomplished from the react...