3,4-Dimethoxybenzaldehyde semicarbazone | 5346-37-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 3,4-Dimethoxybenzaldehyde semicarbazone
• 英文别名: Veratrumaldehyd-semicarbazon；veratraldehyde-semicarbazone；2-[(3,4-dimethoxyphenyl)methylene]-hydrazinecarboxamide；[(3,4-dimethoxyphenyl)methylideneamino]urea
• CAS: 5346-37-2
• 化学式: C₁₀H₁₃N₃O₃
• mdl: MFCD00995186
• 分子量: 223.232
• InChiKey: PZGBQOUDZACWFL-UHFFFAOYSA-N

物化性质

• 熔点：
  175 °C
• 密度：
  1.24±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  85.9
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• 海关编码：
  2928000090

反应信息

• 作为反应物：
  描述：

  3,4-Dimethoxybenzaldehyde semicarbazone 在 potassium dichromate 、 三氯化铝 作用下， 反应 0.08h， 以95%的产率得到3,4-二甲氧基苯甲醛
  参考文献：
  名称：

  在路易斯酸存在下用重铬酸钾高效、无溶剂氧化有机化合物

  摘要：

  描述了在路易斯酸存在下在固相条件下重铬酸钾的合成效用。该试剂有效地将醇类、酰基化合物、肟和缩氨基脲氧化成相应的羰基化合物，而三甲基甲硅烷基和四氢吡喃基醚、乙缩醛和缩酮进行氧化脱保护以有效地产生羰基化合物。

  DOI：

  10.3390/61100900
• 作为产物：
  描述：

  3,4-二甲氧基苯甲醛 生成 3,4-Dimethoxybenzaldehyde semicarbazone
  参考文献：
  名称：

  92.α-和β-羟基月桂肌苷。第二部分 彻底甲基化的产物

  摘要：

  DOI：

  10.1039/jr9370000427

文献信息

• Facile Method for the Conversion of Semicarbazones/Thiosemicarbazones into Azines (Under Microwave Irradiation) and Oxadiazoles (by Grinding)
  作者：Gautam Chattopadhyay、Partha Sinha Ray

  DOI：10.1080/00397911.2010.515334

  日期：2011.9.1

  Abstract In an effective transformation, semicarbazones/thiosemicarbazones are smoothly converted into azines under microwave irradition. Oxadiazoles are also obtained from semicarbazones by reaction with bromine generated in situ via a grinding reaction in the solid phase.

  摘要 在有效的转化过程中，缩氨基脲/缩氨基硫脲在微波照射下顺利转化为吖嗪。恶二唑也可通过与通过固相研磨反应原位产生的溴反应而从缩氨基脲反应获得。
• Regeneration of carbonyl compounds from semicarbazones by copper (II) chloride dihydrate
  作者：Ram N. Ram、Kiran Varsha

  DOI：10.1016/s0040-4039(00)93567-6

  日期：1991.10

  Semicarbazones are chemoselectively hydrolysed to carbonyl compounds in high yields by copper (II) chloride dihydrate on refluxing in acetonitrile.

  通过在乙腈中回流，二水合氯化铜（II）将半咔唑酮高化学选择性地水解为羰基化合物。
• Synthesis, Antileishmanial Activity and in silico Studies of Aminoguanidine Hydrazones (AGH) and Thiosemicarbazones (TSC) Against Leishmania chagasi Amastigotes
  作者：Thiago M. de Aquino、Paulo H. B. França、Érica E. E. S. Rodrigues、Igor. J.S. Nascimento、Paulo F. S. Santos-Júnior、Pedro G. V. Aquino、Mariana S. Santos、Aline C. Queiroz、Morgana V. Araújo、Magna S. Alexandre-Moreira、Raiza R. L. Rodrigues、Klinger A. F. Rodrigues、Johnnatan D. Freitas、Jacques Bricard、Mario R. Meneghetti、Jean-Jacques Bourguignon、Martine Schmitt、Edeildo F. da Silva-Júnior、João X. de Araújo-Júnior

  DOI：10.2174/1573406417666210216154428

  日期：2022.2

  Leishmaniasis is a worldwide health problem, highly endemic in developing countries. Among the four main clinical forms of the disease, visceral leishmaniasis is the most severe, fatal in 95% of cases. The undesired side-effects from first-line chemotherapy and the reported drug resistance search for effective drugs that can replace or supplement those currently used an urgent need. Aminoguanidine hydrazones (AGH's) have been explored for exhibiting a diverse spectrum of biological activities, in particular the antileishmanial activity of MGBG. The bioisosteres thiosemicarbazones (TSC's) offer a similar biological activity diversity, including antiprotozoal effects against Leishmania species and Trypanosoma cruzi.

  Considering the impact of leishmaniasis worldwide, this work aimed to design, synthesize, and perform a screening upon L. chagasi amastigotes and for the cytotoxicity of the small "in-house" library of both AGH and TSC derivatives and their structurally-related compounds.

  A set of AGH's (3-7), TSC's (9, 10), and semicarbazones (11) were initially synthesized. Subsequently, different semi-constrained analogs were designed and also prepared, including thiazolidines (12), dihydrothiazines (13), imidazolines (15), pyrimidines (16, 18) azines (19, 20), and benzotriazepinones (23-25). All intermediates and target compounds were obtained with satisfactory yields and exhibited spectral data consistent with their structures. All final compounds were evaluated against L. chagasi amastigotes and J774.A1 cell line. Molecular docking was performed towards trypanothione reductase using GOLD® software.

  The AGH's 3i, 4a, and 5d, and the TSC's 9i, 9k, and 9o were selected as valuable hits. These compounds presented antileishmanial activity compared with pentamidine, showing IC50 values ranged from 0.6 to 7.27 μM, maximal effects up to 55.3%, and satisfactory SI values (ranged from 11 to 87). On the other hand, most of the resulting semi-constrained analogs were found cytotoxic or presented reduced antileishmanial activity. In general, TSC class is more promising than its isosteric AGH analogs, and the beneficial aromatic substituent effects are not similar in both series. In silico studies have suggested that these hits are capable of inhibiting the trypanothione reductase from the amastigote forms.

  The promising antileishmanial activity of three AGH’s and three TSC’s was characterized. These compounds presented antileishmanial activity compared with PTD, showing IC50 values ranged from 0.6 to 7.27 μM, and satisfactory SI values. Further pharmacological assays involving other Leishmania strains are under progress, which will help to choose the best hits for in vivo experiments.

  背景：利什曼病是全球性健康问题，在发展中国家高度流行。在该病的四种主要临床形式中，内脏利什曼病是最严重的，95%的病例会致命。由于一线化疗药物的不良副作用和报道的药物耐药性，迫切需要寻找可以替代或补充当前使用的有效药物。氨基胍脒肼酮（AGH）已被探索用于展示多样的生物活性，特别是MGBG的抗利什曼病活性。生物同功异构体硫脲半胱氨酮（TSC）提供类似的生物活性多样性，包括对利什曼病和克氏锥虫的抗原虫效应。 目的：考虑到利什曼病在全球范围内的影响，本研究旨在设计、合成并对L. chagasi阿马斯蒂果虫进行筛选，以及对小型“内部”AGH和TSC衍生物及其结构相关化合物的细胞毒性进行评估。 方法：首先合成了一组AGH（3-7）、TSC（9, 10）和半胱氨酮（11）。随后，设计并制备了不同的半约束类似物，包括噻唑烷（12）、二氢噻嗪（13）、咪唑烷（15）、嘧啶（16, 18）、吲哚烷（19, 20）和苯并三唑环酮（23-25）。所有中间体和目标化合物均以满意的收率获得，并展示了与其结构一致的光谱数据。所有最终化合物均对L. chagasi阿马斯蒂果虫和J774.A1细胞系进行了评估。使用GOLD®软件对其进行了针对巯基还原酶的分子对接。 结果：AGH的3i、4a和5d以及TSC的9i、9k和9o被选为有价值的命中物。这些化合物与五环胺相比具有抗利什曼病活性，IC50值范围从0.6到7.27μM，最大效果高达55.3％，满意的SI值（范围从11到87）。另一方面，大多数结果的半约束类似物被发现具有细胞毒性或具有降低的抗利什曼病活性。总体而言，TSC类比其同功异构AGH类更有前景，而有益的芳香族取代作用在两个系列中并不相似。计算机模拟研究表明这些命中物能够抑制阿马斯蒂果虫的巯基还原酶。 结论：三种AGH和三种TSC的有前景的抗利什曼病活性得到了表征。这些化合物与PTD相比具有抗利什曼病活性，IC50值范围从0.6到7.27μM，SI值满意。正在进行涉及其他利什曼病菌株的进一步药理学评估，这将有助于选择最佳的命中物进行体内实验。
• Thermolysis of Semicarbazones to the Corresponding Azines Through Reactive N-Substituted Isocyanate Intermediates
  作者：S. Shah、N. Chudgar

  DOI：10.3390/50400657

  日期：——

  April 2000Abstract: Thermolysis of semicarbazones (I) to azines (II) occurs through reactive N-substi-tuted isocyanate intermediates (Ia) which can be converted in situ to carbamates and N-substituted ureas.Keywords: Thermolysis, Semicarbazones, Azines, N-substituted isocyanates, Mesogeniccompounds.IntroductionThe isocyanate group is one of the most important synthons and intermediates in Organic Chemistry[1]

  现地址：南密西西比大学聚合物科学研究中心，哈蒂斯堡，39406，MS，美国*通讯作者。收件日期：2000 年 1 月 3 日；修订形式：2000 年 4 月 2 日/接受：2000 年 4 月 4 日/发表：2000 年 4 月 7 日摘要：缩氨基脲 (I) 热解为吖嗪 (II) 通过反应性 N-取代的异氰酸酯中间体 (Ia) 发生，该中间体可以原位转化为氨基甲酸酯和N-取代脲。关键词：热解，缩氨基脲，肼，N-取代异氰酸酯，介晶化合物。引言异氰酸酯基团是有机化学中最重要的合成子和中间体之一[1]。有多种方法可以生成这些反应性中间体，但其中大多数需要使用危险的起始材料 [2-6]。在过去的十年里，
• Synthesis of a Series of Novel 2-Amino-5-substituted 1,3,4-oxadiazole and 1,3,4-thiadiazole Derivatives as Potential Anticancer, Antifungal and Antibacterial Agents
  作者：Em Canh Pham、Tuyen Ngoc Truong、Nguyen Hanh Dong、Duy Duc Vo、Tuoi Thi Hong Do

  DOI：10.2174/1573406417666210803170637

  日期：2022.5

  MS spectra. The antibacterial and antifungal activities were evaluated by diffusion method and the anticancer activities were evaluated by MTT assay. RESULTS Twenty-seven derivatives have been synthesized in moderate to good yields. A number of derivatives exhibited potential antibacterial, antifungal and anticancer activities. CONCLUSION Compounds (1b, 1e and 1g) showed antibacterial activity against

  背景技术许多含有五元杂环的化合物显示出特殊的化学性质和多种生物活性。目的本研究的目的是制备5-取代2-氨基-1,3,4-恶二唑和2-氨基-1,3,4-噻二唑衍生物并评价其潜在的抗癌、抗菌和抗真菌活性。方法通过碘介导的氨基脲或氨基硫脲与醛缩合得到的氨基脲或氨基氨基硫脲环化合成27个衍生物。结构通过1H-NMR、13C-NMR和MS光谱证实。采用扩散法评价抗菌和抗真菌活性，采用MTT法评价抗癌活性。结果 以中等至良好的产率合成了 27 种衍生物。许多衍生物表现出潜在的抗菌、抗真菌和抗癌活性。结论化合物(1b、1e和1g)对粪链球菌、MSSA和MRSA具有抗菌活性，MIC值在4～64 μg/mL之间。化合物（2g）对白色念珠菌（8μg/mL）和黑曲霉（64μg/mL）显示出抗真菌活性。化合物(1o)对HepG2细胞系表现出高细胞毒活性(IC50值为8.6 μM)，与紫杉醇的活性相当，对LLC-P