N-benzyl-5-(4-methoxyphenyl)-1,3,4-thiadiazol-2-amine | 23282-99-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: N-benzyl-5-(4-methoxyphenyl)-1,3,4-thiadiazol-2-amine
• CAS: 23282-99-7
• 化学式: C₁₆H₁₅N₃OS
• 分子量: 297.381
• InChiKey: JJJOMEBNHZJOHD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  21
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  75.3
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  4-methoxy-benzaldehyde 4-benzyl-thiosemicarbazone 在 N-溴代丁二酰亚胺(NBS) 、 过氧化苯甲酰 作用下， 以 四氯化碳 为溶剂， 反应 0.5h， 生成 N-benzyl-5-(4-methoxyphenyl)-1,3,4-thiadiazol-2-amine
  参考文献：
  名称：

  Vakula,T.R. et al., Indian Journal of Chemistry, 1969, vol. 7, p. 577 - 580

  摘要：

  DOI：

文献信息

• Regioselective Synthesis of 2-Amino-Substituted 1,3,4-Oxadiazole and 1,3,4-Thiadiazole Derivatives via Reagent-Based Cyclization of Thiosemicarbazide Intermediate
  作者：Seung-Ju Yang、Seok-Hyeong Lee、Hyun-Jung Kwak、Young-Dae Gong

  DOI：10.1021/jo302324r

  日期：2013.1.18

  is shown in select sets of thiosemicarbazide 3 with R1(benzyl) and R2(phenyl). 2-Amino-1,3,4-oxadiazole 4 was also shown in the reaction of p-TsCl mediated cyclization. The resulting 2-amino-1,3,4-oxadiazole and 2-amino-1,3,4-thiadiazole core skeleton are functionalized with various electrophiles such as alkyl halide, acid halides, and sulfornyl chloride in high yields.

  描述了一种基于区域选择性的基于试剂的2-氨基-1,3,4-恶二唑与2-氨基-1,3,4-噻二唑核心骨架环化反应的方法。使硫代氨基脲中间体3与DMSO中的EDC·HCl或p- TsCl，N-甲基-2-吡咯烷酮中的三乙胺反应，得到相应的2-氨基-1,3,4-恶二唑4和2-氨基-1,3 ，4-噻二唑5通过区域选择环化过程。区域选择性是受两个R 1和R 2在p -TsCl介导的环化。在具有R 1（苄基）和R 2的硫代氨基脲3的精选集中显示（苯基）。在对-TsCl介导的环化反应中还显示了2-氨基-1,3,4-恶二唑4。所得的2-氨基-1,3,4-恶二唑和2-氨基-1,3,4-噻二唑核心骨架被各种亲电试剂如烷基卤，酰卤和磺酰氯高官能度地官能化。
• Design and Synthesis of 1,3,4-Thiadiazole Derivatives as Novel Anticancer and Antitubercular Agents
  作者：D. Chandra Sekhar、D. V. Venkata Rao、A. Tejeswara Rao、U. Lav Kumar、Anjali Jha

  DOI：10.1134/s1070363219040224

  日期：2019.4

  A series of novel 5-phenyl-substituted 1,3,4-thiadiazole-2-amines were designed, synthesized, and screened for their antitumor and antitubercular activities. The target compounds were synthesized starting from isocyanates and acid hydrazides by conventional and microwave-assisted protocols. The structures of the products were confirmed by H-1 NMR, C-13 NMR, high-resolution mass spectrometry, and IR spectroscopy and elemental analysis. Some of the synthesized compounds showed significant invitro antitumor activities against breast cancer and normal human cell lines. Among them, N-benzyl-5-(4-fluorophenyl)-, N-benzyl-5-(4-nitrophenyl)-, and 5-phenyl-N-(p-tolyl)-1,3,4-thiadiazole-2-amines demonstrated higher inhibitory activities against the MDA-MB-231 cell line than the cisplatin control (IC50 3.3 M). N-Benzyl-5-(4-methoxyphenyl)-, 5-phenyl-N-[4-(trifluoromethyl)phenyl]methyl-, N-benzyl-5-(4-fluorophenyl)-, and N-benzyl-5-(4-nitrophenyl)-1,3,4-thiadiazole-2-amines exhibited high inhibitory activities against the HEK293T cell line (IC50 52.63, 42.67, 34.71, and 33.74 M, respectively), which were higher compared to the cisplatin control. In antitubercular activity testing against mycobacterium smegmatis MC155, 5-phenyl-N-[4-(trifluoromethyl)-phenyl]methyl-1,3,4-thiadiazole-2-amine proved to be a more potent agent (MIC 26.46 g/mL) compared to the Isoniazid control (12 g/mL). Potential bioactivities of the synthesized compounds were computed using Molinspiration and Molsoft software tools.
• Versatile strategies for the solid phase synthesis of small heterocyclic scaffolds: [1,3,4]-thiadiazoles and [1,3,4]-oxadiazoles
  作者：Rune Severinsen、John Paul Kilburn、Jesper F. Lau

  DOI：10.1016/j.tet.2005.03.084

  日期：2005.6

  New robust protocols for the solid phase synthesis of 5-alkylthio-, 5-alkyl/aryl-, and 5-acylamino-2-alkylamino-[1,3,4]-thiadiazoles are described based oil a common resin bound thiosemicarbazide. A protocol for the solid phase synthesis of 2-alkyl/aryl-amino-5-alkylamino-[1,3,4]-oxadiazoles from a resin bound semicarbazide is likewise reported. The protocols have been verified by the preparation of four small libraries that all gave products ill good to excellent yields and Purity. (c) 2005 Elsevier Ltd. All rights reserved.