534595-85-2Relevant articles and documents
Asymmetric Reductive Amination/Ring-Closing Cascade: Direct Synthesis of Enantioenriched Biaryl-Bridged NH Lactams
Zhang, Yao,Liu, Yun-Qi,Hu, Le'An,Zhang, Xumu,Yin, Qin
supporting information, p. 6479 - 6483 (2020/09/02)
We report here a Ru-catalyzed enantioselective synthesis of biaryl-bridged NH lactams through asymmetric reductive amination and a spontaneous ring-closing cascade from keto esters and NH4OAc with H2 as reductant. The reaction features broad substrate generality and high enantioselectivities (up to >99percent ee). To showcase the practical utility, a highly enantioselective synthesis of 5-ethylindolobenzazepinone C, a promising antimitotic agent, has been rapidly completed. Furthermore, the amide group in the products enables versatile elaborations through directed C-H functionalization.
Flexible synthesis of isomeric pyranoindolones and evaluation of cytotoxicity towards HeLa cells
Jeyaveeran,Praveen, Chandrasekar,Arun,Prince,Perumal
, p. 787 - 802 (2016/05/19)
A hybrid pharmacophore approach for the synthesis of isomeric pyranoindolones was achieved by employing gold(III) chloride-catalyzed cycloisomerization of alkyne-tethered indole carboxylic acids in good to excellent yield. All the synthesized compounds were evaluated for their tumor cell growth inhibitory activity against human cervix adenocarcinoma (HeLa) which revealed that three compounds exhibited activity comparable with the standard cis-platin (IC50 = 0.08 μM). Molecular docking of all the compounds in Vaccinia H1-Related (VHR) Phosphatase receptor also supported that compound 7d as the most active with a free energy of binding as ?8.27 kcal/mol. [Figure not available: see fulltext.]
Gold(III) chloride catalyzed regioselective synthesis of pyrano[3,4-b]indol-1(9H)-ones and evaluation of anticancer potential towards human cervix adenocarcinoma
Praveen, Chandrasekaran,Ayyanar, Asairajan,Perumal, Paramasivan Thirumalai
, p. 4170 - 4173 (2011/08/06)
A highly regioselective synthesis of pyrano[3,4-b]indol-1(9H)-ones via gold(III) chloride catalyzed cycloisomerization of 3-ethynyl-indole-2-carboxylic acid was achieved in good to excellent yields. These compounds were screened for their in vitro cytotoxicity against human cervical (HeLa) cell lines. Out of ten compounds, three compounds (7d, 7e and 7j) showed comparable proliferation inhibitory activity against the standard drug cisplatin. Compound 7d was found to be the most efficacious with IC50 value of 0.22 μM.