2174-64-3Relevant articles and documents
Structural elucidation, total synthesis, and cytotoxic activity of effphenol A
Chen, Shanchong,Chen, Yuchan,Dong, Chunmao,Liu, Hongxin,Liu, Zhaoming,Tan, Haibo,Zhang, Weimin,Zhang, Xiao
, p. 9035 - 9038 (2020)
A highly substituted phenol derivative, effphenol A (1), was isolated from the deep-sea-derived fungus Trichobotrys effuse FS524. Its complete structural assignment was established through a combination of spectroscopic analysis together with single-crystal X-ray diffraction experiments and further unequivocally confirmed by a biomimetic total synthesis. Structurally, effphenol A possesses a poly-substituted 6-5/6/6 tetracyclic ring system, which represents the first case of such a skeleton found in nature. Furthermore, the cytotoxic activity of effphenol A (1) toward four human cancer cell lines was assayed. This journal is
Selective Catalytic Methylation of Phloroglucinol with Dimethyl Carbonate in the Presence of Heterogeneous Acids
Lui, Matthew Y.,Noè, Marco,Masters, Anthony F.,Maschmeyer, Thomas
, p. 6249 - 6255 (2018)
A facile process for the methylation of phloroglucinol using environmentally friendly dimethyl carbonate as methylating agent and solvent is described. Widely available and inexpensive solid acids have been used as catalysts to promote this transformation. H-Y zeolite proved particularly selective for monomethylation, hence it has been used for the convenient preparation of methoxyresorcinol (MR), with only limited co-production of dimethoxyphenol (DMP). Conversely, the use of tungstosilicic acid on silica easily afforded DMP in excellent isolated yield.
Total syntheses of hyperaspidinols A and B enabled by a bioinspired diastereoselective cascade sequence
Chen, Huiyu,Lu, Xiuxiang,Tan, Haibo,Wang, Sasa,Zhang, Wenge,Zheng, Anquan,Zhou, Tingting
supporting information, (2021/09/03)
A bioinspired acid-triggered hemiacetalization/dehydration/[3 + 3]-type cycloaddition cascade process was disclosed, diastereoselectively furnishing furo[2,3-b]chromene skeleton under mild conditions. The viability of this approach was demonstrated by syntheses of a series of furo[2,3-b]chromene and pyrano[2,3-b]chromene derivatives. The successful total syntheses of two lignan-phloroglucinol hybrids, hyperaspidinols A and B, exemplified the synthetic utility of our biomimetic methodology.
Design, synthesis, and biological activity studies of a new class of sulfonated aurones: First synthesis of acidoaurone isolated from Phyllanthus acidus
Venkateswarlu, Somepalli,Murty, Gandrotu Narasimha,Satyanarayana, Meka,Siddaiah, Vidavalur
, p. 2324 - 2333 (2021/09/25)
A novel series of aurones were designed by introducing sulfonic acid group on ring-A and ring-B of known natural aurones such as hispidol, sulfuretin, maritimetin, and aureusidin. These sulfonated aurones were synthesized by a unique approach. Sulfonation on ring-A or ring-B converts water-insoluble aurones into highly water-soluble aurones. The sulfonated aurones were tested for their antioxidant, antiinflammatory, and AChE inhibition activities along with their natural aurones. Ring-A sulfonated aurones displayed higher antioxidant activity, 5-LOX, and AChE inhibition in comparison with their corresponding natural aurones. Ring-B sulfonated aurones exhibited potent 5-LOX inhibitory activity and significant antioxidant activity. Acidoaurone, a first sulfonated aurone isolated from Phyllanthus acidus was synthesized for the first time and was well characterized using NMR, LC–MS, and further confirmed by HMBC.
