871940-23-7Relevant articles and documents
Structural Elucidation and Total Synthesis of Three 9-Norlignans from Curculigo capitulata
Li, Song,Yu, Jin-Hai,Fan, Yao-Yue,Liu, Qun-Fang,Li, Zhan-Chao,Xie, Zhi-Xiang,Li, Ying,Yue, Jian-Min
supporting information, p. 5195 - 5202 (2019/04/25)
Capitulactones A-C, three unprecedented 9-norlignans featuring a unique 3,5-dihydrofuro[2,3-d]oxepin-7(2H)-one scaffold, were isolated from the roots of Curculigo capitulata. Their structures with absolute configurations were unambiguously established by
DBU-Mediated Synthesis of Aryl Acetylenes or 1-Bromoethynylarenes from Aldehydes
Thummala, Yadagiri,Karunakar, Galla V.,Doddi, Venkata Ramana
supporting information, p. 611 - 616 (2019/01/04)
Two well known synthetic organic reactions Ramirez olefination and Corey-fuchs reactions are integrated in one-pot sequential manner for the synthesis of arylacetylenes and 1,3-enynes starting directly from commercially available aldehydes. The bicyclic amidine 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) along with additive NaOH not only exclusively afforded the terminal alkynes directly from the aldehydes, but also enhanced the reaction rate. The dynamic nature of DBU also facilitated the isolation of 1-bromoalkynes intermediate products. Selection of additive from NaOH and H2O served as a switch for the synthesis of terminal alkyne and 1-bromoalkynes, respectively. (Figure presented.).
A convenient synthesis of phenols
Kristianslund, Renate,Vik, Anders,Hansen, Trond V.
supporting information, p. 2809 - 2814 (2018/12/04)
Anilines are rapidly, often within 60 minutes, converted into the corresponding phenols in up to 87% isolated yield. The presented experimentally simple protocol display broad compatibility with a variety of functional groups, and in particular, well suited for the preparation of methyl-substituted phenols. Such phenols are not easily available by other synthetic approaches. The formation of phenolic radical coupling products was not observed even for activated anilines using this open flask method.
1,2,3-Triazole analogs of combretastatin A-4 as potential microtubule-binding agents
Odlo, Kristin,Fournier-Dit-Chabert, Jérémie,Ducki, Sylvie,Gani, Osman A.B.S.M.,Sylte, Ingebrigt,Hansen, Trond Vidar
experimental part, p. 6874 - 6885 (2010/10/19)
A series of cis-restricted 1,4- and 1,5-disubstituted 1,2,3-triazole analogs of combretastatin A-4 (1) have been prepared. Cytotoxicity and tubulin inhibition studies showed that 2-methoxy-5-((5-(3,4,5-trimethoxyphenyl)-1H-1,2, 3-triazol-1-yl)methyl)aniline (5e) and 2-methoxy-5-(1-(3,4,5-trimethoxybenzyl)- 1H-1,2,3-triazol-5-yl)aniline (6e) were two of the most active compounds. Molecular modeling studies revealed that the N-2 and N-3 atoms in the triazole rings in 5e and 6e did not form hydrogen bonds with the amino acids in the anticipated pharmacophore.
Rapid synthesis of triazole-modified resveratrol analogues via click chemistry
Pagliai, Francesca,Pirali, Tracey,Del Grosso, Erika,Di Brisco, Riccardo,Tron, Gian Cesare,Sorba, Giovanni,Genazzani, Armando A.
, p. 467 - 470 (2007/10/03)
Resveratrol is a phytoalexin able to display an array of biological activities. We decided to replace the double bond with a triazole ring using the archetypical click reaction: the Huisgen [3 + 2] cycloaddition. Seventy-two triazole derivatives were synt
Synthetic approach to enyne and enediyne analogues of anticancer agents
Provot, Olivier,Giraud, Anne,Peyrat, Jean-Fran?ois,Alami, Mouad,Brion, Jean-Daniel
, p. 8547 - 8550 (2007/10/03)
The synthesis and the anticancer activity of a new kind of enynes 2 and 3 and enediynes 4, analogues of Combretastatin A-4 1 are reported and discussed.
Synthesis and biological evaluation of vinylogous combretastatin A-4 derivatives
Kaffy, Julia,Pontikis, Renee,Florent, Jean-Claude,Monneret, Claude
, p. 2657 - 2660 (2007/10/03)
Stereospecific syntheses of the Z-E and E-Z vinylogues of combretastatin A-4, and two B-ring related analogues, were achieved through a Suzuki-Miyaura coupling. As compared to CA4, the derivative with a phenyl moiety has shown increased potency in its abi