Unsaturated half acid esters such as 1 are readily prepared by Stobbe condensation between dialkyl succinate and an aldehyde. Johannes G. de Vries of DSM and Floris P. 1,1-Diethoxy-3-phenylpropan-2-one web…
(+)-6′-Hydroxyarenarol (Anderson) V. T. Perchyonok and Kellie L. Tuck of Monash University found (Tetrahedron Lett. 2008, 49, 4777. DOI: 10.1016/j.tetlet.2008.05.097 ) that a concentrated solution of Bu4NCl and H3PO2 in…
Dactylolide (Jennings), Cytotrienin A (Hayashi), Lepadin B (Charette), Blumiolide C (Altmann) To assemble the framework of the cytotoxic macrolide Amphidinolide X (3), Fèlix Urpí and Jaume Vilarrasa of the Universitat…
F X. Peter Zhang of the University of South Florida extended (Org. PMID:24507727 Lett. 2009, 11, 2273. DOI: 10.1021/ol9005882) Co-catalyzed asymmetric cyclopropanation to the activated ester 2. The product 3…
Enantiomerically-enriched alkoxy stannanes such as 3 are versatile intermediates for synthesis. John R. Falck of UT Southwestern found(Angew. Chem. Int. Ed. 2008, 47, 6586.DOI: 10.1002/anie.200802313)that the simple combination of Bu3SnH…
Te that some allergens via protease- and TLRdependent mechanisms, which don’t involve down-regulation of TGF- or RALDH expression, can antagonize the tolerogenic function of lung tissue M for inducing Foxp3+…
Within the PCR array. Because qRT-PCR would be the accepted regular to compare transcript levels, these information suggest that E2 and 4-OHT might not significantly inhibit CTNNB1, IGFBP3 and AR…
(Cox), Salmochelin SX (Gagné), Botcinin F (Shiina), (-)-Saliniketal B (Paterson), Haterumalide NA (Borhan) Tohru Fukuyama of the University of Tokyo and Toshiyuki Kan of the University of Shizuoka devised (J.…
It has been known for some time that an acid chloride 1 can be added to an alkyne 2 to give the β-chloro enone. Yasushi Tsuji of Kyoto University found…
Takahata), Elatol (Stoltz), 5-F2t-Isoprostane (Snapper), and Ottelione B (Clive) Alkene metathesis has been used to prepare more and more challenging natural products. The first and second generation Grubbs catalysts 1…
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