The present invention relates to compounds according to formula 1,
which exhibit cytotoxic activity. The compounds may be used in the treatment of cancer.
本发明涉及符合式1的化合物,具有细胞毒活性。这些化合物可用于治疗癌症。
<i>C</i><sub>1</sub>-Symmetric Oxazolinyl Sulfoximines as Ligands in Copper-Catalyzed Asymmetric Mukaiyama Aldol Reactions
作者:Jörg Sedelmeier、Tim Hammerer、Carsten Bolm
DOI:10.1021/ol703065x
日期:2008.3.1
Aryl-bridged C1-symmetric oxazolinyl sulfoximines are applicable in copper-catalyzedasymmetricMukaiyamaaldolreactions with methyl pyruvate. The resulting alpha-hydroxy esters have been obtained with up to 94% ee in good yields. They contain a quaternary stereogenic center and represent valuable precursors for biologically active molecules.
Chiral dihydrobenzo[1,4]oxazines as catalysts for the asymmetric transfer-hydrogenation of α,β-unsaturated aldehydes
作者:Christian Ebner、Andreas Pfaltz
DOI:10.1016/j.tet.2011.10.051
日期:2011.12
A new class of organocatalysts based on the structure of 2,3-dihydrobenzo[1,4]oxazine was prepared and applied in the enantioselective transfer-hydrogenation of α,β-unsaturatedaldehydes with Hantzsch ester as hydride donor. These catalysts proved to be particularly effective for the conjugate reduction of β,β-diaryl-substituted acrylaldehydes leading to saturated aldehydes bearing a stereogenic center
2-AMINOBENZOXAZOLE CARBOXAMIDES AS 5HT3 MODULATORS
申请人:Yang Zhicai
公开号:US20080255114A1
公开(公告)日:2008-10-16
Compounds of formulae I, II and III:
are disclosed as 5-HT3 inhibitors. The compounds are useful in treating CINV, IBS-D and other diseases and conditions.
Stereochemical analysis of chiral amines, diamines, and amino alcohols: Practical chiroptical sensing based on dynamic covalent chemistry
作者:Diandra S. Hassan、F. Yushra Thanzeel、Christian Wolf
DOI:10.1002/chir.23185
日期:2020.4
Practical chiroptical sensing with a small group of commercially available aromatic aldehydes is demonstrated. Schiff base formation between the electron‐deficient 2,4‐dinitrobenzaldehyde probe and either primary amines, diamines, or amino alcohols proceeds smoothly in chloroform at room temperature and is completed in the presence of molecular sieves within 2.5 hours. The substrate binding coincides