4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs
申请人:DeAngelis Alan
公开号:US20060058393A1
公开(公告)日:2006-03-16
The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR modulators to treat or inhibit the progression of, for example, dyslipidemia.
peptidomimetics serve as biologically active compounds or as intermediates for other peptidyl isosteres. The N-terminal side of the C=C bond could be easily prepared in an opticallypure form from α-amino acids. Synthesis of C-terminal building blocks in an opticallypure form is more challenging. We developed a chemoenzymatic stereoselective approach to such optically active C-terminal building blocks to
肽基烯烃肽模拟物用作生物活性化合物或用作其他肽基等排体的中间体。C=C 键的 N 端侧可以很容易地从 α-氨基酸以光学纯的形式制备。以光学纯形式合成 C 端结构单元更具挑战性。我们开发了一种化学酶立体选择性方法,用于通过各种反应组装成肽基烯烃的光学活性 C 端结构单元。它们包括亲电子醛和亲核砜、鏻盐、膦酸盐和二硒化物。前手性二酯到相应羟基酯的关键酶水解引入了光学活性。随后化学反应的顺序,无论是保护-水解-功能化还是功能化-水解-保护,
Optimization of cyclic sulfamide derivatives as 11β-hydroxysteroid dehydrogenase 1 inhibitors for the potential treatment of ischemic brain injury
作者:Jeong Hyun Lee、Ju Hwan Bok、Sung Bum Park、Haushabhau S. Pagire、Yoon-Ju Na、Eunyoung Rim、Won Hoon Jung、Jin Sook Song、Nam Sook Kang、Ho Won Seo、Kwan-Young Jung、Byung Ho Lee、Ki Young Kim、Jin Hee Ahn
DOI:10.1016/j.bmcl.2019.126787
日期:2020.1
therapeutic target for various disease conditions. Moreover, a recent study demonstrated that selective 11β-HSD1 inhibitor can attenuate ischemic brain injury. This prompted us to optimize cyclic sulfamidederivative for aiming to treat ischemic brain injury. Among the synthesized compounds, 6e has an excellent in vitro activivity with an IC50 value of 1 nM toward human and mouse 11β-HSD1 and showed good
Nickel-Catalyzed Asymmetric Kumada Cross-Coupling of Symmetric Cyclic Sulfates
作者:Meredith S. Eno、Alexander Lu、James P. Morken
DOI:10.1021/jacs.6b03384
日期:2016.6.29
Nickel-catalyzed enantioselective cross-couplings between symmetric cyclic sulfates and aromatic Grignard reagents are described. These reactions are effective with a broad range of substituted cyclic sulfates and deliver products with asymmetric tertiary carbon centers. Mechanistic experiments point to a stereoinvertive SN2-like oxidative addition of a nickel complex to the electrophilic substrate
Dinuclear Zinc-Catalyzed Asymmetric Desymmetrization of Acyclic 2-Substituted-1,3-Propanediols: A Powerful Entry into Chiral Building Blocks
作者:Barry M. Trost、Sushant Malhotra、Takashi Mino、Naomi S. Rajapaksa
DOI:10.1002/chem.200800623
日期:2008.8.28
The asymmetric acylation of meso-2-substituted-1,3-propanediols by using an amphoteric chiraldinuclear zinc catalyst is described. It is has been demonstrated that both 2-alkyl- and 2-aryl-1,3-propanediols can be desymmetrized in high yields and enantioselectivities by using the same family of ligands. Given that both antipodes of the chiral catalyst are available, both enantiomers of the desymmetrized