[EN] GLUCAGON RECEPTOR ANTAGONISTS, PREPARATION AND THERAPEUTIC USES [FR] ANTAGONISTE DES RECEPTEURS DU GLUCAGON, PREPARATION ET UTILISATIONS THERAPEUTIQUES
scaffolds—ortho‐orientated terphenyls presenting twoatropisomeric Ar–Ar axes. These unusual structures were built up by using the C−Hactivation approach, and remarkably, both chiral axes were controlled with excellent stereoselectivity in a single transformation. During the reaction, not only does atroposelective functionalization of a biaryl precursor occur to establish one stereogenic axis, but an
CAMPHOR-DERIVED COMPOUNDS, METHOD FOR MANUFACTURING THE SAME, AND APPLICATION THEREOF
申请人:UANG Biing-Jiun
公开号:US20120077976A1
公开(公告)日:2012-03-29
Camphor-derived compounds are disclosed, which are represented as the following formula (I):
wherein R
1
, R
2
, R
3
, and R
4
each are defined as described in the specification. In addition, a method for manufacturing the camphor-derived compounds and application thereof are disclosed.
[Object] To provide a novel LXRβ agonist that is useful as a preventative and/or therapeutic agent for atherosclerosis; arteriosclerosis such as those resulting from diabetes; dyslipidemia; hypercholesterolemia; lipid-related diseases; inflammatory diseases that are caused by inflammatory cytokines; skin diseases such as allergic skin diseases; diabetes; or Alzheimer's disease.
[Solving Means] A carbinol compound represented by the following general formula (I) or salt thereof, or their solvate.
Dialkylaluminum <i>N</i>,<i>O</i>-Dimethylhydroxylamine Complex as a Reagent to Mask Reactive Carbonyl Groups in Situ from Nucleophiles
作者:Francis J. Barrios、Xuechao Zhang、David A. Colby
DOI:10.1021/ol102495v
日期:2010.12.3
mask carbonylgroups in situ from nucleophilic addition by organolithiums, Grignard reagents, and borohydrides. The utility of this process by selectively adding nucleophiles into carbonylgroups on a variety of structures as well as distinguishing between carbonylgroups on a sensitive natural product is demonstrated. 1H NMR analysis supports the in situ masking of the more reactivecarbonyl group
N,O-二甲基羟胺的铝络合物是有效掩盖羰基的有效试剂,可防止有机锂,格氏试剂和硼氢化物的亲核加成。通过选择性地将亲核试剂添加到各种结构的羰基中以及区分敏感的天然产物上的羰基,证明了该方法的实用性。1 H NMR分析支持对反应性更高的羰基进行原位掩蔽。
Towards more chemically robust polymer-supported chiral catalysts for the reactions of aldehydes with dialkylzincs
作者:Roger J. Kell、Philip Hodge、Mohammad Nisar、David Watson
DOI:10.1016/s0960-894x(02)00276-7
日期:2002.7
N-Methyl-alpha,alpha-diphenyl-L-prolinol derivatives with para-bromo substituents in one or both of the phenyl rings are easily bound to crosslinked polystyrene beads containingphenylboronicacidresidues using Suzuki reactions. When the products were used as catalysts for the reactions of aldehydes with diethylzinc in toluene at 20 degrees C, the alcohols were produced in chemical yields >90% and