Synthesis and anticancer activity of ruthenium half-sandwich complexes comprising combined metal centrochirality and planar chirality
作者:Elisabeth K. Martin、Nicholas Pagano、Madeline E. Sherlock、Klaus Harms、Eric Meggers
DOI:10.1016/j.ica.2014.08.057
日期:2014.11
scaffold in which the stereochemical complexity is increased. The investigated ruthenium η 5 -cyclopentadienyl half-sandwichcomplexes contain a bidentate pyridocarbazole and a monodentate CO ligand, thereby leading to four different stereoisomers due to the combined presence of ruthenium-centered chirality and planar chirality of the π -coordinated trisubstituted cyclopentadienyl moiety (two diastereomers
[EN] BENZOIMIDAZOLE DERIVATIVES AND GLYCOGEN SYNTHASE KINASE-3 BETA INHIBITORS CONTAINING THE SAME<br/>[FR] DÉRIVÉS DE BENZIMIDAZOLE ET INHIBITEURS DE GLYCOGÈNE SYNTHASE KINASE-3-BÊTA CONTENANT CEUX-CI
申请人:ONCOTHERAPY SCIENCE INC
公开号:WO2010014794A1
公开(公告)日:2010-02-04
Benzoimidazole Derivatives are provided. The compounds of the present invention are useful for Glycogen Synthase Kinase-3 Beta Inhibitors.
苯并咪唑衍生物已提供。本发明的化合物对于糖原合成酶激酶-3β抑制剂是有用的。
Quinazoline Derivatives
申请人:Allgeier Hans
公开号:US20070208018A1
公开(公告)日:2007-09-06
The present invention relates to 1H-Quinazoline-2,4-dione derivatives of formula(I)
wherein the substituents are defined as in the specification, their preparation, their use as pharmaceuticals, and pharmaceutical compositions containing them.
PROTEASE CATALYZED IN SITU END CAPPING OF OLIGOPEPTIDES IN AQUEOUS MEDIA
申请人:Gross Richard A.
公开号:US20110287479A1
公开(公告)日:2011-11-24
One-pot biotransformations give oligo(γ-
L
-Et-Glu) decorated with selected amine-functionalized end-groups at C-termini with a first process controlling the end group structure of peptides synthesized by protease catalyzed peptide synthesis, and a second process incorporating end-groups that can be used directly or after further modification as polymerizable entities. Papain, bromelain, α-chymotrypsin, Multifect P-3000 and Purafect prime 4000L are used as catalysts for oligomerization of γ-
L
-(Et)
2
-Glu in the presence of mono functional amines. The series of amine nucleophiles (NH
2
—R, acyl acceptors) mimic phenylalanine in that they possess aromatic rings linked to amine groups by one or more methylenes. Generally, addition of increased quantities of NH
2
—R from 0 to 30, 50 and 70 mol % with respect to γ-
L
-(Et)
2
-Glu results in decreased %-yield but increased mol % of NH
2
—R end-capped oligo(γ-
L
-Et-Glu)-NH—R (determined by NMR). Irrespective of the protease used, 2-thiophene methyl amine (TPMA) gave the highest fraction of oligo(γ-
L
-Et-Glu)-NH—R chains. l-phenylalanine and
L
-histidine did not produce end-capped oligo(γ-
L
-Et-Glu) and, inn contrast,
L
-phenylalanine analogs benzylamine (BzA) and
L
-phenylalaminol (F—OH), both of which lack the α-carboxyl group, gave substantial quantities of oligo(γ-
L
-Et-Glu)-F—OH, or -BzA chains. The promiscuity of proteases can be exploited to create a diverse family of desired end-functionalized oligopeptides. MALDI-TOF spectra recorded of oligo(γ-
L
-Et-Glu) with amine nucleophiles showed molecular ions that affirmed the formation of corresponding NH
2
—R functionalized oligo(γ-
L
-Et-Glu).
一锅法生物转化反应可在C-末端以选择的胺基官能团修饰的寡聚(γ-L-Et-Glu)上进行,第一个过程控制了蛋白酶催化合成肽的末端基团结构,第二个过程则将可直接使用或经过进一步修饰后用作聚合物化实体的末端基团结构合并进来。在单官能胺的存在下,Papain、bromelain、α-胰蛋白酶、Multifect P-3000和Purafect prime 4000L被用作γ-L-(Et)2-Glu的寡聚化催化剂。一系列胺亲核试剂(NH2—R,酰基受体)模仿苯丙氨酸,因为它们具有芳香环,该芳香环通过一个或多个亚甲基与胺基相连。通常,将NH2—R的量从0增加到30、50和70摩尔%与γ-L-(Et)2-Glu相比,会导致产率下降但NH2—R末端封闭的寡聚(γ-L-Et-Glu)-NH—R的摩尔%增加(通过NMR确定)。无论使用哪种蛋白酶,2-噻吩甲基胺(TPMA)都给出了NH2—R功能化寡聚(γ-L-Et-Glu)链的最高分数。L-苯丙氨酸和L-组氨酸不会产生末端封闭的寡聚(γ-L-Et-Glu),相反,L-苯丙氨酸类似物苄胺(BzA)和L-苯丙氨醇(F—OH)(两者都缺少α-羧基)产生了大量的寡聚(γ-L-Et-Glu)-F—OH或-BzA链。蛋白酶的多样性可以被利用来创建所需的末端官能化寡肽家族。与胺亲核试剂一起记录的MALDI-TOF光谱显示了分子离子,证实了相应的NH2—R功能化寡聚(γ-L-Et-Glu)的形成。
Benzoimidazole Derivatives and Glycogen Synthase Kinase-3 Beta Inhibitors Containing the Same
申请人:Ohtani Mitsuaki
公开号:US20110190351A1
公开(公告)日:2011-08-04
Benzoimidazole Derivatives are provided. The compounds of the present invention are useful for Glycogen Synthase Kinase-3 Beta Inhibitors.