由于其作为酶底物和代谢产物的重要性,因此高效合成纯的-2-磷酸d-甘油酯备受关注。因此,我们研究了甘油的简单的一步生物催化磷酸化。来自滨海嗜热菌的甘油-2-激酶在大肠杆菌中表达,易于纯化。选择性甘油-2-激酶催化的磷酸化之后是31 P NMR,并且显示出对甘油的d-对映体磷酸化的极好的对映选择性。这种直接的磷酸化反应和随后的产物分离使对映体纯d的制备成为可能。-2-磷酸甘油酯。使用重组甘油-2-激酶的这种磷酸化反应在更少的反应步骤中和以比化学路线更高的纯度产生了d-甘油2-磷酸。
[EN] STABILITY-MODULATING LINKERS FOR USE WITH ANTIBODY DRUG CONJUGATES<br/>[FR] LIEURS MODULANT LA STABILITÉ DESTINÉS À ÊTRE UTILISÉS AVEC DES CONJUGUÉS ANTICORPS-MÉDICAMENT
申请人:PFIZER
公开号:WO2016030791A1
公开(公告)日:2016-03-03
The present invention provides stability-modulated antibody-drug conjugates, stability-modulating linker components used to make these stability-modulated antibody-drug conjugates, therapeutic methods using stability-modulated antibody-drug conjugates, and methods of making stability modulating linkers and stability-modulated antibody-drug conjugates.
Synthesis and biological evaluation of enantiomerically pure glyceric acid derivatives as LpxC inhibitors
作者:Giovanni Tangherlini、Tullio Torregrossa、Oriana Agoglitta、Jens Köhler、Jelena Melesina、Wolfgang Sippl、Ralph Holl
DOI:10.1016/j.bmc.2016.01.029
日期:2016.3
the inhibitory activity against LpxC, glyceric acid ethers (R)-7a, (S)-7a, (R)-7b, and (S)-7b, lacking the hydroxymethyl group in benzylic position, were synthesized. The compounds were obtained in enantiomericallypure form by a chiral pool synthesis and a lipase-catalyzed enantioselective desymmetrization, respectively. The enantiomeric hydroxamic acids (R)-7b (Ki = 230 nM) and (S)-7b (Ki = 390 nM)
UDP-3-O-[(R)-3-羟基肉豆蔻酰基] -N-乙酰氨基葡糖脱乙酰酶(LpxC)的抑制剂代表了一种有前途的新型抗生素,可以选择性地对抗革兰氏阴性菌。为了阐明二醇的羟甲基(冲击小号,小号) - 4关于对LpxC,甘油酸醚(抑制活性- [R )-图7a,(小号) -图7a,(- [R )-图7b,和(小号)-7b合成了在苄基位置上没有羟甲基的化合物。通过手性库合成和脂肪酶催化的对映选择性去对称化分别以对映体纯的形式获得化合物。对映异构体异羟肟酸(R)-7b(K i = 230 nM)和(S)-7b(K i = 390 nM)显示出有希望的酶抑制作用。但是,它们的抑制活性彼此之间基本上没有区别,从而导致低的eudymic比率。通常,合成的甘油酸衍生物7对两种大肠杆菌显示出抗菌活性。超过各自区域异构体的菌株6。
TANK-BINDING KINASE INHIBITOR COMPOUNDS
申请人:Gilead Sciences, Inc.
公开号:US20160096827A1
公开(公告)日:2016-04-07
Compounds having the following formula (I) and methods of their use and preparation are disclosed:
Synthesis of macrocyclic precursors of the vioprolides
作者:Eibhlin Butler、Lucia Florentino、Damien Cornut、Gonzalo Gomez-Campillos、Hao Liu、Andrew C. Regan、Eric J. Thomas
DOI:10.1039/c8ob01756e
日期:——
important targets for synthesis because of their novel biological activities and challenging chemical structures. Following early work on the synthesis of a modified tetrapeptide that contained both the (E)-dehydrobutyrine and thiazoline components of vioprolide D, problems were encountered in taking an (E)-dehydrobutyrine containing intermediate further into the synthesis. A second approach to vioprolides
Tetrahydropyrazolo[4,3- c ]pyridine derivatives as potent and peripherally selective cannabinoid-1 (CB1) receptor inverse agonists
作者:Bin Zhu、Jay M. Matthews、Mingde Xia、Shawn Black、Cailin Chen、Cuifen Hou、Yin Liang、Yuting Tang、Mark J. Macielag
DOI:10.1016/j.bmcl.2016.09.026
日期:2016.11
metabolic diseases without causing undesired CNS-mediated adverse effects. We identified a series of tetrahydropyrazolo[4,3-c]pyridine derivatives as potent and highly peripherally selective CB1 receptor inverse agonists. This discovery was achieved by introducing polar functional groups into the molecule, which increase the topological polar surface area and reduce its brain-penetrating ability.
周围受限的CB1受体反向激动剂具有潜力,可作为治疗肥胖症和相关代谢疾病的有用疗法,而不会引起不良的CNS介导的不良反应。我们确定了一系列的四氢吡唑并[4,3- c ]吡啶衍生物作为有效的和高度外围选择性的CB1受体反向激动剂。该发现是通过将极性官能团引入分子而实现的,该官能团增加了拓扑极性表面积并降低了其对大脑的穿透能力。