COMPOUNDS AND METHODS FOR THE TREATMENT OF PAIN AND OTHER DISEASES
申请人:Sucholeiki Irving
公开号:US20110257222A1
公开(公告)日:2011-10-20
The present invention relates generally to alkyne containing pharmaceutical agents, and in particular, to phenylethynyl-thiophene based metalloprotease inhibitor compounds. More particularly, the present invention provides a new class of MMP inhibiting compounds that exhibit increased potency, metabolic stability and/or reduced toxicity in relation to currently known MMP inhibitors for the treatment of pain and other diseases such as cancer. Additionally, the present invention relates to methods for treating pain in a patient comprising administering to the patient a pain-reducing effective amount of a present compound.
hydrogen–deuterium (H/D) exchange reactions of aminobenzoic acids catalysed by NaBD4‐activated Pd/C or RhCl3 with D2O as the deuteriumsource. We also investigated different NaBD4‐activated metal catalysts (including Pd/C, RhCl3 and Pt/C) under microwave conditions for an efficient H/Dexchange of aromatic and heterocyclic compounds. Even higher deuterium incorporations were obtained for Pd/C and Pt/C catalyst mixtures
Consecutive Methylation Catalyzed by
<scp>TsrM</scp>
, an Atypical Class B Radical
<scp>SAM</scp>
Methylase
作者:Runze Wu、Wei Ding、Qi Zhang
DOI:10.1002/cjoc.202200174
日期:2022.7.15
TsrM is a cobalamin-dependent radical S-adenosylmethionine (SAM) methyltransferase belonging to the ClassBradicalSAMmethylase (RSM) family. This enzyme catalyzes the C-2 methylation of L-tryptophan to produce 2-methyltrytophan (2-MeTrp), an intermediate involved in the biosynthesis of thiostrepton A. In this work, we report characterization of an unexpected activity of TsrM, which carries out an
TsrM 是一种钴胺素依赖性自由基 S-腺苷甲硫氨酸 (SAM) 甲基转移酶,属于 B 类自由基 SAM 甲基化酶 (RSM) 家族。这种酶催化 L-色氨酸的 C-2 甲基化产生2-甲基色氨酸 (2-MeTrp),这是一种参与硫链丝菌肽 A 生物合成的中间体。对产物 2-MeTrp 进行额外的甲基化反应。一系列使用不同色氨酸类似物的同位素标记研究和测定表明,TsrM 能够将甲基从 SAM 转移到 2-MeTrp 的 C4 上以产生 2,4-二甲基色氨酸。这些结果揭示了 TsrM 有趣的底物特异性,进一步扩大了自由基 SAM 超家族酶的反应混杂性。