合成了一系列新的30种对称双吡啶鎓和相关的N-杂芳族双季铵盐与丙烷-1,3-二基连接基,并表征了它们在加利福尼亚鱼雷的烟碱乙酰胆碱受体(nAChR)MB327结合位点的结合亲和力。靶向此结合位点的化合物对于研究针对有机磷酸酯中毒的新型解毒剂特别感兴趣,因为其具有治疗活性,可被4-叔丁基取代的双吡啶鎓盐MB327以前被鉴定为nAChR再敏化剂。通过新开发的方法可以有效地获得目标化合物,该方法可以使具有多种官能团的空间受阻或电子失活的杂环进行N烷基化。使用最近开发的基于质谱(MS)的结合测定法测定对nAChR处MB327结合位点的结合亲和力,结果表明几种化合物的亲和力与MB327相似(p K i = 4.73±0.03)。值得注意的是,发现新制备的亲脂性4-叔丁基-3-苯基取代的双吡啶鎓盐PTM0022(3 h)具有明显更高的结合亲和力,p Ki值为5.16±0.07,代表在开发更有效的nAChR再敏化剂方面取得了可观的进步。
TAU-PROTEIN TARGETING PROTACS AND ASSOCIATED METHODS OF USE
申请人:Arvinas, Inc.
公开号:US20180125821A1
公开(公告)日:2018-05-10
The present disclosure relates to bifunctional compounds, which find utility as modulators of tau protein. In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a VHL or cereblon ligand which binds to the E3 ubiquitin ligase and on the other end a moiety which binds tau protein, such that tau protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of tau. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of tau protein. Diseases or disorders that result from aggregation or accumulation of tau protein are treated or prevented with compounds and compositions of the present disclosure.
CONJUGATES OF CEREBLON BINDING COMPOUNDS AND G12C MUTANT KRAS, HRAS OR NRAS PROTEIN MODULATING COMPOUNDS AND METHODS OF USE THEREOF
申请人:Araxes Pharma LLC
公开号:US20180015087A1
公开(公告)日:2018-01-18
Conjugates of a cereblon-binding compound and compounds having modulatory activity against G12C mutant KRAS, HRAS or NRAS G12C proteins are provided. Methods associated with preparation and use of such conjugates, pharmaceutical compositions comprising such conjugates and methods to modulate the activity of G12C mutant KRAS, HRAS or NRAS G12C proteins for treatment of disorders, such as cancer, are also provided.
PYRAZOLYL-CONTAINING TRICYCLIC DERIVATIVE, PREPARATION METHOD THEREFOR AND USE THEREOF
申请人:Jiangsu Hansoh Pharmaceutical Group Co., Ltd.
公开号:US20200247815A1
公开(公告)日:2020-08-06
The present invention relates to pyrazolyl-containing tricyclic derivative, a preparation method therefor and the use thereof. In particular, the present invention relates to a compound as shown in the general formula (I), a preparation method therefor and a pharmaceutical composition containing the compound, and the use thereof as a protease such as ERK (MAPK) inhibitor in the treatment of cancers, bone diseases, inflammatory diseases, immunological diseases, nervous system diseases, metabolic diseases, respiratory diseases and heart diseases, wherein the definition of each substituent in the general formula (1) is the same as defined in the description.
Convenient Procedure for the α-Methylation of Simple Pyridines
作者:Martin Bröring、Christian Kleeberg
DOI:10.1080/00397910802213745
日期:2008.10.22
mono-α-methylation of pyridines without reactive functional groups. The methylating agent is probably carbon monoxide/dihydrogen generated in situ from a high-boiling alcohol on a metal surface. The reaction is catalyzed by a Raneynickel catalyst at ambient pressure, which renders the protocol practicable in standard organic laboratories. The intrinsically high reaction temperature and long reaction
The invention relates to novel macrocyclic compounds of the formula (I), in which all of the variables are as defined in the specification, the number of ring atoms included in the macrocyclic ring being 14, 15, 16 or 17, in free base form or in acid addition salt form, to their preparation, to their use as medicaments and to medicaments comprising them.