Mono‐ or bidentate boron Lewisacids trigger a regioselective magnesiation or zincation of pyridazine in position C3 (ortho product) or C4 (meta product). The regioselectivity of the metalation was rationalized with the help of calculated pKa values of both pyridazine and pyridazine/Lewisacid complexes.
单或二齿硼路易斯酸在位置C3(邻位产物)或C4(间位产物)处引发哒嗪的区域选择性镁化或锌化。借助于计算的哒嗪和哒嗪/路易斯酸络合物的p K a值,使金属化的区域选择性合理化。
COMPOUNDS AND METHODS FOR ANALYSIS AND SYNTHESIS OF SACCHARIDE COMPOUNDS
申请人:ACADEMIA SINICA
公开号:US20150168415A1
公开(公告)日:2015-06-18
Provided is an isotope-labelled compound having a general formula IIa′, S-Y′-BIM, wherein S is a sugar moiety, Y′ is an isotope-containing sensor moiety and BIM is a benzimidazole. The compound may be used as an agent for saccharide analysis by magnetic resonance spectroscopy (NMR). A new glycan sequencing method and a glycoprotein synthesis method by using these compounds are also provided.
Synthesis, molecular modelling and anticancer evaluation of new pyrrolo[1,2-<i>b</i>]pyridazine and pyrrolo[2,1-<i>a</i>]phthalazine derivatives
作者:Lacramioara Popovici、Roxana-Maria Amarandi、Ionel I. Mangalagiu、Violeta Mangalagiu、Ramona Danac
DOI:10.1080/14756366.2018.1550085
日期:2019.1.1
of heterocyclic derivatives with potential anticancer activity, in which a pyrrolo[1,2-b]pyridazine or a pyrrolo[2,1-a]phthalazine moiety was introduced in place of the 3′-hydroxy-4′-methoxyphenyl ring of phenstatin have been synthesised and their structure-activity relationship (SAR) was studied. Fourteen of the new compounds were evaluated for their in vitro cytotoxic activity by National Cancer Institute
摘要 两个具有潜在抗癌活性的新杂环衍生物系列,其中引入吡咯并[1,2- b ]哒嗪或吡咯并[2,1- a ]酞嗪部分代替3'-羟基-4'-甲氧基苯基合成了苯司他丁环并研究了它们的构效关系(SAR)。美国国家癌症研究所 (NCI) 针对 60 种人类肿瘤细胞系评估了 14 种新化合物的体外细胞毒活性。在第二阶段五剂量反应研究中筛选了体外生长抑制方面最好的五种化合物,其中三种对结肠、卵巢、肾、前列腺等多种细胞系显示出非常好的抗增殖活性,GI 50 <100 nM 、脑癌和乳腺癌、黑色素瘤和白血病。生物活性化合物的对接实验显示与微管蛋白秋水仙碱结合位点具有良好的相容性。
Azabicyclic heterocycles as cannabinoid receptor modulators
申请人:Ewing R. William
公开号:US20060287323A1
公开(公告)日:2006-12-21
The present application describes compounds according to Formula I, pharmaceutical compositions comprising at least one compound according to Formula I and optionally one or more additional therapeutic agents and methods of treatment using the compounds according to Formula I both alone and in combination with one or more additional therapeutic agents. The compounds have the general Formula I and Formula II:
including all prodrugs, pharmaceutically acceptable salts and stereoisomers, R
1
, R
2
, R
3
and R
4
are described herein.
[EN] ANTI-INFLAMMATORY AND PROTEIN KINASE INHIBITOR COMPOSITION AND METHOD OF USE<br/>[FR] COMPOSITION ANTI-INFLAMMATOIRE ET INHIBITRICE DE LA PROTEINE KINASE ET METHODE D'UTILISATION
申请人:UNIV NORTHWESTERN
公开号:WO2003018563A1
公开(公告)日:2003-03-06
A novel class of pyridazine compositions and related methods of use.