The diaza-Nazarov cyclization involving a 2,3-diaza-pentadienyl cation for the synthesis of polysubstituted pyrazoles
作者:Balakrishna Aegurla、Rama Krishna Peddinti
DOI:10.1039/c7ob01949a
日期:——
diaza-Nazarov (DAN) type cyclization for the construction of substituted pyrazoles from easily available starting materials via an enamine–iminium ion intermediate is described. The oxidative cyclization worked under green conditions with remarkable regioselectivity. This one-pot, efficient and operationally simple three-component intramolecular regioselective DAN cyclization displayed a wide range of
A highly efficient heterogeneous palladium-catalyzed cascade three-component reaction of acid chlorides, terminal alkynes and hydrazines leading to pyrazoles
作者:Qiurong Chen、Fang Yao、Lin Yin、Mingzhong Cai
DOI:10.1016/j.jorganchem.2015.12.037
日期:2016.2
MCM-41-immobilized palladium(II) complex [MCM-41-2N–Pd(OAc)2] and 1.0 mol% of CuI, acid chlorides were coupled with terminal alkynes in Et3N at 50 °C to give α,β-unsaturated ynones, which were converted in situ into pyrazoles by the cycloaddition of hydrazines at room temperature with acetonitrile as cosolvent. The cascade reactions generated a variety of pyrazole derivatives in moderate to good yields, and
NEW DRUG FOR INHIBITING AGGREGATION OF PROTEINS INVOLVED IN DISEASES LINKED TO PROTEIN AGGREGATION AND/OR NEURODEGENERATIVE DISEASES
申请人:Giese Armin
公开号:US20110293520A1
公开(公告)日:2011-12-01
The present invention relates to a compound represented by formula (E). The present invention also relates to a compound represented by the formula (E) for use in the treatment or prevention of diseases linked to protein aggregation and/or neurodegenerative diseases. Moreover, the present invention relates to pharmaceutical and diagnostic compositions comprising the compound of the invention as well as to a kit. Furthermore, the present invention relates to a method of imaging deposits of aggregated protein. A kit for preparing a detectably labelled compound of the present invention is also disclosed. Formula (E) wherein X, Y and L are independently nondirectionally selected from —C(R
1
)(R
2
)—, —C(R
3
)═, —N(R
4
)—, —N═, —N
+
(R
5
)═, —O— and —S—; M and Z are independently nondirectionally selected from formula (I) and formula (II).
Drugs for inhibiting aggregation of proteins invoved in diseases linked to protein aggregation and/or neurodegenerative diseases
申请人:Ludwig-Maximilians-Universität München
公开号:EP2687513A1
公开(公告)日:2014-01-22
The present invention relates to a compound represented by formula (E). The present invention also relates to a compound represented by the formula (E) for use in the treatment or prevention of diseases linked to protein aggregation and/or neurodegenerative diseases. Moreover, the present invention relates to pharmaceutical and diagnostic compositions comprising the compound of the invention as well as to a kit. Furthermore, the present invention relates to a method of imaging deposits of aggregated protein. A kit for preparing a detectably labelled compound of the present invention is also disclosed.
Drug for inhibiting aggregation of proteins involved in diseases linked to protein aggregation and/or neurodegenerative diseases
申请人:LUDWIG-MAXIMILIANS-UNIVERSITAT MUNCHEN
公开号:US10435373B2
公开(公告)日:2019-10-08
The present invention relates to a compound represented by formula (E). The present invention also relates to a compound represented by the formula (E) for use in the treatment or prevention of diseases linked to protein aggregation and/or neurodegenerative diseases. Moreover, the present invention relates to pharmaceutical and diagnostic compositions comprising the compound of the invention as well as to a kit. Furthermore, the present invention relates to a method of imaging deposits of aggregated protein. A kit for preparing a detectably labelled compound of the present invention is also disclosed.