First selective direct mono-arylation of piperidines using ruthenium-catalyzed C–H activation
摘要:
A Ru-catalyzed mono-arylation in alpha-position of saturated cyclic amines is reported employing a C-H activation protocol. Substitution of the pyridine directing group with a bulky group, e.g., trifluoromethyl in the 3-position, proved to be crucial to avoid bis-arylation. This highly selective transformation can be performed with different amines and arylboronate esters. Additionally, the directing group can be cleaved, taking advantage of an unprecedented detrifluoromethylation reaction.
[EN] NON-LYSOSOMAL GLUCOSYLCERAMIDASE INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE GLUCOSYLCÉRAMIDASE NON LYSOSOMALE ET LEURS UTILISATIONS
申请人:ALECTOS THERAPEUTICS INC
公开号:WO2020229968A1
公开(公告)日:2020-11-19
The invention provides compounds for inhibiting glucosylceramidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds.
Ruthenium(II) Biscarboxylate-Catalyzed Borylations of C(sp<sup>2</sup>
)−H and C(sp<sup>3</sup>
)−H Bonds
作者:Suman De Sarkar、N. Y. Phani Kumar、Lutz Ackermann
DOI:10.1002/chem.201604943
日期:2017.1.1
Versatile borylations of C(sp2)−H and C(sp3)−H were achieved with ruthenium(II) biscarboxylate complexes. The robust nature of the ruthenium(II) catalyst enabled C(sp3)−Hborylation on pyrrolidines, piperidines, and azepanes with ample scope and excellent positional selectivity control.
[EN] NON-LYSOSOMAL GLUCOSYLCERAMIDASE INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE GLUCOSYLCÉRAMIDASES NON LYSOSOMALES ET LEURS UTILISATIONS
申请人:ALECTOS THERAPEUTICS INC
公开号:WO2021224864A1
公开(公告)日:2021-11-11
The invention provides compounds for inhibiting glucosylceramidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds.
We disclose the development of the Rh-catalyzed amine-directed remote 5,6-carboamination protocol of pyridines via dual Csp2–H functionalizations. A variety of readily available 2-aminopyridines and 1,2,3-triazoles are allowed for coupling cyclization to access polyfunctionalized azaindoles. Mechanistic studies including DFT calculations unveil that relay carbenoid-electrophilic addition to pyridines
A Rh-catalyzed amine-directed cross-coupling of 2-aminopyridines with 1-sulfonyl-triazoles has been developed. The method provides an efficient approach to access 5-aminovinylpyridines with wide functional group tolerance.