The insulin secretory action of novel polycyclic guanidines: Discovery through open innovation phenotypic screening, and exploration of structure–activity relationships
摘要:
We report the discovery of the glucose-dependent insulin secretogogue activity of a novel class of polycyclic guanidines through phenotypic screening as part of the Lilly Open Innovation Drug Discovery platform. Three compounds from the University of California, Irvine, 1-3, having the 3-arylhexahydropyrrolo[1,2-c] pyrimidin-1-amine scaffold acted as insulin secretagogues under high, but not low, glucose conditions. Exploration of the structure-activity relationship around the scaffold demonstrated the key role of the guanidine moiety, as well as the importance of two lipophilic regions, and led to the identification of 9h, which stimulated insulin secretion in isolated rat pancreatic islets in a glucose-dependent manner. (C) 2014 The Authors. Published by Elsevier Ltd.
[EN] RET INHIBITORS, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF<br/>[FR] INHIBITEURS DE RET, COMPOSITIONS PHARMACEUTIQUES ET UTILISATIONS ASSOCIÉES
申请人:SUNSHINE LAKE PHARMA CO LTD
公开号:WO2020114494A1
公开(公告)日:2020-06-11
Provided herein are a RET inhibitor, a pharmaceutical composition thereof and uses thereof. In particular, provided is a compound having Formula (I) or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a solvate, a metabolite, a pharmaceutically acceptable salt or a prodrug thereof. Provided is a pharmaceutical composition comprising the compound, and uses of the compound and pharmaceutical composition thereof for the preparation of a medicament, in particular for treatment and prevention of RET-related diseases and conditions, including cancer, irritable bowel syndrome, and/or pain associated with irritable bowel syndrome.
Sonogashira cross-coupling reactions with heteroaryl halides in the presence of a tetraphosphine–palladium catalyst
作者:Marie Feuerstein、Henri Doucet、Maurice Santelli
DOI:10.1016/j.tetlet.2005.01.044
日期:2005.3
Heteroaryl halides undergoes cross-couplings with alkynes in good yields in the presence of [PdCl(C3H5)]2/cis,cis,cis-1,2,3,4-tetrakis(diphenylphosphinomethyl)cyclopentane as catalyst. A variety of heteroaryl halides such as pyridines, quinolines, a pyrimidine, an indole, a thiophene, or a thiazole have been used successfully. The reaction also tolerates several alkynes such as phenylacetylene and
在[PdCl(C 3 H 5)] 2 /顺式,顺式,顺式-1,2,3,4-四(二苯基膦甲基)环戊烷的存在下,杂芳基卤化物与炔烃进行交叉偶联,收率很高。已经成功地使用了各种杂芳基卤化物,例如吡啶,喹啉,嘧啶,吲哚,噻吩或噻唑。该反应还可以耐受几种炔烃,例如苯乙炔和一系列烷-1-炔醇。此外,该催化剂可在低负荷下与某些底物一起使用。
Preparation of monoalkylpiperidines via the mild hydrogenation of monoalkynylpyridines
作者:Toyonobu Usuki、Akira Komatsu
DOI:10.1016/j.tetlet.2017.06.022
日期:2017.7
Monoalkynylpyridines were prepared via a Sonogashira cross-coupling reaction between monoiodopyridines and alkynes. Mild hydrogenation of the obtained monoalkynylpyridines was then conducted to produce the corresponding monoalkylpiperidines in moderate to excellent yields. The hydrogenation reaction was carried out under H2 (1 atm) in the presence of 10 wt% Pd/C (5 eq) in either AcOH or MeOH at room
On the regioselectivity of Pd-catalyzed additions of organoboronic acids to unsymmetrical alkynes
作者:Nakjoon Kim、Ki Seong Kim、Aruna Kumar Gupta、Chang Ho Oh
DOI:10.1039/b316446b
日期:——
The Pd-catalyzed reaction of unsymmetrical alkynes with organoboronicacids gave a mixture of products and, whose ratios were controlled by the electronic as well as steric effects of the substrates.
Photochemical synthesis and properties of axially chiral naphthylpyridines
作者:Pablo Wessig、Charlotte Pick
DOI:10.1016/j.jphotochem.2011.06.006
日期:2011.7
Five alkynyl pyridines were prepared and cyclized to naphthylpyridines as the main products in the course of a Photo-Dehydro-Diels-Alder reaction. Four of the final products are axiallychiral and the determination of the rotational barrier by DFT calculations, dynamic NMR and HPLC experiments is demonstrated.