Synthesis and molecular modeling of 1H-pyrrolopyrimidine-2,4-dione derivatives as ligands for the α1-adrenoceptors
摘要:
Three different series of 1H-pyrrolopyrimidine-2,4-dione derivatives were designed and synthesized as ligands for the alpha(1)-adrenergic receptors (alpha(1)-ARs). A microwave-assisted protocol was developed in order to improve purity and yields of some final products. The majority of the synthesized compounds, tested in binding assays, displayed alpha(1)-AR affinities in the nanomolar range. Highest affinity values were found in derivatives 10b and 10c (K-i = 1.4 nM for both) whereas compound 10e was endowed with the best profile in term of alpha(1)-AR affinity (K-i = 2.71 nM) coupled with high selectivity towards 5-HT1A receptors (K-i > 10,000). Molecular docking studies were performed on human alpha(1)-ARs and human 5-HT1A receptors in order to rationalize the observed experimental affinity and selectivity; these computational studies helped to clarify molecular requirements for the design of high-selective alpha(1)-adrenergic ligands. (C) 2011 Elsevier Ltd. All rights reserved.
Synthesis and molecular modeling of 1H-pyrrolopyrimidine-2,4-dione derivatives as ligands for the α1-adrenoceptors
摘要:
Three different series of 1H-pyrrolopyrimidine-2,4-dione derivatives were designed and synthesized as ligands for the alpha(1)-adrenergic receptors (alpha(1)-ARs). A microwave-assisted protocol was developed in order to improve purity and yields of some final products. The majority of the synthesized compounds, tested in binding assays, displayed alpha(1)-AR affinities in the nanomolar range. Highest affinity values were found in derivatives 10b and 10c (K-i = 1.4 nM for both) whereas compound 10e was endowed with the best profile in term of alpha(1)-AR affinity (K-i = 2.71 nM) coupled with high selectivity towards 5-HT1A receptors (K-i > 10,000). Molecular docking studies were performed on human alpha(1)-ARs and human 5-HT1A receptors in order to rationalize the observed experimental affinity and selectivity; these computational studies helped to clarify molecular requirements for the design of high-selective alpha(1)-adrenergic ligands. (C) 2011 Elsevier Ltd. All rights reserved.
Photoinduced Carbon−Heteroatom Cross‐Coupling Catalyzed by Nickel Naphthyridine Complexes
作者:Janet Bahri、Shubham Deolka、Pavan K. Vardhanapu、Eugene Khaskin、Ramadoss Govindarajan、Robert R. Fayzullin、Serhii Vasylevskyi、Julia R. Khusnutdinova
DOI:10.1002/cctc.202301142
日期:2023.12.19
and C‒O cross-coupling reactions catalyzed by NiII complexes supported by 2,7-dimethyl-1,8-naphthyridine ligand. Using the same Ni catalyst and visible light irradiation, both C‒O and C‒N coupling reactivity was observed without additional photocatalysts. These results demonstrate that Ni naphthyridine complexes represent a versatile catalytic motif for photoredox nickel catalysis alternative to commonly
Bockstahler; Wright, Journal of the American Pharmaceutical Association (1912), 1957, vol. 46, p. 542,544
作者:Bockstahler、Wright
DOI:——
日期:——
[EN] THERMOCHROMIC COLOR-MEMORY COMPOSITION AND THERMOCHROMIC COLOR-MEMORY MICROCAPSULE PIGMENT ENCAPSULATING SAME<br/>[FR] COMPOSITION THERMOCHROME À MÉMOIRE DE COULEURS ET PIGMENT EN MICROCAPSULE THERMOCHROME À MÉMOIRE DE COULEURS L'ENCAPSULANT<br/>[JA] 感温変色性色彩記憶性組成物及びそれを内包した感温変色性色彩記憶性マイクロカプセル顔料