نتایج جستجو برای: multicomponent reactions mcrs

تعداد نتایج: 175438  

Journal: :SynOpen 2021

Abstract An efficient and straightforward approach has been established for the preparation of a new class depsipeptide structures via isocyanide-based consecutive Bargellini–Passerini multicomponent reactions. 3-Carboxamido-isobutyric acids bearing an amide bond were obtained Bargellini reaction from isocyanides, acetone, chloroform in presence sodium hydroxide. Next, Passerini multicomponent-...

2007
Patrick Minnis Jianping Huang Bing Lin Yuhong Yi Robert F. Arduini Tai-Fang Fan J. Kirk Ayers Gerald G. Mace

[1] A multilayered cloud retrieval system (MCRS) is updated and used to estimate ice water path in maritime ice-over-water clouds using Visible and Infrared Scanner (VIRS) and Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) measurements acquired over the Tropics between January and August 1998. Lookup tables of top-of-atmosphere 0.65-mm reflectance are developed for ice-over-w...

Journal: :Nordic Psychology 2021

Cognitive reserve (CR) refers to individual differences in cognitive processing that can protect from and compensate for functional decline related ageing or brain pathology. The CR theory postulates attaining an active cognitively stimulating lifestyle accumulate CR. Reserve Scale (CRS) is a questionnaire measures lifelong attainment leisure activities. This cross-sectional study aimed examine...

Journal: :European Journal of Neurology 2021

Background and purpose Cerebral small vessel disease is characterized by progressive white matter hyperintensities (WMH) cognitive decline. However, variability exists in how individuals maintain capabilities despite significant neuropathology. The relationships between individual reserve, psychological resilience functioning were examined subjects with varying degrees of WMH. Methods In the He...

Aza heterocyclic compounds are major interest for organic chemists because of their mainly pharmacological activities and clinical applications such as antianxiety, antitumor, anticonvulsant, cardiotonic and vasorelaxant. This contribution describes an electrochemical approach for the preparation of nanosized particles of phthalazine in high yields and very short reaction time. The method is ba...

2013
Shwetha Ramachandrappa Rebecca J. Gorrigan Adrian J. L. Clark Li F. Chan

The five melanocortin receptors (MCRs) named MC1R-MC5R have diverse physiological roles encompassing pigmentation, steroidogenesis, energy homeostasis and feeding behavior as well as exocrine function. Since their identification almost 20 years ago much has been learnt about these receptors. As well as interacting with their endogenous ligands the melanocortin peptides, there is now a growing l...

One of the important Multi-component reaction (MCRs) is the synthesis of dihydropyrano chromene derivatives by one-pot reaction. In this research, an inexpensive and effective one pot three component procedure with good yields for the synthesis of dihydro pyrano chromenes is reported. In this method, the synthesis of pyrano chromene derivatives was followed by using 4-hydroxycoumarin, malononit...

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