Results 121 to 130 of about 24,581 (324)

Thiophene Derivatives as Versatile Precursors for (Hetero)Arene and Natural Product Synthesis

open access: yesAngewandte Chemie International Edition, EarlyView.
Hidden but Powerful: Thiophenes and their saturated analogues have been demonstrated to be versatile C4‐building blocks that can be rapidly applied to natural product synthesis and the construction of functionalized (hetero)arenes. This minireview aims to provide a concise overview of the strategies and implementations of these sulfur‐containing ...
Anna Keimer, Franz‐Lucas Haut
wiley   +1 more source

Novel Approaches For The Synthesis Of Amino Acids And Piperidines, Including Asymmetric Strategies [PDF]

open access: yes, 2012
Chapter I deals with novel approaches for α-amino acids. This chapter has been divided into three sections. Section A describes the synthesis of α-amino acids via the Beckmann rearrangement of carboxyl-protected β-keto acid oximes.
Vippila, Mohana Rao
core   +1 more source

Design and synthesis of a fragment set based on twisted bicyclic lactams

open access: yes, 2018
Current fragment sets tend to be dominated by flatter molecules, and their shape diversity does not reflect that of the fragments that are theoretically possible.
Hassan, H, Marsden, S, Nelson, AS
core   +1 more source

Frontispiece: Efficient Synthesis of Dimeric Oxazoles, Piperidines and Tetrahydroisoquinolines from N‐Substituted 2‐Oxazolones [PDF]

open access: bronze, 2016
Yun He   +11 more
openalex   +1 more source

Research progress of donepezil for treating mild to moderate Alzheimer's disease

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2017
Donepezil is the second generation of cholinesterase inhibitors (ChEIs), which has a good effect on mild to moderate Alzheimer's disease (AD). In recent years, there were a lot of studies on the mechanism of donepezil. This paper mainly introduces the
Xin-xin LI, Yun-yun ZHANG, Bin WANG
doaj  

Mesoionic N‐Heterocyclic Olefins, Imines, Thiones, Phosphinidenes and Their Application in Catalysis

open access: yesAngewandte Chemie International Edition, EarlyView.
This minireview covers recent advances in the synthesis, reactivity, and metal‐free catalytic uses of mesoionic N‐heterocyclic olefins (mNHOs), imines (mNHIs), thiones (mNHTs), and phosphinidenes (mNHPs). Abstract Transition metal compounds are widely known for their ability to activate small molecules and are excellent catalysts for a wide range of ...
Subir Maji   +3 more
wiley   +1 more source

Synthesis of fused tetrazolo iminosugars from azido monosaccharide derivatives [PDF]

open access: yes, 2014
Synthesis of fused tetrazolo iminosugars from azido monosaccharide derivativesUniversidad de Málaga.
Pino-Gonzalez, Maria Soledad
core  

II. SAR studies of pyridyl–piperazinyl-piperidine derivatives as CXCR3 chemokine antagonists

open access: green, 2010
Yuefei Shao   +18 more
openalex   +1 more source

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