Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

A syn-selective synthesis of β-branched α-amino acids has been developed based on the alkylation of glycine imine esters with secondary sulfonates. The potassium counterion for the enolate, the solvent, and the leaving group on the electrophile were key levers to maximize the diasteroselectivity of the alkylation. The optimized conditions enabled a straightforward preparation of a number of β-branched α-amino acids that can be challenging to obtain.

Download full-text PDF

Source
http://dx.doi.org/10.1021/acs.orglett.5b02448DOI Listing

Publication Analysis

Top Keywords

β-branched α-amino
12
α-amino acids
12
syn-selective synthesis
8
synthesis β-branched
8
secondary sulfonates
8
acids alkylation
4
alkylation glycine-derived
4
glycine-derived imines
4
imines secondary
4
sulfonates syn-selective
4

Similar Publications

Autophagy dictates PHGDH-mediated serine metabolism in a timely manner to support oocyte development.

Autophagy

September 2025

Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, P. R. China.

The metabolic co-dependence of the oocyte and surrounding granulosa cells is crucial for oocyte developmental competence. Previous research has shown that serine-glycine and its key downstream metabolites are significantly involved in the process of oocyte maturation. However, the mechanism of serine metabolism and its influence on oocyte maturation remain unclear.

View Article and Find Full Text PDF

ATP2A2 regulates STING1/MITA-driven signal transduction including selective autophagy.

Autophagy

May 2025

Department of Rheumatology and Immunology, State Key Laboratory of Virology and Biosafety, Zhongnan Hospital, Wuhan University, Wuhan, China.

STING1/MITA not only induces innate immune responses but also triggers macroautophagy/autophagy to selectively degrade signaling molecules. However, the molecular mechanisms regulating STING1-mediated selective autophagy remain unclear. Here, we first report that ATP2A2 directly interacts with STING1, regulating STING1-mediated innate immune response by modulating its polymerization and trafficking, thereby inhibiting DNA virus infection.

View Article and Find Full Text PDF

RETREG1/FAM134B is known for its role as a reticulophagy receptor. Our previous study established that RETREG1 is upregulated in hepatocellular carcinoma (HCC) and contributes to disease progression by activating the AKT signaling pathway. However, the specific mechanisms underlying the elevated expression of RETREG1 in HCC remain unclear.

View Article and Find Full Text PDF

Homozygous variants in WDR83OS lead to a neurodevelopmental disorder with hypercholanemia.

Am J Hum Genet

November 2024

Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Section of Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA. Electronic address: pe

Article Synopsis
  • - WDR83OS encodes a protein called Asterix, which works with another protein, CCDC47, to help fold large proteins correctly, specifically those with transmembrane domains.
  • - Recent findings linked mutations in CCDC47 and WDR83OS to trichohepatoneurodevelopmental syndrome, showing consistent symptoms like neurodevelopmental disorders, facial dysmorphism, and liver dysfunction across multiple families.
  • - A zebrafish model lacking Wdr83os function demonstrated its crucial role in the nervous system and lipid absorption, further establishing a connection between WDR83OS mutations and neurological diseases characterized by elevated bile acids.
View Article and Find Full Text PDF

TLR (Toll-like receptor)-21 is a non-mammalian TLR and exhibits a unique function within the innate immune systems of fishes, birds, and amphibians. Despite its important role as PRR (pattern recognition receptor), research on TLR21 in many fish species, as well as in rohu (Labeo rohita), remains relatively limited. This article describes the molecular cloning of LrTLR21 (TLR21 in L.

View Article and Find Full Text PDF