δ-Hydroxy-β-keto esters and δ,β-dihydroxy esters are characteristic structural motifs of statin-type natural products and drug candidates. Here, we describe the synthesis of functionalized δ-hydroxy-β-keto esters in good yields and excellent enantioselectivities using Chan's diene and modified Mukaiyama-aldol reaction conditions. Diastereoselective reduction of δ,β-dihydroxy esters afforded the respective syn- and anti-diols, and saponification yielded the corresponding acids. All products were evaluated for their anti-inflammatory properties, which uncovered a surprising structure-activity relationship.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9314795PMC
http://dx.doi.org/10.1002/cbic.202200073DOI Listing

Publication Analysis

Top Keywords

δ-hydroxy-β-keto esters
12
synthesis functionalized
8
functionalized δ-hydroxy-β-keto
8
anti-inflammatory properties
8
δβ-dihydroxy esters
8
esters
5
esters evaluation
4
evaluation anti-inflammatory
4
properties δ-hydroxy-β-keto
4
esters δβ-dihydroxy
4

Similar Publications

Maternal obesity puts the offspring at high risk of developing obesity and cardio-metabolic diseases in adulthood. Here, we utilized a mouse model of maternal high-fat diet (HFD)-induced obesity that recapitulates metabolic perturbations seen in humans. We show increased adiposity in the offspring of HFD-fed mothers (Off-HFD) when compared to the offspring regular diet-fed mothers (Off-RD).

View Article and Find Full Text PDF

Skin Hydration by Natural Moisturizing Factors, a Story of H-Bond Networking.

J Phys Chem B

January 2025

INSERM U1248 Pharmacology & Transplantation, Univ. Limoges, CBRS, 2 Rue du Prof. Descottes, F-87000 Limoges, France.

Dry skin is a common condition that is experienced by many. Besides being particularly present during the cold season, various diseases exist all year round, leading to localized xerosis. To prevent it, the skin is provided with natural moisturizing factors (NMFs).

View Article and Find Full Text PDF

Pd-catalyzed Asymmetric Hydrogenolysis Rearrangement of Allylic Esters to Access Axially Chiral Olefins.

Angew Chem Int Ed Engl

January 2025

Dalian University of Technology, School of Chemical Engineering, No 2 Linggong Road,Ganjingzi District, 116024, Dalian, CHINA.

The Pd-catalyzed asymmetric hydrogenolysis rearrangement of allylic acetates using (s-Bu)3BHK has been described, achieving the synthesis of axially chiral alkylidene cycloalkanes with excellent enantioselectivities (up to 99% ee) and a wide substrate scope (30 examples of cyclohexanes and cyclobutanes). To the best of our knowledge, this is the first time to achieve synthesis of axially chiral olefins via asymmetric hydrogenolysis of allylic acetates. This methodology not only offers a novel synthetic pathway for non-atropisomeric axially chiral structures but also highlights the potential of asymmetric hydrogenolysis as a powerful tool in synthetic organic chemistry.

View Article and Find Full Text PDF

Background: Heart failure with preserved ejection fraction (HFpEF) is linked to prolonged endoplasmic reticulum (ER) stress. P21-activated kinase 2 (Pak2) facilitates a protective ER stress response. This study explores the mechanism and role of Pak2 in HFpEF pathology.

View Article and Find Full Text PDF

We herein disclose the synthesis of a bicyclo [5,1,0]-octane ring system consisting of a cycloheptane core fused with a cyclopropane unit of naturally occurring sesquiterpene capillosanane V. Initially, an unsuccessful RCM reaction of a properly functionalized bis-olefinic precursor was attempted. Finally, an intramolecular Reformatsky reaction was employed to construct the cycloheptane core present in the target structure.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!