نتایج جستجو برای: szep products

تعداد نتایج: 291106  

2017
Mark Dow Francesco Marchetti Katherine A Abrahams Luis Vaz Gurdyal S Besra Stuart Warriner Adam Nelson

A modular synthetic approach was developed in which variation of the triplets of building blocks used enabled systematic variation of the macrocyclic scaffolds prepared. The approach was demonstrated in the synthesis of 17 diverse natural product-like macrocyclic scaffolds of varied (12-20-membered) ring size. The biological relevance of the chemical space explored was demonstrated through the ...

2006
SANG V. NGUYEN MICHAEL OLLINGER Sang V. Nguyen

This article investigates the motives for mergers and acquisitions (M&As) in the U.S. meat products industry from 1977 to 1992. Results show that acquired meat and poultry plants were very productive before mergers, and that all but the very largest meat slaughter and processing plants and all but the bottom 20% of the poultry slaughter and processing plants significantly improved their product...

Journal: :Angewandte Chemie 2015
Andrew K Pitts Fionn O'Hara Robert H Snell Matthew J Gaunt

A sequential CH functionalization strategy for the synthesis of the marine alkaloid dictyodendrin B is reported. Our synthesis begins from commercially available 4-bromoindole and involves six direct functionalizations around the heteroarene core as part of a gram-scale strategy towards the natural product.

2003
Hsiao-Wen Chen

On behalf of the survey teams I summarize the designs and results of the Las Campanas Infrared Survey and Gemini Deep Deep Survey, both of which were initiated to understand the nature of red galaxies and to study the history of stellar mass assembly. Our results from luminosity function analysis, ISM absorption line measurements, and spectral synthesis modeling show that near-infrared selected...

Journal: :Critical reviews in food science and nutrition 2010
Diane M Barrett John C Beaulieu Rob Shewfelt

The color, flavor, texture, and the nutritional value of fresh-cut fruit and vegetable products are factors critical to consumer acceptance and the success of these products. In this chapter, desirable and undesirable quality attributes of fresh-cut fruit and vegetable products are reviewed. Both instrumental and sensory measurements for determining these critical quality attributes are discuss...

Journal: :Journal of the American Chemical Society 2005
Jianglong Zhu Nicholas P Grigoriadis Jonathan P Lee John A Porco

An approach to the asymmetric synthesis of the azaphilone natural products is reported involving copper-mediated enantioselective oxidative dearomatization of o-alkynylbenzaldehydes. The approach was successfully applied to the synthesis of (-)-S-15183a and several unnatural azaphilones.

Journal: :Journal of the American Chemical Society 2011
Sergiy Levin Roger R Nani Sarah E Reisman

An enantioselective total synthesis of the diterpenoid natural product (+)-salvileucalin B is reported. Key findings include a copper-catalyzed arene cyclopropanation reaction to provide the unusual norcaradiene core and a reversible retro-Claisen rearrangement of a highly functionalized norcaradiene intermediate.

2017
Henrik Harms Anja Poehlein Andrea Thürmer Gabriele M König Till F Schäberle

Zobellia sp. strain OII3 was isolated from a marine environmental sample due to its heterotrophic lifestyle, i.e., using Escherichia coli cells as prey. It shows strong agar-lytic activity. The genome was assembled into 41 contigs with a total size of 5.4 Mb, revealing the genetic basis for natural product biosynthesis.

Journal: :Chemical & pharmaceutical bulletin 2004
Yoshihide Usami Atsushi Numata

The reactivity of two hydroxy groups in some multioxygenated cyclohexanoids was examined for basic study of the synthesis of the cytotoxic marine natural product pericosine B and related compounds. Differences in reactivity for O-methylation or O-acylation among substrates were observed.

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