نتایج جستجو برای: szep products

تعداد نتایج: 291106  

2010
M. M. Hannan A. Dutta H. Kabir

A variation of the Almost Ideal Demand System (AIDS) model of Deaton and Muellbauer (1980) has been employed to determine the impacts of per capita total expenditure, food prices and demographic variables on household demand for dairy products in Bangladesh. The budget shares are generally more responsive to per capita total expenditure than to prices. With respect to demographic effects, it is...

Journal: :Organic letters 2001
D A Evans K A Scheidt C W Downey

The synthesis of (-)-epibatidine has been accomplished utilizing a highly exo-selective asymmetric hetero Diels-Alder reaction. The key steps employed to transform the resulting bicycle into the natural product include a fluoride-promoted fragmentation and a Hofmann rearrangement. Reaction: see text.

Journal: :Molecules 2017
Juan Zhang Hua Zhang Luis Alexandre Muehlmann Cheng-Shi Jiang Yue-Wei Guo

In the last decades, marine natural products (MNPs), have attracted extensive interest from both chemists and pharmacologists due to their chemical and bioactive diversities. This special issue, collecting total synthesis and structural modification of six different type of bioactive MNPs, is expected to inspire and attract more research effects invested into MNP research.

Journal: :Organic letters 2013
Wenbo Xu Shuming Wu Lili Zhou Guangxin Liang

A concise and scalable synthesis of a cis-fused bicyclo[5.3.0]decane ring system has been developed for the total synthesis of echinopines. The core of the natural products was constructed efficiently through an intramolecular 1,3-dipolar cycloaddition and ring contraction strategy.

2012
Mostofa Jaman

This is a segment of the Literature Review chapter of a working paper titled, “Introducing Sugar Cane Juice in the Foreign MarketA Thorough Market Potential”. The paper entails a detailed analysis of the market segment strategy for the betterment of unders tanding and ensuring essentials in considering the right customer class to push the natural product to. The report is still in field level a...

Journal: :Progress in the chemistry of organic natural products 2012
Mario Waser

Now welcome, the most inspiring book today from a very professional writer in the world, asymmetric organocatalysis in natural product syntheses. This is the book that many people in the world waiting for to publish. After the announced of this book, the book lovers are really curious to see how this book is actually. Are you one of them? That's very proper. You may not be regret now to seek fo...

2015
Sambasivarao Kotha Mukesh Eknath Shirbhate Gopalkrushna T Waghule

In this review we cover various approaches to meta- and paracyclophanes involving popular reactions. Generally, we have included a strategy where the reaction was used for assembling the cyclophane skeleton for further functionalization. In several instances, after the cyclophane is made several popular reactions are used and these are not covered here. We included various natural products rela...

Journal: :Antimicrobial agents and chemotherapy 2009
David L Jakeman Srinivasulu Bandi Cathy L Graham Taryn R Reid Jason R Wentzell Susan E Douglas

Natural products are leads for new antibiotics as a result of their structural complexity and diversity. We have isolated a series of structurally related polyketide-derived natural products from Streptomyces venezuelae ISP5230. The most active of these jadomycin analogues showed good activity against a variety of staphylococci, including methicillin-resistant Staphylococcus aureus.

2009
Arun K Sinha Naina Sharma Amit Shard Abhishek Sharma Rakesh Kumar Upendra K Sharma

Journal: :Organic & biomolecular chemistry 2016
Tapan Kumar Kuilya Rajib Kumar Goswami

A short, convergent and general strategy for stereoselective total synthesis of biologically active α-substituted γ-hydroxymethyl γ-lactone based natural products cananginone C and debilisone A has been developed. The salient features of this synthesis include Cadiot-Chodkiewicz coupling, Evans allylation, Sharpless asymmetric dihydroxylation and γ-lactonization. The originally proposed structu...

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