Results 1 to 10 of about 14,944,148 (406)

The Total Synthesis of (–)-Scabrolide A [PDF]

open access: yesJournal of the American Chemical Society, 2020
The first total synthesis of the norcembranoid diterpenoid scabrolide A is disclosed. The route begins with the synthesis of two chiral pool-derived fragments, which undergo a convergent coupling to expediently introduce all 19 carbon atoms of the ...
Hafeman, Nicholas J.   +5 more
core   +6 more sources

Total Synthesis and Stereochemical Assignment of Alternapyrone [PDF]

open access: yesMolecules
Alternapyrone, a bioactive polyketide produced by the fungal host Aspergillus oryzae, is biosynthesized by a polyketide synthase encoded by the alt1-5 gene cluster.
Hui Zhang   +5 more
doaj   +2 more sources

Total Synthesis of Cardenolides Acospectoside A and Acovenoside B [PDF]

open access: yesMolecules
Acospectoside A (1) and acovenoside B (2), two cytotoxic cardenolides extracted from the venomous South African bush Acokanthera oppositifolia, are distinguished by their unique structural motifs of the l-acovenose moiety at C-3 and a 1β-O-acetylated ...
Benzhang Liu, Peng Xu, Biao Yu
doaj   +2 more sources

First total synthesis of kipukasin A [PDF]

open access: diamondBeilstein Journal of Organic Chemistry, 2017
In this paper, a practical approach for the total synthesis of kipukasin A is presented with 22% overall yield by using tetra-O-acetyl-β-D-ribose as starting material.
Chuang Li   +4 more
doaj   +2 more sources

Synthetic Study toward Triterpenes from the Schisandraceae Family of Natural Products

open access: yesMolecules, 2023
Triterpenoid natural products from the Schisandraceae family have long presented a significant synthetic challenge. Lancifodilactone I, a member of the family not previously synthesized, was identified as a key natural product target, from which many ...
Pavle Kravljanac, Edward A. Anderson
doaj   +1 more source

Chemoenzymatic Total Synthesis of Natural Products.

open access: yesAccounts of Chemical Research, 2021
ConspectusThe total synthesis of structurally complex natural products has challenged and inspired generations of chemists and remains an exciting area of active research. Despite their history as privileged bioactivity-rich scaffolds, the use of natural
Suman Chakrabarty   +4 more
semanticscholar   +1 more source

Progress in the total synthesis of resin glycosides

open access: yesFrontiers in Chemistry, 2022
Resin glycosides, mainly distributed in plants of the family Convolvulaceae, are a class of novel and complex glycolipids. Their structural complexity and significant biological activities have received much attention from synthetic chemists, and a ...
Wenli Wang   +10 more
doaj   +1 more source

Recent Advances in the Stereoselective Total Synthesis of Natural Pyranones Having Long Side Chains

open access: yesMolecules, 2020
Pyranone natural products have attracted great attention in recent years from chemists and biologists due to their fascinating stereoisomeric structural features and impressive bioactivities.
Satya Kumar Avula   +4 more
doaj   +1 more source

Optimization of Two Steps in Scale-Up Synthesis of Nannocystin A

open access: yesMarine Drugs, 2021
We have accomplished a 10-step (longest linear) total synthesis of nannocystin A on a four hundred milligram scale. The previously reported Kobayashi vinylogous Mukaiyama aldol reaction to connect C4 and C5 was unreproducible during the scaling up ...
Tingrong Zhang   +5 more
doaj   +1 more source

ESTRATÉGIAS PARA A SÍNTESE DO ÁCIDO LISÉRGICO

open access: yesQuímica Nova, 2021
STRATEGIES FOR THE SYNTHESIS OF LYSERGIC ACID. (+)-Lysergic acid [(+)-1] is a precursor of several substances with well-established pharmacological properties, including some drugs approved and commercialized around the world. Thus, the importance of (+)-
Tamiris R. C. Silva, Cristiano Raminelli
doaj   +1 more source

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