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Gallic acid
Anhydrous 3,4,5-trihydroxybenzoic acid, C7H6O5, is essentially planar, with its non-H atoms exhibiting mean and maximum deviations from coplanarity of 0.014 and 0.0377 (5) Å, respectively. TheExpand
Phenylalkanoids and monoterpene analogues from the roots of Rhodiola rosea.
TLDR
Phytochemical investigation of the roots of Rhodiola rosea afforded 17 compounds, belonging to the phenylalkanoids and monoterpene analogues, which were determined by spectroscopic and chemical methods. Expand
Detection of homocysteine and cysteine.
TLDR
Simple methods for detecting either Hcy or Cys in the visible spectral region with the highest selectivity reported to date without using biochemical techniques or preparative separations are described. Expand
Structure–Activity Relationship Studies on Derivatives of Eudesmanolides from Inula helenium as Toxicants against Aedes aegypti Larvae and Adults
TLDR
An Aedes aegypti larval toxicity bioassay was performed on compounds representing many classes of natural compounds including polyacetylenes, phytosterols, flavonoids, sesquiterpenoid, and triterpenoids to understand the functional groups necessary for maintaining and/or increasing its activity, and to possibly lead to more effective insect‐control agents. Expand
Labdane diterpenoids from Leonurus sibiricus.
TLDR
Six new labdane diterpenoids were isolated from the leaves of Leonurus sibiricus and the absolute configurations of 1, 2, 5, and 6 were established by X-ray crystallographic analyses, and leosibirone A was shown to be an artifact of the isolation process. Expand
Isolation and structure determination of a sesquiterpene lactone (vernodalinol) from Vernonia amygdalina extracts
Context: Vernonia amygdalina Del. (VA; Asteraceae or Compositae) is a small tree growing throughout tropical Africa. It is widely used for food and medicinal purposes by local people. It was reportedExpand
LEUCINE-DERIVED NITRILE GLUCOSIDES IN THE ROSACEAE AND THEIR SYSTEMATIC SIGNIFICANCE*
Abstract Six nitrile glucosides and one cyanogenic glucoside (epiheterodendrin) have been isolated from the leaves of members of the Rosaceae-Prunoideae and Rosaceae-Kerrieae. Two of these, 4-β- dExpand
A double concave hydrocarbon buckycatcher.
TLDR
X-ray crystal structure determination of the inclusion complex with buckminsterfullerene C60 provides experimental evidence for the importance of attractive concave−convex π−π interactions in the supramolecular chemistry of fullerenes with buckybowls. Expand
Synthesis and reactions of meso-(p-nitrophenyl)porphyrins
Abstract An improved methodology is reported for the regioselective nitration of the phenyl groups of meso-tetraphenylporphyrin 1 , using NaNO2 and TFA. The degree of nitration is easily controlledExpand
Seminaphthofluorones are a family of water-soluble, low molecular weight, NIR-emitting fluorophores
TLDR
Each of the new fluorophores described is a minimal template structure for evaluation of their basic spectral properties, which may be further functionalized and optimized yielding concomitant improvements in their photophysical properties. Expand
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