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The article focuses on a study related to chemical constituents of the spines of gleditsia sinensis. It discusses origination of the species along with an analysis of its isolation from current state. It further mentions medicinal properties of the species and how it is used as medical treatment in various places. It also presents chemical bonding of the process.

A new arylbenzofuran derivative, menthanolic acid A, was isolated from the aerial parts of Mentha canadensis L. The structure was elucidated on the basis of 1D/2D NMR, and HR-ESI-MS spectroscopic data. [ABSTRACT FROM AUTHOR]

A new compound, quercetin-8-(2″-pyrrolidinone-5″-yl)-3′-O-β-D-glucopyranoside, with 11 known flavonoids, was isolated from the traditional Chinese herb Abelmoschus manihot. The structure was elucidated by spectral analysis. [ABSTRACT FROM AUTHOR]

An abstract of the article "Chemical Constituents of the Flower Buds of Panax ginseng" by Xiao-Ling Pan, Zhen-Lin Li, Shi-Hui Qian, and She-Ban Pu is presented.

Chemical investigation on the aerial parts of Lycopus lucidus var. hirtus has afforded a novel abietane-type diterpenoid glycoside, lucihirtin A ( 1), and seven known compounds, ursolic acid 28-O- β-D-glucopyranoside ( 2), 2 α,3 β,19 α-trihydroxyurs-12-en-28-oic acid 28-O- β-D-glucopyranoside ( 3), 2 α,3 α,19 α-trihydroxyurs-12-en-28-oic acid ( 4), oleanolic acid ( 5), ursolic acid ( 6), palmitic acid ( 7), and 1-glycerin hexadecylate ( 8). Their structures and configurations were elucidated by spectroscopic methods, including 2D NMR techniques. Compounds 2, 3, 4, and 8 were isolated from this plant for the first time. [ABSTRACT FROM AUTHOR]

The article discusses a study which aims to identify the flavonoid compounds found in the aerial parts of Mentha haplocalyx. The study were refluxed with 40% ethanol and diluted with hydrogen oxide. The study uses the mass and nuclear magnetic resonance (NMR) spectroscopy to identify the compounds. Result shows that isoleucanthogenin, apigenin, and tilianin are some of the compounds in the species.