scholarly journals THE STUDY ON CHEMICAL CONSTITUENTS FROM THE NEEDLES OF TAXUS WALLICHIANA ZUCC. (TAXACEAE)

2009 ◽  
Vol 12 (10) ◽  
pp. 57-63
Author(s):  
Tam Thi Thanh Nguyen ◽  
Nhan Trung Nguyen
Keyword(s):  
Chemical Constituents ◽  
Published Data ◽  
Spectroscopic Methods ◽  
Chemical Structures ◽  
Taxus Wallichiana

A new taxane-type diterpene named 10-deacetyltaxuspine F (2) together with a known compound, taxuspine F (1), were isolated from the needles of Taxus wallichiana Zucc. (Taxaceae). Their chemical structures were elucidated by using spectroscopic methods and comparision with published data.

scholarly journals CHEMICAL CONSTITUENTS OF THE SEED OF CASSIA OCCIDENTALIS L. (CAESALPINIACEAE).

2011 ◽  
Vol 14 (2) ◽  
pp. 89-95
Author(s):  
Nhan Trung Nguyen ◽  
Mai Thi Phuong Pham ◽  
Mai Thi Thanh Nguyen
Keyword(s):  
Ferulic Acid ◽  
Chemical Constituents ◽  
Chloroform Extract ◽  
Published Data ◽  
Spectroscopic Methods ◽  
Cassia Occidentalis ◽  
Chemical Structures

From the chloroform extract of the seed of Cassia occidentalis L., which was collected in Dong Nai province, four compounds were isolated: emodin (1), ferulic acid (2), quercetin (3) and tectochryzin (4). Their chemical structures were elucidated by using spectroscopic methods and comparision with published data.

scholarly journals CONTRIBUTE TO STUDY ON CHEMICAL CONSTITUENTS OF URENA LOBATA (L.) OF VIETNAM

2019 ◽  
Vol 57 (2) ◽  
pp. 162
Author(s):  
Quan Minh Pham ◽  
Hoai Van Thi Tran ◽  
Lam Tien Do ◽  
Phuong Lan Doan ◽  
Inh Thi Cam ◽  
...  
Keyword(s):  
Mental Disorders ◽  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Chemical Constituents ◽  
2D Nmr ◽  
Spectroscopic Methods ◽  
Tree Roots ◽  
Chemical Structures ◽  
Phytochemical Investigation ◽  
First Time

Urena lobata L. is used in Vietnamese traditional medicine for the treatment of several diseases. Tree roots are used to treat rheumatism, dysentery, poor digestion, flu, tonsils, malaria, asthma, goiter. Flowers are used to treat chickenpox, fever, and mental disorders. Branches, leaves or whole trees used to treat injuries bruises, rheumatism, mastitis, bites. Phytochemical investigation of the n-hexan and ethyl acetate extract of Urena lobata L. led to the isolation of β-sitosterol (1), β-sitosterol-3-O-β-D-glucopyranoside (2), a-acetylamino-phenylpropyl a-benzoylamino-phenylpropanoate (3), quercetin (4), and trans-tiliroside (5). Their chemical structures were determined by spectroscopic methods including MS, 1D, 2D NMR and comparing with those reported in previous papers. Two compounds 3, 5 were isolated for the first time from Urena lobata plant.

scholarly journals Chemical constituents isolated from the whole plant of Solanum procumbens

2019 ◽  
Vol 2 (6) ◽  
pp. 134-138
Author(s):  
Nguyen Xuan Hai ◽  
Nguyen Trung Nhan ◽  
Nguyen Thi Thanh Mai
Keyword(s):  
Salicylic Acid ◽  
Medicinal Plant ◽  
Benzoic Acid ◽  
Ethyl Acetate Extract ◽  
Chemical Constituents ◽  
Spectroscopic Methods ◽  
Chemical Structures ◽  
Whole Plant ◽  
Solanaceae Family ◽  
First Time

Solanum procumbens L. is a medicinal plant belonging to the Solanaceae family. In Vietnam, it is known as "Ca gai leo", and it cultivated in some tropical countries in China, Laos, Cambodia, and Vietnam. From the stem of the ethyl acetate extract of Solanum procumbens, we had isolated one anthraquinone (1), four polyphenols (2-5), and one indole (6). By spectroscopic methods as well as comparing with data in the literature, their chemical structures were elucidated as ziganein (1), benzoic acid (2), salicylic acid (3), 4-hydroxybenzaldehyde (4), vanillic acid (5), and indole-3-carbaldehyde (6). These compounds were isolated for the first time from the genus Solanum.

scholarly journals Investigation of bioative compounds from the ethyl acetate extract of Euphorbia hirta Linn

2018 ◽  
Vol 1 (T5) ◽  
pp. 95-101
Author(s):  
Ngan Thi Kim Tran ◽  
Ly Thi Le ◽  
Nhi Thi Y Nguyen ◽  
Minh Thi Tran ◽  
Quan Le Tran
Keyword(s):  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Biological Activities ◽  
Gastrointestinal Disorders ◽  
Published Data ◽  
Spectroscopic Methods ◽  
Asian Countries ◽  
Euphorbia Hirta ◽  
Chemical Structures ◽  
The Past

Euphorbia hirta Linn. (co sua la lon in Vietnamese) belongs to Euphorbiaceae family, is a group of small prostrate herbaceous annual weed in Vietnam. It is abundant in waste places and open grasslands and distributes in most Asian countries. E. hirta is traditionally used in the treatment of gastrointestinal disorders, bronchial and respiratory. The aqueous extract exhibits anxiolytic, analgesic, antipyretic, and anti-inflammatory activities. Strong anti-diabetic activity of Euphorbiaceae family in general and E. hirta in particular was reported in the past investigations. E. hirta has been studied by various investigations and several active constituents have been isolated and identified successfully. Most of those compounds have strong biological activities. At the first step in the processing of the isolation of bioactive compounds from the ethyl acetate extract, we isolated four purified compounds, including methyl gallate (1), quercetin (2), myrecitin (3), and quercitrin (4). The chemical structures of those compounds were elucidated by spectroscopic methods and compared with published data in the literature.

CHEMICAL CONSTITUENTS OF ETHYL ACETATE EXTRACT FROM Taxus wallichiana ZUCC. (TAXACEAE) LEAVES COLLECTED IN HA GIANG PROVINCE

2020 ◽  
Vol 65 (6) ◽  
pp. 110-115
Author(s):  
Dien Pham Huu ◽  
My Pham Thi ◽  
Nam Bui Tuan
Keyword(s):  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Chemical Constituents ◽  
Spectroscopic Methods ◽  
First Time ◽  
Taxus Wallichiana

Investigation on the chemical constituents of ethyl acetate extract from leaves of Taxus wallichiana Zucc. (Taxaceae), collected in Ha Giang province, has resulted in the isolation of three metabolites for the first time: sciadopitysin (1), β-sitosterol (2), and isoquercitrin (3). Their structures were determined by spectroscopic methods.

scholarly journals Investigation of chemical constituents of the leaves from Kalanchoe pinnata L. (Crassulaceae)

2013 ◽  
Vol 16 (2) ◽  
pp. 47-52
Author(s):  
Phu Hoang Dang ◽  
Phuong Thi Yen Duong ◽  
Trong Nguyen Huu Phan ◽  
Thy Anh Nguyen ◽  
Nhan Trung Nguyen
Keyword(s):  
Phenolic Compounds ◽  
Nmr Spectroscopy ◽  
Ferulic Acid ◽  
Ethyl Acetate ◽  
Chemical Constituents ◽  
Published Data ◽  
Chemical Structures ◽  
Kalanchoe Pinnata ◽  
Isoferulic Acid ◽  
Ethyl Acetate Extracts

From the chloroform and ethyl acetate extracts of the leaves of Kalanchoe pinnata L. (Crassulaceae), two flavonoids and three phenolic compounds were isolated; named quercetin (1), 5,7,4’-trihydroxy-8,3’-dimethoxyflavone (2), gallic acid (3), ferulic acid (4) and isoferulic acid (5). Based on the NMR spectroscopy, their chemical structures were elucidated and the result was confirmed by comparison with published data.

scholarly journals THE STUDY ON CHEMICAL CONSTITUENTS FROM THE SEED OF CAESALPINIA BONDUCELLA FLEM. (CAESALPINIACEAE)

2011 ◽  
Vol 14 (2) ◽  
pp. 5-11
Author(s):  
Nhan Trung Nguyen ◽  
Dung Thi Thuy Vu ◽  
Mai Thi Thanh Nguyen
Keyword(s):  
Chemical Constituents ◽  
Published Data ◽  
Spectroscopic Methods ◽  
Caesalpinia Bonducella

From the seed of Caesalpinia bonducella Flem. (Caesalpiniaceae), four compounds were isolated: caesalpinin K (1), caesalpinin E (2), caesalpinin J (3) and caesalpinin MP (4). Their structures were determined by spectroscopic methods and compared with published data.

scholarly journals Chemical constituents of the propolis from the stingless bee Trigona minor

2019 ◽  
Vol 2 (5) ◽  
pp. 59-62
Author(s):  
Hai Xuan Nguyen ◽  
Mai Thi Thanh Nguyen ◽  
Nhan Trung Nguyen
Keyword(s):  
Chemical Composition ◽  
Chemical Constituents ◽  
Ethanolic Extract ◽  
Stingless Bee ◽  
Spectroscopic Methods ◽  
Natural Sources ◽  
Chemical Structures ◽  
Geographical Regions ◽  
First Time ◽  
Improve Health

Propolis is a natural product produced by bees, and it is a mixture of resins and other bee excretions. The chemical composition of each type of propolis and its associated bioactivities also depend on the geographical regions, its food and the bee species. In Vietnam, propolis has been used in traditional medicine as the remedy to improve health and prevent diseases. From the ethanolic extract of the stingless bee propolis Trigona minor (Meliponini, Apidae), four lignan compounds were isolated. Their chemical structures were determined as (+)-isolariciresinol (1), 5-methoxy-(+)- isolariciresinol (2), (+)-lyoniresinol (3), and 6-(4- hydroxy-3-methoxyphenyl)-3,7-dioxabicyclo[3.3.0] octan-2-one (4) by spectroscopic methods as well as comparing with data in the literature. Among them, compound 4 was the first isolated from natural sources, while others were isolated for the first time from this stingless bee propolis.

scholarly journals Chemical constituents of the wood of Mangifera camptosperma

2018 ◽  
Vol 1 (T5) ◽  
pp. 143-148
Author(s):  
Hai Xuan Nguyen ◽  
Trong Le ◽  
Anh Thi Tu Pham ◽  
Truong Van Nhat Do ◽  
Tho Huu Le ◽  
...  
Keyword(s):  
Chemical Constituents ◽  
Hexane Extract ◽  
Spectroscopic Methods ◽  
Chemical Structures ◽  
Ergosterol Peroxide ◽  
Edible Fruit ◽  
The Family ◽  
First Time

Mangifera camptosperma is a perennial tree that belongs to the family Anacardiaceae, which is distributed in Vietnam, Thailand, and Myanmar. In Vietnam, M. camptosperma is called as “Xoai bui”, and this plant is cultivated for its edible fruit. A triterpenoid, 12-ursene- 2α,3β-diol (1), and two steroids, stigmastane-3,6- dione (2) and ergosterol peroxide (3), together with two phenylpropanoids, coniferaldehyde (4) and 4-acetonyl-3,5-dimethoxy-p-quinol (5), were isolated from the wood of n-hexane extract of Mangifera camptosperma. Their chemical structures were ehecidated by spectroscopic methods as well as comparing with data in the literature. These compounds were isolated for the first time from this plant.

Pharmacological Uses of the Plants Belonging to the Genus Commiphora

2020 ◽  
Vol 18 ◽  
Author(s):  
Subbiah Latha ◽  
Palanisamy Selvamani ◽  
Thangavelu Prabha
Keyword(s):  
Secondary Metabolites ◽  
Plant Species ◽  
Dna Cleavage ◽  
Structural Information ◽  
Chemical Constituents ◽  
Future Research ◽  
Pharmacological Properties ◽  
Chemical Structures ◽  
Indigenous Uses ◽  
Available Information

: Natural products have a unique place in the healthcare industry. The genus Commiphora emerged as a potential medicinal with huge benefits as evidenced through its use in various traditional and modern systems of medicine. Therefore, we aimed to prepare a concise review on the pharmacological activities and the indigenous uses of various plant species belonging to the genus Commiphora along with the structural information of various active botanical ingredients present in these plants based on the published literatures and scientific reports. To collect the various published literatures on Commiphora in various journals; to study and classify the available information on the pharmacological uses and chemical constituents; and to present the gathered information as a precise review to serve as a potential reference for future research. Pharmacological and phytochemical data on Commiphora plant species were collected from various journals, books, reference materials, websites including scientific databases, etc for compilation. This review article describes the various pharmacological properties of plants of Commiphora species viz., Anti-arthritic and anti-inflammatory, Anti-atherogenic, Antibacterial, Anti-coagulant, Anti-dicrocoeliasis, Anti-epileptic, Anti-fascioliasis, Anti-fungal, Anti-heterophyidiasis, Anti-hyper cholesterolemic, Anti-hyperlipidemic, Anti-hypothyroidism, Anti-obesity, Anti-osteoarthritic, Anti-osteoclastogenesis, Anti-oxidant, Anti-parasitic, Anti-pyretic, Anti-schistosomiasis, Anti-septic, Anti-thrombotic, Anti-ulcer, Cardioprotective, COX enzyme inhibitory, Cytotoxic /Anti-carcinogenic/Anti-cancer, DNA cleavage, Hypotensive, Inhibits lipid peroxidation, Inhibits NO and NO synthase production, Insecticidal, Local anesthetic, Molluscicidal, Smooth muscle relaxant, Tick repellent activities along with toxicity studies. Furthermore, the review also included various secondary metabolites isolated from various species of Commiphora genus along with their chemical structures serve as a ready resource for researchers. We conclude that the plant species belonging to the genus Commiphora possesses abundant pharmacological properties with a huge treasure of diverse secondary metabolites within themselves. This review indicates the necessity of further in-depth research, pre-clinical and clinical studies with Commiphora genus which may help to detect the unidentified potential of the Commiphora plant species.

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