Results 91 to 100 of about 657 (125)

Scholaricine, an alkaloid from alstonia scholaris

Phytochemistry, 1985
Abstract A new alkaloid, scholaricine, has been isolated to which structure 2 (demethylscholarine) has been assigned.
A. Atta-Ur-Rahman, M. Asif, M. Ghazala, J. Fatima, K.A. Alvi   +4 more
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Indole alkaloids from Alstonia scholaris

Phytochemistry, 1987
Abstract A new indole alkaloid, alstonamine and a sitsirikine type indole alkaloid, rhazimanine, have been isolated from the leaves of Alstonia scholaris .
null Atta-Ur-Rahman, K.A. Alvi
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Evaluation of Alstonia scholaris leaves for broncho-vasodilatory activity

Journal of Ethnopharmacology, 2005
The present study demonstrates that the ethanol extract of Alstonia scholaris (Apocynaceae) leaves induced pronounced bronchodilatory activity in anaesthetized rats with the probable involvement of prostaglandins. However, in vitro preparations of guinea-pig trachea did not confirm this property, indicating that bronchodilation is not due to the direct
Shabana, Channa, Ahsana, Dar, Shakeel, Ahmed, , Atta-ur-Rahman   +3 more
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[Flavonoids in leaves of Alstonia scholaris].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2009
To investigate the flavonoids in leaves of Alstonia scholaris, an ethno-remedy of Dai People in Yunnan.The chemical constituents were isolated and purified by column chromatography. Their structures were elucidated on the basis of spectroscopic evidences and physicochemical properties.Eight flavonoids were isolated and identified as kaempferol (1 ...
Tingting, Hui, Yun, Sun, Liping, Zhu, Wen, Guo, Gaoxiong, Rao   +4 more
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Triterpenes ofAlstonia scholaris (dita-bark)

Experientia, 1957
Le triterpene majeur de l'ecorce d'Alstonia scholaris est identifie comme acetate d'α-amyrine et acetate de lupeol.
D, CHAKRAVARTI, R N, CHAKRAVARTI, R, GHOSE   +2 more
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Hypoglycemic Potential of Triterpenes from Alstonia scholaris

Pharmaceutical Chemistry Journal, 2013
A dichloromethane extract of air-dry leaves of Alstonia scholaris (L.) R. Br. contains a mixture of cycloeucalenol (1a), cycloartanol (1b) and lupeol (1c); lupeol acetate (2); and betulin (3). The structures of these triterpenes were elucidated by extensive 1D and 2D NMR spectroscopy and confirmed by comparison of their 13C NMR data to those reported ...
Consolacion Y. Ragasa, Kosta Fremmielle Lim, Chien-Chang Shen, Dennis D. Raga   +3 more
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ChemInform Abstract: Phytochemical Studies on Alstonia scholaris.

ChemInform, 2010
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Nighat Sultana, Muhammad Saleem
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Evaluation of Laxative Activity of Alstonia Scholaris = تقييم نشاط Alstonia Laxative Scholaris

Jordan Journal of Pharmaceutical Sciences, 2014
B. S. Ashok Kumar, G. Saran, K. N. Bharath   +2 more
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FLOWER ALKALOIDS OFALSTONIA SCHOLARIS

Planta Medica, 1976
S C, Dutta, S K, Bhattacharya, A B, Ray
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Phytochemical Investigation on Tinospora cordifolia and Alstonia scholaris

Research Journal of Pharmacy and Technology
Plants are an essential source of many therapeutics and play an important role in human health. Therefore, this study was aimed toward the comparative study of two medicinally important plants, Alstonia scholaris and Tinospora cordifolia. Phytochemical screening was performed on the plants for the detection of saponin, tannin, steroids, flavonoids ...
Jyotishna Singh, Aishwarya Singhal, Abhishek Kumar Pandey, Amit Amit, Sarita Mallik, Manish Kumar Dubey   +5 more
openaire   +1 more source