منابع مشابه
Two new isoquinolone Alkaloids from Sauropus hirsutus
Sauropus androgynus (Euphorbiaceae) is a popular vegetable in Thailand. In 1995, the plant was associated with several cases of poisoning when used in a Taiwanese weight control method and the toxicity was attributed to its alkaloid content. We have therefore investigated a closely related Sauropus species, S. hirsutus. Extraction and isolation of chemical constituents from the aerial part of S...
متن کاملTwo new isoquinolone Alkaloids from Sauropus hirsutus
Sauropus androgynus (Euphorbiaceae) is a popular vegetable in Thailand. In 1995, the plant was associated with several cases of poisoning when used in a Taiwanese weight control method and the toxicity was attributed to its alkaloid content. We have therefore investigated a closely related Sauropus species, S. hirsutus. Extraction and isolation of chemical constituents from the aerial part of S...
متن کاملPyralomicins, new antibiotics from Actinomadura spiralis.
Pyralomicin 2a (5) -H -Cl -CH3 -CH3 Pyralomicin 2b (6) -H -CH3 -Cl -CH3 Pyralomicin2c(7) -H -Cl -CH3 -H Chemistry, Tokyo, Japan, produced new antibiotics, pyralomicins (1~7, Fig. 1). In this paper we report the production, isolation, physico-chemical properties and biological properties of 1 ~7. A slant culture of the pyralomicins-producing organism was inoculated into a 500-ml Erlenmyer flask ...
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Background and objectives: The genus Colchicum belongs to the family Colchicaceae, which comprises of 19 genera, and 225 species worldwide. They have been recognized for more than 2000 years for their noticeable biological properties. The Colchicum species are well known for presence of tropolonic alkaloids, mainly colchicine. Colchicine, is still the drug of ...
متن کاملNew steroidal saponins from rhizomes of Costus spiralis.
Two new steroidal saponins were isolated from the rhizomes of Costus spiralis Rosc. Their structures were established as (3beta,25R)-26-(beta-D-glucopyranosyloxy)-22-hydroxyfurost-5-en-3-yl O-D-apio-beta-D-furanosyl-(1-->2)-O-[alpha-L-rhamnopyranosyl-(1-->4)]-beta-D-glucopyranoside (1) and (3beta,25R)-26-(beta-D-glucopyranosyloxy)-22-hydroxyfurost-5-en-3-yl O-D-apio-beta-D-furanosyl-(1-->4)-O-[...
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ژورنال
عنوان ژورنال: Chemistry of Natural Compounds
سال: 1977
ISSN: 0009-3130,1573-8388
DOI: 10.1007/bf00569623