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Journal ArticleDOI

Lignan and amides from Piper sylvaticum

01 Oct 1974-Phytochemistry-Vol. 13, Iss: 10, pp 2327-2328
About: This article is published in Phytochemistry.The article was published on 1974-10-01. It has received 9 citation(s) till now. The article focuses on the topic(s): Sesamin & Piperlongumine.

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Topics: Sesamin (55%), Piperlongumine (50%)
Citations
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Journal ArticleDOI
01 Oct 1997-Phytochemistry
Abstract: The secondary metabolites isolated from Piper species for the period 1907 to June 1996 have been reviewed. Nearly six hundred chemical constituents belonging to different classes of bioactive compounds are listed together with their source(s) and references. © 1997 Elsevier Science Ltd

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802 citations


Journal ArticleDOI
TL;DR: Phytochemical evidence as well as other data support the suggestion that the progenitor of sesame occurs in India.

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Abstract: Cultivars of sesame were screened to determine how widely lignans occur. All lines tested contained sesamin and sesamolin. Sesamin and sesamolin in other species of Sesamum varied. Some other genera in the Pedaliaceae also possessed lignans. Phytochemical evidence as well as other data support the suggestion that the progenitor of sesame occurs in India.

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137 citations


Journal ArticleDOI
05 Feb 1985-Phytochemistry
Abstract: Two new unsaturated amides, retrofractamides A and C, were isolated from the total above-ground parts of Piper retrofractum . Retrofractamide A was shown to be N -isobutyl-9(3′,4′-methylenedioxyphenyl)2 E ,4 E ,8 E -nonatrienamide from spectroscopic and chemical investigations. The structure 6 for retrofractamide C was suggested from spectroscopic and chemical studies and was confirmed by a total stereoselective synthesis. The presence of sesamin and 3,4,5-trimethoxydihydrocinnamic acid as well as two higher homologues of retrofractamide A, viz. pipericide (retrofractamide B) and retrofractamide D was demonstrated. The synthesis of pipericide was also achieved.

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41 citations


Journal ArticleDOI
18 Jun 1993-Phytochemistry
Abstract: During the past decade many new lignans and neolignans have been isolated from the Piperaceae. Lignans and neolignans are known to possess biological activity. This review summarizes the structures of lignans and neolignans presently known in the Piperaceae.

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36 citations


01 May 2011-
TL;DR: Piper, the pepper plants or pepper vines are an economically and ecologically important genus in the family Piperaceae, which contains about 1,000-2,000 species of shrubs, herbs, and lianas, many of which are keystone species in their native habitat.

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Abstract: Piper, the pepper plants or pepper vines are an economically and ecologically important genus in the family Piperaceae. It contains about 1,000-2,000 species of shrubs, herbs, and lianas, many of which are keystone species in their native habitat. Piper species have a pan tropical distribution, and are most commonly found in the understory of lowland tropical rainforests, but can also occur in clearings and in higher elevation life zones such as cloud forests. Most Piper species are either herbaceous or vines; some grow as shrubs or almost as small trees. Many species of piper have been used for treating different diseases in many traditions. E.g P. cubeba has been used in folk medicine, herbalism as well as in the early 20th century, as a cigarette flavoring. P. darienense is used medically by the Kuna people of the Panama-Colombia border region, and elsewhere it is used to intoxicate fish which then can be easily caught. Black Pepper (P. nigrum) essential oil is sometimes used in herbalism, and Long Pepper (P. longum) is similarly employed in Ayurveda, where it was an ingredient of Triphala Guggulu and (together with Black Pepper) of Trikatu pills, used for rasayana (rejuvenating and detoxifying) purposes.

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24 citations


References
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Journal ArticleDOI
Asima Chatterjee1, C.P. Dutta1Institutions (1)
01 Jan 1967-Tetrahedron
TL;DR: Piperlongumine and piperlonguminine are shown to be N-(3,4,5-trimethoxycinnamoyl)-Δ5-piperidin-2-one and isobutylamide of piperic acid respectively.

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Abstract: From the root of Piper longum L two new alkaloids, piperlongumine and piperlonguminine have been isolated Piperlongumine and piperlonguminine are shown to be N-(3,4,5-trimethoxycinnamoyl)-Δ 5 -piperidin-2-one and isobutylamide of piperic acid respectively

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95 citations


Journal ArticleDOI
01 Jan 1973-Tetrahedron
Abstract: The structure of sylvatine (1), a new alkamide from Piper sylvaticum, has been elucidated from spectroscopic studies, chemical reactions and correlation with compounds of known structures.

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15 citations


Performance
Metrics
No. of citations received by the Paper in previous years
YearCitations
20181
20161
20112
20001
19971
19931