+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Oxindole alkaloids from Alstonia macrophylla

, : Oxindole alkaloids from Alstonia macrophylla. Phytochemistry (Oxford) 41(1): 313-315

Two new oxindole alkaloids, N-b-demethyialstophyllal oxindole and alstonal, together with three known alkaloids, N-b-demethylalstophylline oxindole, alstonisine and talcarpine, have been isolated from the bark of Alstonia macrophylla. Structures of the alkaloids were assigned by spectral methods.

Accession: 002914166

DOI: 10.1016/0031-9422(96)81092-2

Download PDF Full Text: Oxindole alkaloids from Alstonia macrophylla

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Atta U.R.hman; Silva W.S.J.; Alvi K.A.; D.S.lva K.T.D., 1987: N b demethylalstophylline oxindole an oxindole alkaloid from the leaves of alstonia macrophylla. An oxindole alkaloid, Nb-demethylalstophylline oxindole has been isolated form the leaves of Alstonia macrophylla. Its structure has been elucidated on the basis of spectroscopic studies.

Rahman A U.; Nighat F.; Nelofer A.; Zaman K.; Choudhary M.I.; Desilva K.T.D., 1991: Macroxine a novel oxindole alkaloid from alstonia macrophylla. A novel oxindole alkaloid macroxine (1) has been isolated from the leaves of Alstonia macrophylla and its structure was established on the basis of 1D and 2D NMR experiments including HOHAHA, HMQC and HMBC measurements. It is the first member of a...

Ratnayake C.K.; Arambewela L.S.R.; D.S.lva K.T.D.; Atta U.R.hman; Alvi K.A., 1987: Alkaloids of alstonia macrophylla. A new alkaloid, 19-hydroxyvincamajine, has been isolated from the leaves of Alstonia macrophylla. In addition to this, eight other indole alkaloids, alstonerine, alstophylline, macralstonine, anhydromacralstonine, talcarpine, vincamajine, vincorin...

Rahman A U.; Ahmed G.; Choudhary M.I.; Habib U.R.hman; D.S.lva T.K., 1988: Alkaloids from alstonia macrophylla. The leaves of Alstonia macrophylla have yielded a new alkaloid, (-)-strictaminolamine. In addition to this the known alkaloid, (-)1,2-dihydro-N-methylstrictamine previously found in Catharanthus longifolius, was also obtained.

Kam, T-Seok.; Choo, Y-Mun., 2004: New indole alkaloids from Alstonia macrophylla. Ten new indole alkaloids, alstomaline (1), 10,11-dimethoxynareline (2), alstohentine (3), alstomicine (4), 16-hydroxyalstonisine (5), 16-hydroxyalstonal (6), 16-hydroxy-N(4)-demethylalstophyllal oxindole (7), alstophyllal (8), 6-oxoalstophylline (...

Atta U.R.hman; Nighat F.; Choudhary M.I.; Dayanada D.S.lva K.T., 1988: Alkaloids from the leaves of alstonia macrophylla. Alstonia macrophylla Wall, of Sri Lankan origin has yielded a new picraline alkaloid, "alstopicralamine" (1), the structure of which was established by using modern spectroscopic techniques. A known base vincamajine (2) was also isolated...

Keawpradub, N.; Houghton, P.J., 1997: Indole alkaloids from Alstonia macrophylla. Two new bisindole alkaloids, alstomacrophylline and alstomacroline, have been isolated from the root bark of Alstonia macrophylla, along with six known alkaloids, alstonerine, alstophylline, macrocarpamine, alstoumerine, 20-epi-antirhine and villa...

Arambewela, L.S.R.; Ratnayake, C.K.; Amarasekera, A.S., 1990: The alkaloids of the fruits of Alstonia macrophylla. This species which is used medicinally in the Philippines, is naturalized in Sri Lanka. Four new alkaloids are reported (alstonerine, alstophylline, yohimbine and beta -yohimbine).

Peterson, A.C.; Cook, J.M., 1994: Studies directed towards the diastereoselective synthesis of Alstonia oxindole alkaloids. Abstracts of Papers American Chemical Society 208(1-2): ORGN 271

Phillipson, J.; Hemingway, S., 1973: Oxindole alkaloids from Uncaria macrophylla. Four isomeric oxindole alkaloids, isorhynchophylline, rhynchophylline, corynoxine and corynoxine B, have been isolated from the leaves of Uncaria macrophylla Wall. Corynoxine B has not previously been reported as a natural product.