Advanced search
Publication Cover
Natural Product Letters Volume 11, 1998 - Issue 2
Journal homepage
78
Views
16
CrossRef citations to date
0
Altmetric
Original Articles

Oxo-Derivatives of Kopsine- and Rhazinilam-Type Alkaloids from a North Borneo Kopsia

Toh-Seok Kam Department of Chemistry, University of Malaya, 59100, Kuala Lumpur, Malaysia
&
G. Subramaniam Department of Chemistry, University of Malaya, 59100, Kuala Lumpur, Malaysia
Pages 131-136 | Received 24 Jun 1997, Published online: 04 Oct 2006

Citations (16)

Keep up to date with the latest research on this topic with citation updates for this article.

Subscribe to citation updates

Read on this site (3)

Chen Chen, Xiao Ding, Lingling Han, Wentao Zhu, Kepu Huang, Xiaojiang Hao & Yu Zhang. (2023) Two new monoterpenoid indole alkaloids from the kernels of Kopsia arborea. Natural Product Research 37:7, pages 1047-1052.
Read now
Toh-Seok Kam, Yee-Ming Tee & G. Subramaniam. (1998) Rhazinal, a Formylrhazinilam Derivative from a Malayan Kopsia. Natural Product Letters 12:4, pages 307-310.
Read now
Toh-Seok Kam, G. Subramaniam & Chen Wei. (1998) 19(R)-Hydroxyeburnamine and 19(R)-Hydroxy-Isoeburnamine from Kopsia Dasyrachis. Natural Product Letters 12:4, pages 293-298.
Read now

Articles from other publishers (13)

Nguyen Quang Hop & Ninh The Son. (2022) A comprehensive review on phytochemistry and pharmacology of genus Kopsia : monoterpene alkaloids – major secondary metabolites . RSC Advances 12:30, pages 19171-19208.
Crossref
Takanari Kato, Koji Yasui, Minami Odagi & Kazuo Nagasawa. (2017) Guanidinium Hydroiodide/Cumene Hydroperoxide-Mediated Intermolecular Oxidative Coupling Reaction of β-Ketoamides with Oxindoles. Advanced Synthesis & Catalysis 359:16, pages 2881-2889.
Crossref
Magnus Pfaffenbach & Tanja Gaich. 2017. 1 84 .
Chew-Yan Gan, Yun-Yee Low, Noel F. Thomas & Toh-Seok Kam. (2013) Rhazinilam–Leuconolam–Leuconoxine Alkaloids from Leuconotis griffithii . Journal of Natural Products 76:5, pages 957-964.
Crossref
Liyan Song, Kun Liu & Chaozhong Li. (2011) Efficient and Regioselective 9- Endo Cyclization of α-Carbamoyl Radicals . Organic Letters 13:13, pages 3434-3437.
Crossref
Toh-Seok Kam & Kuan-Hon Lim. 2008. 1 111 .
G. Subramaniam, Osamu Hiraku, Masahiko Hayashi, Takashi Koyano, Kanki Komiyama & Toh-Seok Kam. (2007) Biologically Active Aspidofractinine, Rhazinilam, Akuammiline, and Vincorine Alkaloids from Kopsia . Journal of Natural Products 70:11, pages 1783-1789.
Crossref
Toh-Seok Kam, Yeun-Mun Choo, Wei Chen & Jia-Xing Yao. (1999) Indole and monoterpene alkaloids from the leaves of Kopsia dasyrachis. Phytochemistry 52:5, pages 959-963.
Crossref
Toh-Seok Kam, G Subramaniam & Wei Chen. (1999) Alkaloids from Kopsia dasyrachis. Phytochemistry 51:1, pages 159-169.
Crossref
Toh-Seok Kam. 1999. 285 435 .
Toh-Seok Kam, G. Subramaniam, Kooi-Mow Sim, K. Yoganathan, Takashi Koyano, Mitsuhide Toyoshima, Mun-Chual Rho, Masahiko Hayashi & Kanki Komiyama. (1998) Reversal of multidrug resistance (MDR) by aspidofractinine-type indole alkaloids. Bioorganic & Medicinal Chemistry Letters 8:19, pages 2769-2772.
Crossref
Toh-Seok Kam, Tuck-Meng Lim, Yeun-Mun Choo & G. Subramaniam. (1998) Danuphylline, a novel pentacyclic indole from Kopsia. Tetrahedron Letters 39:32, pages 5823-5826.
Crossref
Toh-Seok Kam, Kooi-Mow Sim, Takashi Koyano, Mitsuhide Toyoshima, Masahiko Hayashi & Kanki Komiyama. (1998) Conodiparines A-D, new bisindoles from Tabernaemontana. Reversal of vincristine-resistance with cultured cells. Bioorganic & Medicinal Chemistry Letters 8:13, pages 1693-1696.
Crossref

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Related research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.