Structure and synthesis of two new types of oxindole alkaloids found from Uncaria salaccensis.

Dhavadee Ponglux, Sumphan Wongseripipatana, Norio Aimi, Masashi Nishimura, Midori Ishikawa, Hiroyuki Sada, Joju Haginiwa, Shin‐ichiro Sakai

Chemical and Pharmaceutical Bulletin · 1990 · 28 citations · 0 references

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Abstract

Two new types of oxindole alkaloids, salacin and 3-oxo-7-hydroxy-3, 7-secorhyn-chophylline, have been isolated from the Thai medicinal plant Uncaria salaccensis.