tetrahydroalstonine

Five previously undescribed monoterpenoid indole alkaloids, mappianines A-E, along with twelve known analogues, were isolated… Expand

Summary The extraordinary chemical diversity of the plant-derived monoterpene indole alkaloids, which include vinblastine… Expand

Chemical studies on Hamelia patens (Rubiaceae) micropropagated plantlets allowed production of a new monoterpenoid oxindole… Expand

The biosynthetic pathway of monoterpenoid indole alkaloids in Catharanthus roseus is located throughout various membranes at both… Expand

A new enzyme was discovered which specifically hydrogenates the iminium form of cathenamine at position 21 to yield the… Expand

An indole alkaloid isolated from the fruits of RHAZYA STRICTA Dec., has been identified as tetrahydroalstonine on the basis of… Expand

The relative potencies of raubasine, tetrahydroalstonine (THA) and akuammigine on alpha 1- and alpha 2-adrenoceptors were… Expand

Certain active cytotoxic alkaloid fractions prepared from Catharanthus trichophyllus roots were investigated. This work resulted… Expand

Relative oral potencies for preventing carrageenin-induced pedal edema in rats were, in the order of increasing effectiveness… Expand

A continuing study of Catharanthus Lanceus leaf alkaloids for antineoplastic compounds has led to the isolation of… Expand