Quaternary Indole Alkaloids ofStrychnos decussata

Abstract
A new muscle-relaxant alkaloid named malindine has been isolated from the stem bark of Strychnos decussata, along with the previously known alkaloids macusine B, O-methylmacusine B and an alkaloid of macusine A or C-type. The structure of malindine is proposed on the basis of spectral data and its pharmacological activity is discussed.