Holarrhena febrifuga

Six alkaloids of the conanine group, conessine (main product), conessimine, isoconessimine, conarrhimine, conessidine, and conkurchine, and four alkaloidal derivatives of 3-amino-A -pregnene, holafebrine (main product), holaminol, holarrhimine, and holaphylline, were isolated from the bark of Holarrhena febrifuga Klotzsch. ... 

In 1858 Haines 1 isolated from the bark of Holarrhena (Wrightia) antidysenterica Wall., known in India as kurchi, the alkaloid conessine. It was prepared from the seeds of the same plant by Stenhouse, who named it wrightine, and by Warnecke, in a crystalline condition from the same source. It was also obtained by Polstorlf and Schirmer from the African species H. africana D.C., by Pyman from H. congolensis Stapf., together with a second alkaloid, holarrhenine, by Henry and Brown from H. Wulfsbergii, and by Siddiqui et from H. febrifuga Klotsch. 

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