The Principles of Tetragonia tetragonoides Having an Antiulcerogenic Activity. I. Isolation and Identification of Sterylglucoside Mixture (Compound A)

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Abstract
From the aerial parts of T. tetragonoides, compound A and B1 (tentative names) were isolated as principles which prevented ulcer formation in mice under restrained and water immersion conditions. Compound A was confirmed to be a mixture of steryl-.beta.-glucosides. The sterol moiety of compound A consisted of .beta.-sitosterol, .alpha.-spinasterol, schottenol, .DELTA.22-stigmastenol, stigmsterol, stigmasterol and campesterol.