Minor diterpene glycosides from sweet leaves of Rubus suavissimus
1992
Ohtani, K. | Aikawa, Y. | Kasai, R. | Chou, W.H. | Yamasaki, K. | Tanaka, O.
From sweet leaves of Rubus suavissimus, 10 new kaurane-type diterpene glycosides named suaviosides were isolated, in addition to the known major sweet glycoside, rubusoside and several known minor glycosides. Of these minor glycosides, suaviosides B, G, H, I and J taste sweet, and suaviosides C1, D2 and F taste bitter, while suaviosides D1 and E are tasteless. Their structures were determined mainly on the basis of NMR spectral evidence.
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