Tetrahedron

New acorane-and cuparane-type sesqui-and new labdane-and seco-labdanne-type diterpenoids from the Japanese liverwort Jungermannia infusca (Mitt.) Steph.

F Nagashima, M Suzuki, S Takaoka, Y Asakawa

Index: Nagashima, Fumihiro; Suzuki, Makoto; Takaoka, Shigeru; Asakawa, Yoshinori Tetrahedron, 1999 , vol. 55, # 30 p. 9117 - 9132

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Citation Number: 16

Abstract

A new acorane-and five new cuparane-type sesqui-and two new labdane-and two new seco- labdane-type diterpenoids have been isolated from the Japanese liverwort Jungermannia infusca (Mitt.) Steph., together with previously known sesqui-and diterpenoids. Their structures were determined by extensive NMR techniques, chemical degradation and X-ray crystallographic analysis.