Isao Inagaki

The ether-soluble lignans of Trachelospermum asiaticum var. intermedium

Abstract Matairesinol (I), arctigenin (II), trachelogenin (III) and a new lignan, nortrachelogenin (IV), have been isolated from stems of Trachelospermum asiaticum var. intermedium. The structure of IV has been proposed.

Lignan glycosides of trachelospermum asiaticum var. intermedium

Abstract Matairesinol-4′-β- d -glucoside (matairesinoside) and tracheloside have been isolated from the stem of Trachelospermum asiaticum var. intermedium . The structure of tracheloside is discussed.

Isolation of glucosyringic acid from anodendron affine

Abstract Glucosyringic acid (4-β- d -glucopyranosyloxy-3,5-dimethoxybenzoic acid) has been isolated from Anodendron affine Durce. Its structure has been confirmed by synthesis.

The cyclitols of Ochrosia nakaiana, Plumeria acutifolia and Strophanthus gratus

Abstract l -(+)-Bornesitol was isolated from the leaves of Ochrosia nakaiana and Plumeria acutifolia , respectively. Dambonitol was isolated from the leaves of Strophanthus gratus .

The cyclitols of thevetia nerifolia and nerium indicum

Abstract l -(+)-Bornesitol was isolated from the stems and leaves of Thevetia nerifolia Juss. Dambonitol was isolated from the stems and leaves of Nerium indicum Mill.

Comparative examination on constituents of several Trachelospermum species

Abstract The stem constituents of several Trachelospermum species were investigated. All species except T. difforme contain a series of four lignan glucosides. Dambonitol was found in all species investigated.

Arctigenin-4′-β-gentiobioside fromTrachelospermum asiaticum var. intermedium

Eine neue Lignansubstanz, Arctigenin-4′-β-gentiobiosid C33H44O16·H2O wurde als weisses Pulver von Smp. 174–176° aus Stengeln vonTrachelospermum asiaticum Nakai var.intermedium Nakai gewonnen.