Jacqueline Vaquette

Produits neutres et alcaloides de Myrtopsis macrocarpa, M. myrtoidea, M. novae-caledoniae et M. sellingii☆

Abstract Stems and leaves of Myrtopsis macrocarpa, M. myrtoidea, M. novae-caledoniae and M. sellingii yielded terpenes, sterols, coumarins, alkaloids (furoquinolines and quinolones) and amides. A new quinolone (8-methoxy flindersine) occurs in Myrtopsis macrocarpa, a new amide (N-benzoyltryptamine) in M. myrtoidea, two new coumarins (myrsellin and myrsellinol) and a new dihydrofuroquinoline (myrtopsine) in M. sellingii. Structures of the new compounds are proposed from chemical and spectroscopic evidence.

Acetophenones and other constituents from the roots of Melicope erromangensis

Octandrenolone and five novel related dimethylpyran acetophenones have been isolated from the chloroform extract of roots of Melicope erromangensis and identified by spectroscopic studies and chemical correlations as O-methyloctandrenolone, (+)-trans-3‴,4‴-dihydro-3‴,4‴-dihydroxy-O-methyloctandrenolone, (+)-trans- 3″,4″-dihydro-3″,4″-dihydroxy-O-methyloctandrenolone, and trans-3″,4″-dihydro-3″,4″-dihydroxyoctandrenolone. In addition, four known quinolines and three known flavones have been isolated.

Alkaloids from stem bark of dutaillyea baudouinii

Abstract The stem bark of Dutaillyea baudouinii yielded five quinolines. Two were the known furoquinolines, evoxine and haplopine, two were new dihydrofuroqunolines, 7,8-dimethoxyplatydesmine and 7,8-dimethoxymyrtopsine, and one was a new dihydropyranoquinoline, 8,9-dimethoxygeibalansine.

Zanthomamide: An aromatic amide from Zanthoxylum thomense

Abstract From the stem bark of Zanthoxylum thomense a new amide, zanthomamide has been isolated and characterized as N -methyl, N -cinnamyl-(3′,4′-methylenedioxy)-phenylethylamine. Other constituents identified are the known benzophenanthridines, decarine, norchelerythrine and angoline.