Dušan Uhrín

Homoisoflavanones and other constituents from Muscari racemosum

Abstract From the bulbs of Muscari racemosum two novel 3-benzylidene-4-chromanones were isolated, together with known homoisoflavanone. Uracil and succinic acid were isolated from the aerial parts.

LILALINE -A FLAVONOID ALKALOID FROM LILIUM CANDIDUM

Abstract A new flavonoid alkaloid, lilaline, was isolated from the aerial part of Lilium candidum. Its structure has been elucidated as 3,5,7,4′-tetrahydroxy-8-(3-methyl-2-oxo-pyrrolidmyl)flavone.

Vincarubime, a novel bisindole alkaioid from vinca minor L

Abstract The structure of a novel bisindole alkaloid vincarubine ( 1 was adduced from the spectral data. Vincarubine is the first dimeric alkaloid isolated from the leaves of lesser periwinkle.

A pyrroline-pyrrolidine alkaloid from lilium candidum bulbs

Abstract A new alkaloid, 1-(2′-oxo-5′-pyrrolidinyl)-5-hydroxy-3-methyl-3-pyrrolin-2-one was isolated from the bulbs of Lilium candidum.

A new acylated kaempferol derivative from Lilium candidum L.

Abstract 3,5,7,4′-Tetrahydroxy-8-(3″-methylsuccinoyl)-flavone, a likely precursor of the alkaloid lilaline has been isolated from the aerial part of Liliuin (candidum .