A variety of racemic flavanoids with anti-rhinovirus activity have been resolved for the first time by HPLC, using a chiral stationary phase. Baseline separation was easily obtained for racemic 4',6-dichloroisoflavan (V). The absolute configurations of two enantiomers (Va and Vb) were established by comparing their circular dichroism curves with those of other known isoflavans. Both the isomers were tested against human rhinovirus serotype 1B infection in vitro; the S form was approximately four times more effective than the R form.
Enantiomeric separation of substituted flavanoids by LC-DAD / Quaglia, Maria Giovanna; Desideri, Nicoletta; E., Bossù; P., Melchiorre; Conti, Cinzia. - In: JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS. - ISSN 0731-7085. - STAMPA. - 9:(1991), pp. 811-815. [10.1016/0731-7085(91)80006-U]
Enantiomeric separation of substituted flavanoids by LC-DAD.
QUAGLIA, Maria Giovanna;DESIDERI, Nicoletta;CONTI, Cinzia
1991
Abstract
A variety of racemic flavanoids with anti-rhinovirus activity have been resolved for the first time by HPLC, using a chiral stationary phase. Baseline separation was easily obtained for racemic 4',6-dichloroisoflavan (V). The absolute configurations of two enantiomers (Va and Vb) were established by comparing their circular dichroism curves with those of other known isoflavans. Both the isomers were tested against human rhinovirus serotype 1B infection in vitro; the S form was approximately four times more effective than the R form.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
