Title of article
Preparation of cruciferous phytoalexin related metabolites, (−)-dioxibrassinin and (−)-3-cyanomethyl-3-hydroxyoxindole, and determination of their absolute configurations by vibrational circular dichroism (VCD)
Author/Authors
Monde، نويسنده , , Kenji and Taniguchi، نويسنده , , Tohru and Miura، نويسنده , , Nobuaki and Nishimura، نويسنده , , Shin-Ichiro and Harada، نويسنده , , Nobuyuki and Dukor، نويسنده , , Rina K and Nafie، نويسنده , , Laurence A، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2003
Pages
4
From page
6017
To page
6020
Abstract
Cruciferous phytoalexin related metabolites, (−)-dioxibrassinin (1) and (−)-3-cyanomethyl-3-hydroxyoxindole (2) were prepared from isatin as racemates and were resolved by chiral HPLC. Their absolute configurations were determined by the new chiroptical technique, vibrational circular dichroism (VCD), as well as by the conventional electronic circular dichroism (ECD). It is concluded that the absolute configurations of the naturally occurring (−)-1 and (−)-2 are both S.
Keywords
VCD , dioxindole , dioxibrassinin , phytoalexin , tertiary alcohol
Journal title
Tetrahedron Letters
Serial Year
2003
Journal title
Tetrahedron Letters
Record number
1653799
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