Abstract:
:Treatment of 28-hydroxyolean-12-enes with N-bromosuccinimide (NBS) in acetonitrile at room temperature afforded 12 alpha-bromooleanan-13beta, 28-epoxides in high yield. This reaction resulted in the formation of olean-9 (11), 12-diene-18alpha, 29-epoxides from 29-hydroxy isomers but recovered only starting materials from 30-hydroxy isomers. NBS will be used a reagent for diagnostic tool to distinguish between isomers bearing a primary hydroxyl group on D/E rings of olean-12-enes.
journal_name
Planta Medjournal_title
Planta medicaauthors
Woo WS,Kang SS,Jew SSdoi
10.1055/s-2007-969575subject
Has Abstractpub_date
1985-12-01 00:00:00pages
501-4issue
6eissn
0032-0943issn
1439-0221journal_volume
51pub_type
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