Oxidative transformations of guaia-1(10)-en-12,8-olides into xanthanolides
J Nat Prod
; 62(6): 920-2, 1999 Jun.
Article
in En
| MEDLINE
| ID: mdl-10395522
ABSTRACT
Dihydropsuedoivalin (1) was isolated from Stevia tomentosa, which, when treated with base, afforded epidihydropseudoivalin (2). The stereochemistry of 1 and 2 was established by crystallographic X-ray studies of the two derivatives of epidihydropseudoivalin. Treatment of 1 and 2 with Jones's reagent afforded the xanthanolides 3 and 4, respectively.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Nat Prod
Year:
1999
Type:
Article