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Synthesis of Antirrhinolide, a New Lactone from Antirrhinum Majus

✍ Scribed by Henrik Franzyk; Signe M. Frederiksen; Søren Rosendal Jensen

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
207 KB
Volume
1998
Category
Article
ISSN
1434-193X

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✦ Synopsis

In addition to the known iridoid glucosides antirrhinoside (1), lactone, named antirrhinolide (4a) was synthesised from 5,6-O-isopropylidene-dihydroantirrhinoside aglucone (7) in two antirrhide (3), linarioside (5) and chaenorrhinoside (6), a novel nonglucosidic iridoid lactone was isolated in trace steps. Thus, its absolute stereochemistry was proven unequivocally. amount from Antirrhinum majus (Scrophulariaceae). This

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