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Synthesis of carbon-14 labelled indolic 5HT1 receptor agonists

✍ Scribed by Ian Waterhouse; Karl M Cable; Ian Fellows; Mark D Wipperman; Derek R Sutherland


Publisher
John Wiley and Sons
Year
1996
Tongue
French
Weight
523 KB
Volume
38
Category
Article
ISSN
0022-2135

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✦ Synopsis


Syntheses of carbon-14 labelled versions of indolic 5HT1 agonists sumatriptan (GR43175) ( 1 ) , GR40370 (2a) and naratriptan (GR85548) (3a) are described.

Introduction of the label via cyanation of ketoforrnanilides, formed by oxidative cleavage of an indole ring, ensured incorporation of carbon-14 at the metabolically stable C-2 position of the indole.


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