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Preparation of 17-amino-22-(4′-azido-3′-125iodophenacyl)-17-demethoxygeldanamycin (1): An ansamycin for photoaffinity labeling

✍ Scribed by Rodney C. Schnur; Michael L. Corman


Publisher
John Wiley and Sons
Year
1994
Tongue
French
Weight
328 KB
Volume
34
Category
Article
ISSN
0022-2135

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✦ Synopsis


Abstract

An azido‐^125^iodo‐ansamycin (1) in the geldanamycin family was prepared in two steps in one reacton vessel from 17‐amino‐22‐(4′‐aminophenacyl)‐17‐demethoxygeldanamycin (3). The title compound was suitable for photoaffinity labeling proteins that interacted with ansamycins. A alternative synthesis is reported for preparation of unlabeled title compound in order to afford practical amounts of (1) for conventional biochemical studies.