๐”– Bobbio Scriptorium
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A concise total synthesis of the aglycone of the gilvocarcins

โœ Scribed by Prashant P. Deshpande; Olivier R. Martin


Book ID
104228345
Publisher
Elsevier Science
Year
1990
Tongue
French
Weight
283 KB
Volume
31
Category
Article
ISSN
0040-4039

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โœฆ Synopsis


A brief and convergent synthesis of the aglycone of the gilvocarcins M and E (and formally V) involving, in the key step, a Pd-mediated inmmolecular biaryl coupling, is reported.

6H-Benzo[&aphtho[l&b]pyran-(i-ones

hearing oxygenated suhstituents at C-l, 10 and 12, and an alkyl (methyl, ethyl) or vinyl group at C-8 constitute the common aglycone of a number of C-aryl glycoside antibiotics including, in particular, the gilvocarcins (M, la; E. 2a; V, 3a).' ravidomycin,2 and ~thers.~ Several of these antibiotics exhibit significant antitumor activity. *3 for example, gilvocarcin V is a DNA-intercalating agent of unusual potency' whose activity is enhanced by low-energy visible light ir&iatio@*' the therapeutic


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