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Two-step solution-phase synthesis of novel quinoxalinones utilizing a UDC (Ugi/de-Boc/cyclize) strategy

✍ Scribed by Thomas Nixey; Paul Tempest; Christopher Hulme

Book ID
104250527
Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
119 KB
Volume
43
Category
Article
ISSN
0040-4039

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✦ Synopsis

The novel solution-phase synthesis of an array of biologically relevant quinoxalinones in a simple two-step procedure is revealed. Transformations are carried out in excellent yield by condensation of mono-Boc protected ortho-phenylene di-amine, glyoxylic acids and supporting Ugi reagents. Subsequent acid treatment and evaporation affords quinoxalinones in good to excellent yields.

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