ChemInform Abstract: Stereochemical Issu
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A. MADRIGAL; M. GRANDE; C. AVENDANO
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Article
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2010
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John Wiley and Sons
⚖ 37 KB
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Stereochemical Issues Related to the Synthesis of 7,10- 10,16,3':3,4]pyrazino[1,2-b]βcarboline-5,8-diones. -The condensation of iminoethers like (III) with anthranilic acid proceeds with inversion of the tryptophan stereocenter C-16a. Epimerization of the tryptophan center also occurs by acylation