Dehydromicrosclerodermin B and Microsclerodermin J: Total Synthesis and Structural Revision
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چکیده
منابع مشابه
Dehydromicrosclerodermin B and Microsclerodermin J: Total Synthesis and Structural Revision
The total synthesis of dehydromicrosclerodermin B and microsclerodermin J is described. Efficient approaches to the unusual amino acids in the target molecules were developed on the basis of a Negishi coupling (for Trp-2-CO2 H) and Blaise reaction (for Pyrr). An incorrect assignment of the pyrrolidinone stereochemistry of both compounds was confirmed by synthesizing epimers of the proposed stru...
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A convergent synthesis of the proposed structure of (+)-pestalazine B has been achieved in 4 steps using the N-alkylation of an unprotected tryptophan diketopiperazine with a 3a-bromopyrrolidinoindoline as the key step. Although its structure was confirmed by X-ray analysis, the spectroscopic data did not match those of the natural product. The versatility of the methodology allowed the prepara...
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ژورنال
عنوان ژورنال: Angewandte Chemie
سال: 2016
ISSN: 0044-8249
DOI: 10.1002/ange.201604764