Total Synthesis and Proof of Structure of a Human Breast Tumor (Globo-H) Antigen
Autor: | Shuanghua Hu, Samuel J. Danishefsky, In Jong Kim, Ohyun Kwon,†,‡ and, John T. Randolph, Tae Kyo Park, Mark T. Bilodeau |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Journal of the American Chemical Society. 118:11488-11500 |
ISSN: | 1520-5126 0002-7863 |
Popis: | The total synthesis of the Hakomori MBr1 antigen, heavily expressed on human breast tumors, is related. The construction involved the assembly of four glycals: (17 (twice), 18, 20, and 26) and an l-fucose derivative, 34. The sensitivity of the stereochemistry of sulfonamido galactosylation by a terminal galactose ring as a function of the state of protection status of its C4 alcohol was exploited in a key step. (See the formation of compound 51.) The synthesis served to confirm the Hakomori assignment of structure, and paves the way for immunoconjugation. (See compound 64.) |
Databáze: | OpenAIRE |
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