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
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