| Literature DB >> 21423783 |
Jianglong Zhu1, Qian Wan, Guangbin Yang, Ouathek Ouerfelli, Samuel J Danishefsky.
Abstract
The synthesis of an extended globo-H (MBr1 antigen) in the form of a glycosylamino acid is reported. By careful NMR analysis, we found an interesting conformational "flip" on the E ring of some synthetic intermediates. An explanation offered for the successful [3+3] coupling of ABC acceptor 11 and DEF donor 10 possessing a C4 free hydroxyl to produce β-galactoside in azaglycosidations is reinforced.Entities:
Year: 2009 PMID: 21423783 PMCID: PMC3059307 DOI: 10.3987/COM-08-S(D)82
Source DB: PubMed Journal: Heterocycles ISSN: 0385-5414 Impact factor: 0.831