82264-32-2Relevant articles and documents
BORON CLUSTER-COUPLED COMPOUND
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Paragraph 0431; 0433-0435, (2021/03/05)
To provide a novel boron-containing compound which increases intratumorous accumulation and tumor retention, and is efficiently taken into a tumor cell.SOLUTION: The present invention relates to a compound represented by formula (I) in the figure or a salt thereof. [In the formula, X represents a divalent to pentavalent organic group; Y represents a linker structure; R represents a monovalent group comprising boron clusters; and n represents 2, 3, 4 or 5.SELECTED DRAWING: None
Dual-participation protecting group solves the anomeric stereocontrol problems in glycosylation reactions
Liu, Hui,Hansen, Thomas,Zhou, Si-Yu,Wen, Guo-En,Liu, Xu-Xue,Zhang, Qing-Ju,Codeé, Jeroen D. C.,Schmidt, Richard R.,Sun, Jian-Song
supporting information, p. 8713 - 8717 (2019/10/28)
The 2,2-dimethyl-2-(ortho-nitrophenyl)acetyl (DMNPA) group permits, via robust neighboring group participation (NGP) or long distance participation (LDP) effects, the stereocontrolled 1,2-trans, 1,2-cis, as well as β-2,6-dideoxy glycosidic bond generation, while suppressing the undesired orthoester byproduct formation. The robust stereocontrol capability of the DMNPA is due to the dual-participation effect from both the ester functionality and the nitro group, verified by control reactions and DFT calculations and further corroborated by X-ray spectroscopy.
Tin-mediated regioselective benzylation and allylation of polyols: Applicability of a catalytic approach under solvent-free conditions
Giordano, Maddalena,Iadonisi, Alfonso
, p. 213 - 222 (2014/01/17)
The first catalytic version of the stannylene-mediated benzylation and allylation of polyols is reported. The methodology is based on a simple solvent-free protocol that significantly advances, in terms of both experimental ease and synthetic scope, the a