Brønsted Acid Catalyzed Dearomatization by Intramolecular Hydroalkoxylation/Claisen Rearrangement: Diastereo‐ and Enantioselective Synthesis of Spirolactams
作者:Peng‐Fei Chen、Bo Zhou、Peng Wu、Binju Wang、Long‐Wu Ye
DOI:10.1002/anie.202113464
日期:2021.12.20
A Brønstedacidcatalyzedintramolecular hydroalkoxylation/Claisen rearrangement is disclosed that involves an unexpected dearomatization of nonactivated arenes and heteroaromatic compounds and allows the practical and atom-economic synthesis of various valuable spirolactams. Moreover, the asymmetric version of this tandem cyclization is also achieved via kinetic resolution by chiral phosphoric acid
SMALL MOLECULE INHIBITORS OF MCL-1 AND THE USES OF THEREOF
申请人:WAYNE STATE UNIVERSITY
公开号:US20140235702A1
公开(公告)日:2014-08-21
This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having sulfonamido-1-hydroxynaphthalene structure which function as inhibitors of Mcl-1 protein, and their use as therapeutics for the treatment of cancer and other diseases.
Phosphate based linkers for intracellular delivery of drug conjugates
申请人:Merck Sharp & Dohme Corp.
公开号:US10550190B2
公开(公告)日:2020-02-04
Phosphate-based linkers with tunable stability for intracellular delivery of drug conjugates are described. The phosphate-based linkers comprise a monophosphate, diphosphate, triphosphate, or tetraphosphate group (phosphate group) and a linker arm comprising a tuning element and optionally a spacer. A payload is covalently linked to the phosphate group at the distal end of the linker arm and the functional group at the proximal end of the linker arm is covalently linked to a cell-specific targeting ligand such as an antibody. These phosphate-based linkers have a differentiated and tunable stability in blood vs. an intracellular environment (e.g. lysosomal compartment).
1H and13C NMR Spectra of (Z)-C-arylN-tert-butyl nitrones
作者:Robert W. Murray、Megh Singh
DOI:10.1002/mrc.1260290917
日期:1991.9
The 1H and 13C NMR spectra of 12 (Z)‐C‐aryl N‐tert‐butyl nitrones were measured and proton and carbon assignments made. The nitrones were synthesized by the dimethyldioxirane method.