Scalable Synthesis of the Potent HIV Inhibitor BMS-986001 by Non-Enzymatic Dynamic Kinetic Asymmetric Transformation (DYKAT)
作者:Adrian Ortiz、Tamas Benkovics、Gregory L. Beutner、Zhongping Shi、Michael Bultman、Jeffrey Nye、Chris Sfouggatakis、David R. Kronenthal
DOI:10.1002/anie.201502290
日期:2015.6.8
Described herein is the synthesis of BMS‐986001 by employing two novel organocatalytic transformations: 1) a highly selective pyranose to furanose ring tautomerization to access an advanced intermediate, and 2) an unprecedented small‐molecule‐mediated dynamickinetic resolution to access a variety of enantiopure pyranones, one of which served as a versatile building block for the multigram, stereoselective
METHOD FOR PRODUCING ACYLOXYPYRANONE COMPOUND, METHOD FOR PRODUCING ALKYNE COMPOUND, AND METHOD FOR PRODUCING DIHYDROFURAN COMPOUND
申请人:Nissan Chemical Industries, Ltd.
公开号:EP2557177A1
公开(公告)日:2013-02-13
An acylating agent and a hydrolase are caused to act on a hydroxypyranone represented by formula (I) in a water-containing organic solvent, to thereby produce an acyloxypyranone compound represented by formula (II) (wherein R1 represents an acyl group). Then, an acetylene organic metal compound represented by formula (III) (wherein R2 represents a hydrogen atom or a tri-substituted silyl group, and M represents an alkali metal atom, aluminum, or a magnesium monohalide) and a coordinating additive are caused to act on the acyloxypyranone compound represented by formula (II), to thereby produce an alkyne compound represented by formula (IV). The alkyne compound represented by formula (IV) is hydrolyzed with acid, to thereby produce a dihydrofuran compound represented by formula (V).
De Novo Asymmetric Bio- and Chemocatalytic Synthesis of Saccharides − Stereoselective Formal <i>O</i>-Glycoside Bond Formation Using Palladium Catalysis
作者:Alex C. Comely、Rienk Eelkema、Adriaan J. Minnaard、Ben L. Feringa
DOI:10.1021/ja0347538
日期:2003.7.1
approach to the de novo catalytic asymmetric synthesis of saccharides has been developed. Acetoxypyranones obtained enantiopure by enzymatic resolution have been shown to undergo highly stereoselective palladium-catalyzed formal O-glycoside bond formation. The combination of these protocols can be applied to the iterative asymmetric catalytic synthesis of saccharides.