Stereoselective Synthesis of a Key Precursor of Halicholactone and Neohalicholactone
摘要:
An efficient synthesis of a known precursor of halicholactone (1a) and neohalicholactone (1b) has been developed using the strategically functionalized key cyclopropane intermediate 2, which in turn has been synthesized via stereoselective cyclopropanation of trans-cinnamyl alcohol in the presence of the chiral dioxaborolane ligand 4. Elaboration of the above bifunctional cyclopropane to the target molecule was achieved in a relatively short reaction sequence and in good overall yield, representing a formal synthesis of the title compounds.
Stereoselective Synthesis of a Key Precursor of Halicholactone and Neohalicholactone
摘要:
An efficient synthesis of a known precursor of halicholactone (1a) and neohalicholactone (1b) has been developed using the strategically functionalized key cyclopropane intermediate 2, which in turn has been synthesized via stereoselective cyclopropanation of trans-cinnamyl alcohol in the presence of the chiral dioxaborolane ligand 4. Elaboration of the above bifunctional cyclopropane to the target molecule was achieved in a relatively short reaction sequence and in good overall yield, representing a formal synthesis of the title compounds.
Naphthyridine compounds and their use as inhibitors of HPK1 are described. The compounds are useful in treating HPK1-dependent disorders and enhancing an immune response. Also described are methods of inhibiting HPK1, methods of treating HPK1-dependent disorders, methods for enhancing an immune response, and methods for preparing the naphthyridine compounds.
Isoquinoline compounds and their use as inhibitors of HPK1 (hematopoietic kinase 1) are described. The compounds are useful in treating HPK1-dependent disorders and enhancing an immune response. Also described are methods of inhibitng HPK1, methods of treating HPK1-dependent disorders, methods for enhancing an immune response, and methods for preparing the isoquinoline compounds.
Kinetic Enzymatic Resolution of Cyclopropane Derivatives
作者:Jörg Pietruszka、Anja C. M. Rieche、Thorsten Wilhelm、Andreas Witt
DOI:10.1002/adsc.200303137
日期:2003.12
enzymatic resolution of various cyclopropane derivatives was systematically investigated. The study focused on synthetically useful cyclopropylmethanols (e.g., 18a/j or 19a/j) as well as some rarely investigated cyclopropanols (e.g., 24/25 or 27). The combination of enantioselective catalytic or diastereoselective synthesis of enantiomericallyenriched compounds with enzymatic approaches ultimately
[EN] ISOQUINOLINES AS INHIBITORS OF HPK1<br/>[FR] ISOQUINOLÉINES UTILISÉES EN TANT QU'INHIBITEURS DE HPK1
申请人:GENENTECH INC
公开号:WO2018183964A1
公开(公告)日:2018-10-04
Isoquinoline compounds and their use as inhibitors of HPK1 (hematopoietic kinase 1) are described. The compounds are useful in treating HPK1 -dependent disorders and enhancing an immune response. Also described are methods of inhibiting HPK1, methods of treating HPK1 -dependent disorders, methods for enhancing an immune response, and methods for preparing the isoquinoline compounds.