Allylic 1,1-dimetallic species 2, prepared in situ from the propargylic ether 1, are multicoupling reagents. They were allowed to react in a one-pot maction, with a large variety of electrophiles E1-carbonyl compounds (acyl chlorides, aldehydes, ketones, phenyl isocyanate, methyl chloroformate), alkyl bromides, and an amino ether-and then E2-acidic water, iodine, aryl or vinyl iodide in the presence of palladium(0). The isolated yields, based on 1 (5 steps), are fair to good in most cases. The first attack (E1) always occurs on the carbon atom alpha to the oxygen; the second attack (E2) is regio- and stereoselective on the carbon atom a to the TMS moiety.
[EN] RET INHIBITORS, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF<br/>[FR] INHIBITEURS DE RET, COMPOSITIONS PHARMACEUTIQUES ET UTILISATIONS ASSOCIÉES
申请人:SUNSHINE LAKE PHARMA CO LTD
公开号:WO2020114494A1
公开(公告)日:2020-06-11
Provided herein are a RET inhibitor, a pharmaceutical composition thereof and uses thereof. In particular, provided is a compound having Formula (I) or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a solvate, a metabolite, a pharmaceutically acceptable salt or a prodrug thereof. Provided is a pharmaceutical composition comprising the compound, and uses of the compound and pharmaceutical composition thereof for the preparation of a medicament, in particular for treatment and prevention of RET-related diseases and conditions, including cancer, irritable bowel syndrome, and/or pain associated with irritable bowel syndrome.
[EN] COMPOUNDS AND COMPOSITIONS FOR INTRACELLULAR DELIVERY OF THERAPEUTIC AGENTS<br/>[FR] COMPOSÉS ET COMPOSITIONS D'ADMINISTRATION INTRACELLULAIRE D'AGENTS THÉRAPEUTIQUES
申请人:MODERNATX INC
公开号:WO2018170306A1
公开(公告)日:2018-09-20
The disclosure features novel lipids and compositions involving the same. Nanoparticle compositions include a novel lipid as well as additional lipids such as phospholipids, structural lipids, and PEG lipids. Nanoparticle compositions further including therapeutic and/or prophylactics such as RNA are useful in the delivery of therapeutic and/or prophylactics to mammalian cells or organs to, for example, regulate polypeptide, protein, or gene expression.
HYBRID BLOCK COPOLYMER MICELLES WITH MIXED STEREOCHEMISTRY FOR ENCAPSULATION OF HYDROPHOBIC AGENTS
申请人:SILL Kevin N.
公开号:US20080274173A1
公开(公告)日:2008-11-06
The present invention relates to the field of polymer chemistry and more particularly to multiblock copolymers and micelles comprising the same.
本发明涉及聚合物化学领域,更具体地说是涉及多嵌段共聚物以及包含该共聚物的胶束。
Copper-Catalyzed Propargylic Substitution of Dichloro Substrates: Enantioselective Synthesis of Trisubstituted Allenes and Formation of Propargylic Quaternary Stereogenic Centers
the desired 1,3‐substitution products. The enantioenriched chloroallenes could be further transformed into the corresponding trisubstituted allenes or terminal alkynes bearing all‐carbon quaternary stereogenic centers, through the copper‐catalyzed enantiospecific 1,1/1,3‐substitutions. The two successive copper‐catalyzed reactions could be eventually combined into a one‐pot procedure and different desired
A copper-catalyzed silylation of propargyldichlorides was developed to access chloro-substituted allenylsilanes under mild reaction conditions. Moreover, enantioenriched chloro-substituted allenylsilanes can be synthesized in moderate to high yields and good enantioselectivities with this protocol.