[EN] METATHESIS CATALYSTS AND METHODS THEREOF<br/>[FR] CATALYSEURS DE MÉTATHÈSE ET PROCÉDÉS ASSOCIÉS
申请人:MASSACHUSETTS INST TECHNOLOGY
公开号:WO2016073750A1
公开(公告)日:2016-05-12
The present application provides, among other things, compounds and methods for metathesis reactions. In some embodiments, the present disclosure provides methods for preparing alkenyl halide with regioselectivity and/or stereoselectivity. In some embodiments, the present disclosure provides methods for preparing alkenyl halide with regioselectivity and Z-selectivity. In some embodiments, the present disclosure provides methods for preparing alkenyl halide with regioselectivity and E-selectivity. In some embodiments, provided technologies are particularly useful for preparing alkenyl fluorides. In some embodiments, a provided compound useful for metathesis reactions has the structure of formula II-a. In some embodiments, a provided compound useful for metathesis reactions has the structure of formula II-b.
THIOPHENE, MANUFACTURING METHOD THEREOF, AND PHARMACEUTICAL APPLICATION OF SAME
申请人:CSTONE PHARMACEUTICALS (SHANGHAI) CO., LTD.
公开号:EP3466946A1
公开(公告)日:2019-04-10
The present invention discloses a thiophene used as a uric acid transporter (URAT1) inhibitor and applicantion of the thiophene in preparing a pharmaceutical product for treating a disease related to abnormal uric acid levels, specifically in preparing a pharmaceutical product for treating hyperuricemia and gouty arthritis. The invention specifically relates to a compound as represented by formula (I) or a pharmaceutically acceptable salt thereof.
Single Bifunctional Ruthenium Catalyst for One-Pot Cyclization and Hydration giving Functionalized Indoles and Benzofurans
作者:Reji N. Nair、Paul J. Lee、Arnold L. Rheingold、Douglas B. Grotjahn
DOI:10.1002/chem.201001075
日期:2010.7.19
Bifunctional is more than twice as fun! At low loading, catalyst 1 (see scheme) can form two important heterocycle classes, apparently by attack of XH on a vinylidene intermediate. Aza‐ and nitroindoles can be formed, and all N‐protecting groups tested (alkyl, allyl, sulfonyl) were tolerated. The newly formed ring can be deuterated in one step, and for substrates with two terminal alkynes, cyclization