Provided herein are compounds of formula (I) which comprise a thiomorpholine 1,1-dioxide or 1-imino-thiomorpholine 1-oxide moiety, or pharmaceutically acceptable salts of any of the foregoing, pharmaceutical compositions that include a compound described herein (including salts of the compound) and methods of synthesizing the same. Also provided are methods of treating Hepatitis B viral (HBV) infections using a compound of formula (I), or pharmaceutically acceptable salts thereof.
Novel methods for making chlorohydrins are provided using a Lewis acid catalyst with an olefin and peroxy compound or where an enantiomer is desired, a Lewis acid catalyst in combination with a chiral alcohol, particularly glycol, and a combination of a peroxy compound and alkenol. In certain situations, an epoxide may be employed.
A general, rapid, and scalable method for the preparation of α-halogenatedketones using N-alkenoxypyridinium salts as substrates and quaternary ammonium salts as halogen sources was developed, featuring mild reaction conditions, excellent functional group tolerance, short reaction times, and a wide substrate scope.
Nouveaux bêta-cétoesters chlorés, leur préparation et leur emploi
申请人:RHONE-POULENC SANTE
公开号:EP0082781A1
公开(公告)日:1983-06-29
Nouveaux β-cétoesters chlorés de formule générale (la) ou (lb) dans laquelle R représente un radical alcoyle contenant 1 à 6 atomes de carbone ou un radical alcényle contenant 2 à 6 atomes de carbone et R1 représente un radical alcoyle contenant 1 à 4 atomes de carbone, leur préparation et leur emploi pour la préparation de cétones éthyléniques de formule générale (II) dans laquelle R est défini comme ci-dessus.
通式(Ia)或(Ib)(其中 R 代表含 1 至 6 个碳原子的烷基或含 2 至 6 个碳原子的烯基,R1 代表含 1 至 4 个碳原子的烷基)的新型氯化 β 酮,其制备及其用于制备通式(II)(其中 R 的定义同上)的乙烯酮。
Novel alpha-chloroketone derivative and process for preparation thereof
申请人:MITSUI PETROCHEMICAL INDUSTRIES, LTD.
公开号:EP0267055A1
公开(公告)日:1988-05-11
Disclosed is a novel alpha-chloroketone derivative as a synthesis intermediate of N-cyano-N'methyl-N"-(2-((5-methyl-1H-imidazol-4-yl)-methylthio)ethyl)guanidine (general name: Cimetidine) which shows an action of controlling the secretion of gastric acid and is valuable as a medicine for remedy of a gastric ulcer. This alpha-chloroketone derivative is prepared by reacting a disulphide derivative with sulphuryl chloride and reacting the reaction product with methylvinyl ketone or by reacting a mercapto derivative with 3-chloro-3-buten-2-one.