[EN] PROCESS FOR THE PREPARATION OF DIOL SULFONES<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE SULFONES DE DIOL
申请人:DSM SINOCHEM PHARM NL BV
公开号:WO2012098048A1
公开(公告)日:2012-07-26
The present invention relates to a process for the preparation of a diol sulfone derivative comprising reaction of a halomethyl substrate with a thio-aryl compound to obtain a thio-ether compound, and oxidizing the thio-ether compound to the corresponding sulfone. In case of a chiral halomethyl substrate, the resulting chiral diol sulfone derivative is suitable as a building block for statin type compounds.
Substituted 3-hydroxy-delta-lactones from epoxides
申请人:Coates Geoffrey W.
公开号:US20100145046A1
公开(公告)日:2010-06-10
Catalysts and methods for the carbonylation of epoxides to substituted 3-hydroxy-δ-lactones and β-lactones are disclosed.
揭示了用于将环氧化合物羰基化为取代的3-羟基-δ-内酯和β-内酯的催化剂和方法。
[EN] ESTERS OF HEXANOIC ACIDS AS INTERMEDIATES FOR THE PREPARATION OF ATORVASTATIN<br/>[FR] ESTERS D'ACIDES HEXANOÏQUES COMME INTERMÉDIAIRES POUR LA PRÉPARATION D'ATORVASTATINE
申请人:DSM SINOCHEM PHARM NL BV
公开号:WO2012034958A1
公开(公告)日:2012-03-22
The invention relates to compounds of general formula (3) wherein R4 is allyl, 2-butyl, cyclohexyl, 3-methyl-2-butyl or 4-methyl-2-pentyl, a method for the preparation of compounds of general formula (3) and their use in the preparation of atorvastatin.