Selective Wittig Reactions for the Synthesis of Variously Substituted 2-Vinylindoles
作者:Manfred Eitel、Ulf Pindur
DOI:10.1055/s-1989-27253
日期:——
Three selective variants of the Wittig reaction for the syntheses of 2-vinylindoles are described. The reactions are relatively easy to perform, exhibit E-selectivity, and are characterized by a good flexibility with regard to the functional groups present in the vinyl moiety.
Process for the preparation of key intermediates for the synthesis of statins or pharmaceutically acceptable salts thereof
申请人:LEK Pharmaceuticals d.d.
公开号:EP2423195A1
公开(公告)日:2012-02-29
The invention relates to commercially viable process for the synthesis of key intermediates for the preparation of statins, in particular Rosuvastatin and Pitavastatin or respective pharmaceutically acceptable salts thereof. A new simple and short synthetic route for key intermediates is presented which benefits from the use of cheap and readily available starting materials, by which the conventionally most frequently used DIBAL-H as reducing agent can be avoided.
Stereocontrolled access to polyenol ethers by conjugate elimination/ring fission reactions
作者:David Lançois、Jacques Maddaluno
DOI:10.1016/s0040-4039(98)00195-6
日期:1998.4
Conjugate elimination reactions are able to transform dienic acetals into the corresponding trienol diethers and efficiently convert γ-alkoxy α,β-unsaturated epoxides into hydroxy dienol ethers.
[EN] PROCESS FOR THE PREPARATION OF KEY INTERMEDIATES FOR THE SYNTHESIS OF STATINS OR PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION D'INTERMÉDIAIRES CLÉS POUR LA SYNTHÈSE DE STATINES OU SELS PHARMACEUTIQUEMENT ACCEPTABLES DE CEUX-CI
申请人:LEK PHARMACEUTICALS
公开号:WO2012013325A1
公开(公告)日:2012-02-02
The invention relates to commercially viable process for the synthesis of key intermediates for the preparation of statins, in particular Rosuvastatin and Pitavastatin or respective pharmaceutically acceptable salts thereof. A new simple and short synthetic route for key intermediates is presented which benefits from the use of cheap and readily available starting materials, by which the conventionally most frequently used DIBAL-H as reducing agent can be avoided.
PROCESS FOR THE PREPARATION OF KEY INTERMEDIATES FOR THE SYNTHESIS OF STATINS OR PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
申请人:Casar Zdenko
公开号:US20140051854A1
公开(公告)日:2014-02-20
The invention relates to commercially viable process for the synthesis of key intermediates for the preparation of statins, in particular Rosuvastatin and Pitavastatin or respective pharmaceutically acceptable salts thereof. A new simple and short synthetic route for key intermediates is presented which benefits from the use of cheap and readily available starting materials, by which the conventionally most frequently used DIBAL-H as reducing agent can be avoided.