Fluorination-Free Synthesis of a 4,4-Difluoro-3,3-Dimethylproline Derivative
摘要:
A Claisen rearrangement/ iodolactamization sequence starting from commercially available trifluoroacetaldehyde methyl hemiacetal, followed by a classical chemical resolution, provided enantiomerically pure 4,4-difluoro-3,3-dimethylproline (S)-1. No hazardous fluorination reagents were used, and the overall yield over 12 steps was greater than 28%.
[EN] HIV PROTEASE INHIBITORS, COMPOSITIONS CONTAINING THE SAME AND THEIR PHARMACEUTICAL USES<br/>[FR] INHIBITEURS DE LA PROTEASE DU VIH, COMPOSITIONS LES CONTENANT ET LEURS UTILISATIONS PHARMACEUTIQUES
申请人:PFIZER
公开号:WO2005026114A1
公开(公告)日:2005-03-24
This invention relates to a novel series of chemical compounds useful as Human immunodeficiency Virus (HIV) protease inhibitors and to the use of such compounds as antiviral agents. The invention further relates to pharmaceutical compositions containing such antiviral agents, and their uses and materials for their synthesis
[EN] METHODS OF PREPARING COMPOUNDS USEFUL AS PROTEASE INHIBITORS<br/>[FR] PROCEDES POUR PREPARER DES COMPOSES UTILES EN TANT QU'INHIBITEURS DE LA PROTEASE
申请人:PFIZER
公开号:WO2005054187A1
公开(公告)日:2005-06-16
The invention relates to methods of preparing compounds of formula (I) that are useful as inhibitors of the HIV protease enzyme. The present invention also relates to intermediate compounds useful in the preparation of compounds of formula (I).
[EN] COMPOSITIONS COMPRISING HIV PROTEASE INHIBITOR AND CYTOCHROME P450 ENZYME ACTIVITY INHIBITOR<br/>[FR] COMPOSITIONS CONTENANT UN INHIBITEUR DE LA PROTEASE DE VIH ET UN INHIBITEUR DE L'ACTIVITE DE L'ENZYME DU CYTOCHROME P450
申请人:PFIZER
公开号:WO2005082364A1
公开(公告)日:2005-09-09
The present invention relates to methods for improving the pharmacokinetics of certain compounds useful as inhibitors of the HIV protease enzyme by inhibiting the enzyme activity of cytochrome P450. The present invention also relates to compositions comprising certain compounds useful as inhibitors of the HIV protease enzyme and at least one agent that inhibits the enzyme activity of cytochrome P450.
Fluorination-Free Synthesis of a 4,4-Difluoro-3,3-Dimethylproline Derivative
作者:Lijian Chen、Young Mi Kim、David J. Kucera、Katheryn E. Harrison、Sogole Bahmanyar、Jill M. Scott、Daniel Yazbeck
DOI:10.1021/jo060057p
日期:2006.7.1
A Claisen rearrangement/ iodolactamization sequence starting from commercially available trifluoroacetaldehyde methyl hemiacetal, followed by a classical chemical resolution, provided enantiomerically pure 4,4-difluoro-3,3-dimethylproline (S)-1. No hazardous fluorination reagents were used, and the overall yield over 12 steps was greater than 28%.