Synthesis of α,α-disubstituted α-amino acid amides by phase-transfer catalyzed alkylation
作者:Bernard Kaptein、Wilhelmus H.J. Boesten、Quirinus B. Broxterman、Hans E. Schoemaker、Johan Kamphuis
DOI:10.1016/s0040-4039(00)61112-7
日期:1992.9
α,α-Disubstituted α-amino acid amides were prepared in 17–86% chemical yield by the phase-transfer catalyzed alkylation of N-benzylidene α-H aminoacid amides, followed by weak acidic hydrolysis of the Schiffbases.
[EN] MACROLIDE ANTIBIOTICS<br/>[FR] ANTIBIOTIQUES A BASE DE MACROLIDES
申请人:GLAXO GROUP LTD
公开号:WO2002050091A1
公开(公告)日:2002-06-27
The present invention relates to 11,12 η lactone ketolides of formula (I) wherein R, R?1, R2, R3¿ are as defined herein and pharmaceutically acceptable salts and solvates thereof, to process for their preparation and their use in therapy or prophylaxis of systemic or topical bacterial infections in a human or animal body.
The present invention relates to 11,12 &ggr; lactone ketolides of formula (I) wherein R, R
1
, R
2
, R
3
are as defined herein and pharmaceutically acceptable salts and solvates thereof, to process for their preparation and their use in therapy or prophylaxis of systemic or topical bacterial infections in a human or animal body.
In recognition of the need to develop novel therapeutic agents and efficient methods for the synthesis thereof, the present invention provides novel compounds of general formula (I), and methods for the synthesis thereof.
1
In another aspect, the present invention provides pharmaceutical compositions comprising a compound of formula (I) and a pharmaceutically acceptable carrier. In yet another aspect, the present invention provides methods for treating cancer comprising administering a therapeutically effective amount of a compound of formula (I) to a subject in need thereof.
The present invention relates to 11,12 γ lactone ketolides of formula (I) wherein R, R
1
, R
2
, R
3
are as defined herein and pharmaceutically acceptable salts and solvates thereof, to process for their preparation and their use in therapy or prophylaxis of systemic or topical bacterial infections in a human or animal body.