[EN] ANTIOXIDANT, NEUROPROTECTIVE AND ANTINEOPLASTIC NANOPARTICLES COMPRISING A THERAPEUTIC AGENT ON AN AMPHIPHILIC SPACER OR AN AMPHIPHILIC POLYMER [FR] NANOPARTICULES ANTIOXYDANTES, NEUROPROTECTRICES ET ANTINÉOPLASIQUES COMPRENANT UN AGENT THÉRAPEUTIQUE SUR UN ESPACEUR AMPHIPHILE OU UN POLYMÈRE AMPHIPHILE
COMPOUND, AND SEPARATION METHOD, SYNTHESIS METHOD AND USE THEREOF
申请人:BEIJING PEKING UNIVERSITY WBL BIOTECH CO., LTD.
公开号:US20180022688A1
公开(公告)日:2018-01-25
The invention relates to new compounds as well as a separation method, a synthetic method and use thereof. It is demonstrated by an assay on activity that the compound has an activity of inhibiting an HMG-CoA reductase. In addition, the invention also relates to a derivative of the compound.
The present invention relates to a process to prepare semi synthetic statins, to intermediates formed during said process and to highly purified simvastatin produced by the process.
Process for preparing simvastatin and intermediates thereof
申请人:Korodi Ferenc
公开号:US20070129437A1
公开(公告)日:2007-06-07
Novel processes for the preparation of simvastatin and intermediates of such processes. Preferred embodiments include the preparation of lovastatin amides, protected lovastatin amide derivatives, simvastatin dihydroxy acid amide derivatives, alkali salts, simvastatin dihydroxy acids, simvastatin ammonium salts, and simvastatin.
METHODS FOR PREPARING STATIN COMPOUNDS BY LACTONIZATION
申请人:Ma Deyin
公开号:US20120296099A1
公开(公告)日:2012-11-22
A method for preparing a statin compound by lactonization is disclosed, which comprises the following step: lactonizing a compound of formula II into the compound of formula I in the presence of a strong acid catalyst and a dehydrant in a first solvent,
wherein Z represents H, ammonium, or a metal cations;
R
1
is H or C
1
-C
6
alkyl, preferably H or CH
3
,
R
2
is CH
3
, OH, CH
2
OH, CH
2
OC(O)R
3
, CH
2
OR
3
, or COOR
4
, preferably CH
3
or OH,
R
3
and R
4
are independently selected from the group consisting of H and C
1
-C
6
alkyl.
[EN] PROCESS FOR PREPARING SIMVASTATIN.<br/>[FR] PROCEDE DE PREPARATION DE SIMVASTATINE
申请人:UK CHEMIPHARM CO LTD
公开号:WO2005058861A1
公开(公告)日:2005-06-30
The present invention relates to a process for preparing simvastatin, comprising the steps of reacting a diol lactone of formula 4 with a di-substituted silyl dichloride (dichlorosilane) to produce a diol lactone dimer of formula 5, subsequently acylating the diol lactone dimer with 2,2-dimethylbutyryl chloride to produce a simvastatin dimer of formula 6, and deprotecting the simvastatin dimer to produce simvastatin. The process is simple in overall manufacturing steps, uses cheap protecting agent, and has an excellent productivity and economical effect.