Method of preparation of N-(1-oxopentyl)-N-[[2'-(1H-tetrazol-5-y1) [1,1'-biphenyl]-4-y1]methyl]-L-valine (valsartan)
申请人:Radl Stanislav
公开号:US20090192318A1
公开(公告)日:2009-07-30
From the starting 4-bromomethyl-2′-(1-triphenylmethyltetrazol-5-yl)biphenyl, N-[(2′(1-triphenylmethyl-tetrazol-5-yl)biphenyl-4-yl)methyl]-(L)-valine benzyl ester of formula 7 is obtained via a reaction with L-valine benzyl ester, and is converted to valsartan of formula I via a reaction with valeryl chloride and removing of protective groups. The method consists in converting, with hydrochloric acid, N-[(2′-(1-triphenylmethyl-tetrazol-5-yl)biphenyl-4-yl)methyl]-(L)-valine benzyl ester of formula 7, obtained in the first stage, to N-[(2′-(1-triphenylmethyl-tetrazol-5-yl)biphenyl-4-yl)methyl]-(L)-valine benzyl ester hydrochloride of formula III, which is optionally re-crystallized.
COMPOUNDS CONTAINING S-N-VALERYL-N--VALINE AND (2R,4S)-5-BIPHENYL-4-YL-4-(3-CARBOXY-PROPIONYLAMINO)-2-METHYL-PENTANOIC ACID ETHYL ESTER MOIETIES AND CATIONS
申请人:Feng Lili
公开号:US20160324821A1
公开(公告)日:2016-11-10
A method for treatment of a cardiovascular or renal condition or disease with a specific combination, linked pro-drug or a compound of an angiotensin receptor antagonist and a NEPi.
一种治疗心血管或肾脏疾病的方法,使用特定组合、联接型前药或血管紧张素受体拮抗剂和NEPi化合物。
ORGANIC COMPOUNDS
申请人:Feng Lili
公开号:US20090156585A1
公开(公告)日:2009-06-18
A specific combination, linked pro-drug or a compound of an angiotensin receptor antagonist and a NEPi are used in the treatment of hypertension.
一种特定组合,联合前药或血管紧张素受体拮抗剂和NEPi化合物用于治疗高血压。
Nucleic Acids Encoding Nitrilases
申请人:DESANTIS Grace
公开号:US20110263839A1
公开(公告)日:2011-10-27
The invention relates to nitrilases and to nucleic acids encoding the nitrilases. In addition methods of designing new nitrilases and method of use thereof are also provided. The nitrilases have increased activity and stability at increased pH and temperature.