Patent application number | Description | Published |
20110082213 | NOVEL SALTS OF O-DESMETHYL-VENLAFAXINE - Novel pharmaceutically acceptable salts of desvenlafaxine with physiologically ubiquitous ions selected from sugar acids and vitamins, processes for their preparation, pharmaceutical compositions containing them and uses therefor are described. | 04-07-2011 |
20110098329 | CATALYZED CARBONYLATION IN THE SYNTHESIS OF ANGIOTENSIN II ANTAGONISTS - One embodiment disclosed in the invention is the efficient synthesis of halogenated biaryl starting material via Grignard chemistry and the use thereof. Another embodiment of the invention is the reaction of catalyzed carbonylation of the 3′-(2′-halo-biphenyl-4-ylmethyl)-1,7′-dimethyl-2′-propyl-1H,3′H-[2,5′]bibenzoimidazolyl (TLMH) using either gaseous carbon monoxide in a solvent mixture containing water; or formic acid salts optionally together with acetic acid in anhydrous solvent. | 04-28-2011 |
20110105539 | 2'-HALOBIPHENYL-4-YL INTERMEDIATES IN THE SYNTHESIS OF ANGIOTENSIN II ANTAGONISTS - A process for obtaining 2′-halo-4-methylbiphenyls is described, which comprises reacting 4 halotoluene with a 1,2-dihalobenzene in the presence of elemental metal such as magnesium, lithium or zinc, wherein 0 to 0.9 molar, particularly 0 to 0.2 molar excess of 4-halotoluene in regard to 1,2-dihalobenzene is used, and arised organometal intermediates are quenched by elemental mental halogen. In addition, the coupling of arised 2′-halo-4-methylbiphenyls with 2-(1-propyl)-4-methyl-6-(1′-methylbenzimidazole-2-il)benzimidazole to afford 3′-(2′-halo-biphenyl-4-ylmethyl)-1,7′-dimethyl-2′-propyl-1H,3′H-[2,5′]bibenzoimidazolyl, which can be further converted to organometallic compound and said organometallic compound is further reacted with formic acid derivative, such as N,N-dimethylformamide, alkylformiate or carbon dioxide to obtain telmisartan, is also described. Further described is use of in line analytics for monitoring the aforementioned reactions, process for preparing a pharmaceutical composition and/or dosage for, or use in preparing a medicament. | 05-05-2011 |
20120149895 | PROCESS FOR DIMETHYLATION OF ACTIVE METHYLENE GROUPS - The present invention discloses a process for dimethylation of active methylene groups. Specifically, the invention discloses a process for preparing 3-amino-2,2-dimethylpropanamide. Compounds produced by the present dimethylation process such as 3-amino-2,2-dimethylpropanamide can be used as intermediates in the route of synthesis of therapeutic, prophylactic or diagnostic agent, for example aliskiren or cryptophycin. Particularly, the invention relates to embodiments further extending to processes for preparing pharmaceutical dosage form comprising said therapeutic, prophylactic or diagnostic agents. More specifically, the invention relates to the use of compounds produced by the present dimethylation process for the manufacture of therapeutic, prophylactic or diagnostic agents or for the manufacture of pharmaceutical dosage forms comprising said therapeutic, prophylactic or diagnostic agents. The processes according to the present invention can be beneficially applied for the synthesis of various active pharmaceutical ingredients, such as aliskiren or crypthophycin. | 06-14-2012 |
20130317100 | PROCESS FOR THE PREPARATION OF 3-AROYL-5-AMINOBENZOFURAN DERIVATIVES - The present invention relates to a process for the preparation of 3-aroyl-5-aminobenzofuran derivatives useful as antiarrhythmic drugs which avoids the use of nitro intermediates. | 11-28-2013 |