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1. (WO2005108375) PROCESS FOR THE PREPARATION OF TELMISARTAN
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/108375    International Application No.:    PCT/GB2005/001799
Publication Date: 17.11.2005 International Filing Date: 10.05.2005
Chapter 2 Demand Filed:    09.03.2006    
IPC:
A61K 31/4184 (2006.01), C07D 235/18 (2006.01)
Applicants: CIPLA LIMITED [IN/IN]; 289 Bellasis Road, Mumbai Central, Mumbai 400 008 (IN) (For All Designated States Except US).
KANKAN, Rajendra, Narayanrao [IN/IN]; (IN) (For US Only).
RAO, Dharmaraj, Ramachandra [IN/IN]; (IN) (For US Only).
SRINIVAS, Pathi, L. [IN/IN]; (IN) (For US Only).
RAVIKUMAR, Puppala [IN/IN]; (IN) (For US Only).
TURNER, Craig, Robert [GB/GB]; (GB) (MW only)
Inventors: KANKAN, Rajendra, Narayanrao; (IN).
RAO, Dharmaraj, Ramachandra; (IN).
SRINIVAS, Pathi, L.; (IN).
RAVIKUMAR, Puppala; (IN)
Agent: TURNER, Craig, Robert; A.A. Thornton & Co, 235 High Holborn, London WC1V 7LE (GB)
Priority Data:
0410471.7 11.05.2004 GB
Title (EN) PROCESS FOR THE PREPARATION OF TELMISARTAN
(FR) PREPARATION DE TELMISARTAN
Abstract: front page image
(EN)An improved process for the preparation of telmisartan, or a pharmaceutically acceptable salt thereof, comprises subjecting 1H-Benzimidazole-2-n-propyl-4-methyl-6-(1'-methyl benimidazole-2'yl) of formula (II) and methyl-4-(bromomethyl) biphenyl-2-carboxylate of formula (III) to condensation and hydrolysis in a single step.
(FR)Procédé de fabrication amélioré de telmisartan, ou d'un sel pharmaceutiquement acceptable de cette substance, consistant à soumettre ) à condensation et hydrolyse en une seule opération un 1H-benzimidazole-2-n-propyl-4-méthyl-6-(1'-méthyl benimidazole-2'yl) représenté par la formule (II) et un méthyl-4-(bromométhyl) biphényl-2-carboxylate représenté par la formule (III).
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)