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1. (WO2011145100) PROCESS FOR PREPARATION OF CANDESART AN CILEXETIL SUBSTANTIALLY FREE OF DES-CANDESARTAN CILEXETIL IMPURITY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/145100    International Application No.:    PCT/IN2010/000340
Publication Date: 24.11.2011 International Filing Date: 20.05.2010
IPC:
A01N 43/42 (2006.01)
Applicants: HETERO RESEARCH FOUNDATION [IN/IN]; Plot N° B-80 & 81 A.P.I.E. Balanagar Hyderabad 500018 (IN) (For All Designated States Except US).
PARTHASARADHI REDDY, Bandi [IN/IN]; (IN) (For US Only).
RATHNAKAR REDDY, Dasari [IN/IN]; (IN) (For US Only).
MURALIDHARA REDDY, Dasari [IN/IN]; (IN) (For US Only).
RAJI REDDY, Rapolu [IN/IN]; (IN) (For US Only).
RAMAKRISHNA REDDY, Matta [IN/IN]; (IN) (For US Only).
VAMSI KRISHNA, Bandi [IN/IN]; (IN) (For US Only)
Inventors: PARTHASARADHI REDDY, Bandi; (IN).
RATHNAKAR REDDY, Dasari; (IN).
MURALIDHARA REDDY, Dasari; (IN).
RAJI REDDY, Rapolu; (IN).
RAMAKRISHNA REDDY, Matta; (IN).
VAMSI KRISHNA, Bandi; (IN)
Priority Data:
Title (EN) PROCESS FOR PREPARATION OF CANDESART AN CILEXETIL SUBSTANTIALLY FREE OF DES-CANDESARTAN CILEXETIL IMPURITY
(FR) PROCÉDÉ PERMETTANT DE PRÉPARER UN CILEXÉTIL DE CANDÉSARTAN NE CONTENANT SENSIBLEMENT PAS D'IMPURETÉ DE CILEXÉTIL DE DES-CANDÉSARTAN
Abstract: front page image
(EN)The present invention provides a process for preparation of candeartan cilexetil substantially free of 2,3-dihydro-2-oxo-3-[[2'-(2H-tetrazol-5-yl)[l,l-biphenyl]-4- yl]methyl]-l-[[(cyclohexyloxy)carbonyl]oxy]ethylester-lH-benzimidazole-7- carboxylate (des-candesartan cilexetil) impurity.
(FR)La présente invention a trait à un procédé permettant de préparer un cilexétil de candésartan ne contenant sensiblement pas d'impureté de 2,3-dihydro-2-oxo-3-[[2'-(2H-tétrazol-5-yl)[l,l-biphényl]-4- yl]méthyl]-l-[[(cyclohexyloxy)carbonyl]oxy]ester d'éthyle-lH-benzimidazole-7- carboxylate (cilexétil de des-candésartan).
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, 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 (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, 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)