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1. (WO2009139001) AN IMPROVED PROCESS FOR THE PREPARATION OF OXCARBAZEPINE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/139001    International Application No.:    PCT/IN2009/000272
Publication Date: 19.11.2009 International Filing Date: 06.05.2009
IPC:
C07D 223/26 (2006.01)
Applicants: MATRIX LABORATORIES LTD [IN/IN]; 1-1 -151/1/, IV Floor Sairam Towers, Alexander Road Secunderabad 500 003 (IN) (For All Designated States Except US).
KARUSALA, Nageswara Rao [IN/IN]; (IN) (For US Only).
TUMMALAPALLY, Uma, Sankara, Sastry [IN/IN]; (IN) (For US Only).
TALATALA, Appi, Reddy [IN/IN]; (IN) (For US Only).
DATTA, Debashish [IN/IN]; (IN) (For US Only)
Inventors: KARUSALA, Nageswara Rao; (IN).
TUMMALAPALLY, Uma, Sankara, Sastry; (IN).
TALATALA, Appi, Reddy; (IN).
DATTA, Debashish; (IN)
Agent: NARAHARI, Babu, Ambati; Plot No 34A, Anrich Industrial Estate Bollaram, Jinnaram Mandal, Medak DIST Hyderabad 500 055 Andhra Pradesh (IN)
Priority Data:
1135/CHE/2008 08.05.2008 IN
1678/CHE/2008 10.07.2008 IN
Title (EN) AN IMPROVED PROCESS FOR THE PREPARATION OF OXCARBAZEPINE
(FR) PROCÉDÉ PERFECTIONNÉ DE FABRICATION D'OXCARBAZÉPINE
Abstract: front page image
(EN)The present invention relates to an improved process for the preparation of 10-oxo- 10,l l-dihydiO-5H-dibenz[b,fjazepine-5-carboxamide (Oxcarbazepine) by reacting 10-methoxy-5H-dibenz[b,f]azepine (10-methoxyiminostilbene) and alkali metal cyanate in presence of α-hydroxy acids, and also relates to the process for the preparation of carbamazepine from iminostilbene. Further the present invention is directed to the novel crystalline form of 10-methoxy carbamazepine.
(FR)La présente invention porte sur un procédé perfectionné de fabrication de 10-oxo-10,11-dihydro-5H-dibenz[b,f]azépine-5-carboxamide (Oxcarbazépine) par réaction de 10-méthoxy-5H-dibenz[b,f]azépine (10-méthoxyiminostilbène) et de cyanate de métal alcalin en présence d'α-hydroxyacides. L'invention porte également sur un procédé de fabrication de carbamazépine à partir d'iminostilbène. En outre, la présente invention porte sur la nouvelle forme cristalline de la 10-méthoxycarbamazépine.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, 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)