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1. (WO2018037423) NOVEL PROCESS FOR PREPARATION OF CORTICOSTEROIDS
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/037423    International Application No.:    PCT/IN2017/050347
Publication Date: 01.03.2018 International Filing Date: 14.08.2017
IPC:
C07J 5/00 (2006.01), C07J 75/00 (2006.01)
Applicants: CORAL DRUGS PVT. LTD. [IN/IN]; 1001 Akash Deep Building 26-A Barakhamba Road, Delhi, 110001 (IN)
Inventors: TRIPATHI, Vinayak; (IN).
KUMAR, Rajesh; (IN).
BHUWANIA, Rohit; (IN).
BHUWANIA, Binay Kumar; (IN)
Agent: ARVIND, Chitra; (IN)
Priority Data:
201611028947 25.08.2016 IN
Title (EN) NOVEL PROCESS FOR PREPARATION OF CORTICOSTEROIDS
(FR) NOUVEAU PROCÉDÉ DE PRÉPARATION DE CORTICOSTÉROÏDES
Abstract: front page image
(EN)The present invention discloses a process for the preparation of pregnadiene derivatives having formula I, their stereoisomer and intermediate thereof. Formula I wherein each substituent is independently, R1 and R2 is hydrogen or C1 –C8straight, branched alkyl chain, saturated or unsaturated cycloalkyl; R3 is hydrogen or wherein R5 represents C1-C8 straight, branched alkyl chain or cycloalkyl; R4 is hydrogen or halogen; R6 is hydrogen or halogen;
(FR)La présente invention concerne un procédé de préparation de dérivés de prégnadiène de formule I, leur stéréo-isomère et leur intermédiaire. Formule I dans laquelle chaque substituant est indépendamment, R 1 et R 2 est l'hydrogène ou C 1 -C 8 droite, chaîne alkyle ramifiée, cycloalkyle saturé ou insaturé; R 3 est un hydrogène ou, où R 5 représente C 1 -C 8 droite, alkyle ramifié ou cycloalkyle; R 4 est un atome d'hydrogène ou un atome d'halogène; R 6 est un atome d'hydrogène ou un atome d'halogène;
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)