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1. (WO2019064214) CRYSTALLINE LINAGLIPTIN INTERMEDIATE AND PROCESS FOR PREPARATION OF LINAGLIPTIN
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Pub. No.: WO/2019/064214 International Application No.: PCT/IB2018/057484
Publication Date: 04.04.2019 International Filing Date: 27.09.2018
IPC:
C07D 473/06 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
473
Heterocyclic compounds containing purine ring systems
02
with oxygen, sulfur, or nitrogen atoms directly attached in positions 2 and 6
04
two oxygen atoms
06
with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
Applicants:
BIOCON LIMITED [IN/IN]; 20th KM, Hosur Road, Electronic City post, Karnataka Bangalore 560 100, IN
Inventors:
PALLE, Venkata, Raghavendracharyulu; IN
RAJMAHENDRA, Shanmughasamy; IN
CHANDREGOWDA, Dharshan, Jakkali; IN
PONNUSAMY, Thangarasu; IN
Agent:
MAJUMDAR, Subhatosh; IN
GANGULI, Dr., Sanchita; IN
SEN, Abhishek; IN
VENKATESH, Mythili; IN
MAJUMDAR, Amrita; IN
KUNDU, Subarna; IN
CHAUBEY, Priyanka; IN
Priority Data:
20174103429227.09.2017IN
Title (EN) CRYSTALLINE LINAGLIPTIN INTERMEDIATE AND PROCESS FOR PREPARATION OF LINAGLIPTIN
(FR) INTERMÉDIAIRE DE LINAGLIPTINE CRISTALLIN ET PROCÉDÉ DE PRÉPARATION DE LINAGLIPTINE
Abstract:
(EN) The present invention provides novel crystalline forms B1 & B2 of linagliptin intermediate of structural formula V and methods for production of novel crystalline form of linagliptin intermediate represented by the following structural formula V.
(FR) La présente invention concerne de nouvelles formes cristallines B1 et B2 d'intermédiaire de linagliptine représentées par la formule développée V et des procédés de production d'une nouvelle forme cristalline d'intermédiaire de linagliptine représentée par la formule développée V suivante.
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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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)