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1. (WO2017033016) PROCESS FOR PREPARING AN ENDOTHELIN RECEPTOR ANTAGONIST
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Pub. No.: WO/2017/033016 International Application No.: PCT/GB2016/052636
Publication Date: 02.03.2017 International Filing Date: 24.08.2016
IPC:
C07D 239/47 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
239
Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
02
not condensed with other rings
24
having three or more double bonds between ring members or between ring members and non-ring members
28
with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
46
Two or more oxygen, sulfur or nitrogen atoms
47
One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine
Applicants:
CIPLA LIMITED [IN/IN]; Cipla House, Peninsula Business Park Ganpatrao Kadam Marg, Lower Parel Mumbai 400013, IN
KING, Lawrence [GB/GB]; GB (MW)
Inventors:
RAO, Dharmaraj Ramachandra; IN
MALHOTRA, Geena; IN
PATHI, Srinivas Laxminarayan; IN
PUPPALA, Ravikumar; IN
KOMMULA, Narayanaswami; IN
Agent:
A.A. THORNTON & CO.; 10 Old Bailey London EC4M 7NG, GB
Priority Data:
3266/MUM/201526.08.2015IN
Title (EN) PROCESS FOR PREPARING AN ENDOTHELIN RECEPTOR ANTAGONIST
(FR) PROCÉDÉ DE PRÉPARATION D'UN ANTAGONISTE DES RÉCEPTEURS D'ENDOTHÉLINE
Abstract:
(EN) The present invention relates to a process for preparing macitentan of Formula (I): to macitentan prepared according to such a process and to macitentan in substantially pure form.
(FR) La présente invention concerne un procédé de préparation d'un macitentan de Formule (I) : un macitentan préparé selon ledit procédé et un macitentan sous une forme sensiblement pure.
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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)