EP 0973742 A1 20000126 - ENDOTHELIN INTERMEDIATES BY ASYMMETRIC CONJUGATE ADDITION REACTION USING A CHIRAL ADDITIVE
Title (en)
ENDOTHELIN INTERMEDIATES BY ASYMMETRIC CONJUGATE ADDITION REACTION USING A CHIRAL ADDITIVE
Title (de)
ENDOTHELIN-ZWISCHENPRODUKTE DURCH EINE ASYMMETRISCH KONJUGIERTE ADDITIONSREAKTION UNTER VERWENDUNG EINES CHIRALEN ADDITIVES
Title (fr)
INTERMEDIAIRES DE L'ENDOTHELINE OBTENUS PAR REACTION D'ADDITION D'UN CONJUGUE ASYMETRIQUE EFFECTUEE AU MOYEN D'UN ADDITIF CHIRAL
Publication
Application
Priority
- GB 9705858 A 19970321
- US 9800263 W 19980109
- US 3546297 P 19970114
Abstract (en)
[origin: WO9830543A1] This invention relates to a process for the preparation of a key intermediate in the synthesis of an endothelin antagonist, having formula (I) by using a chiral additive to effect an asymmetric conjugate addition.
IPC 1-7
IPC 8 full level
C07B 37/02 (2006.01); C07B 53/00 (2006.01); C07D 213/30 (2006.01); C07D 213/48 (2006.01); C07D 213/55 (2006.01); C07D 213/56 (2006.01); C07D 213/85 (2006.01); C07D 263/06 (2006.01); C07D 263/52 (2006.01)
CPC (source: EP KR)
C07B 53/00 (2013.01 - EP); C07D 213/30 (2013.01 - EP KR); C07D 213/48 (2013.01 - EP); C07D 213/55 (2013.01 - EP); C07D 213/85 (2013.01 - EP); C07D 263/52 (2013.01 - EP); Y02P 20/55 (2015.11 - EP)
Citation (search report)
See references of WO 9830543A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
WO 9830543 A1 19980716; AU 5908998 A 19980803; AU 728441 B2 20010111; BR 9806875 A 20000418; CA 2277161 A1 19980716; CN 1243509 A 20000202; EA 002056 B1 20011224; EA 199900661 A1 20000228; EP 0973742 A1 20000126; HR P980001 A2 19981031; JP 2000507969 A 20000627; KR 20000070085 A 20001125; NZ 336220 A 20001222; PL 334318 A1 20000214; SK 93499 A3 20000516; TW 432028 B 20010501; YU 30499 A 20020619
DOCDB simple family (application)
US 9800263 W 19980109; AU 5908998 A 19980109; BR 9806875 A 19980109; CA 2277161 A 19980109; CN 98801833 A 19980109; EA 199900661 A 19980109; EP 98902416 A 19980109; HR P980001 A 19980105; JP 53106398 A 19980109; KR 19997006306 A 19990712; NZ 33622098 A 19980109; PL 33431898 A 19980109; SK 93499 A 19980109; TW 87100082 A 19980105;