Title:
SYNTHESIS OF KETOSULFONE ESTERS
Document Type and Number:
WIPO Patent Application WO2002069909
Kind Code:
A3
Abstract:
This invention encompasses a process for making a compound of Formula A AThese compounds are intermediates useful in the preparation of certain non-steroidal anti-inflammatory agents.
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Inventors:
CHEN CHENG YI (US)
TAN LUSHI (US)
CHEN WEIRONG (US)
TILLYER RICHARD (US)
DAGNEAU PHILIPPE (US)
O'SHEA PAUL (CA)
XU FENG (US)
TAN LUSHI (US)
CHEN WEIRONG (US)
TILLYER RICHARD (US)
DAGNEAU PHILIPPE (US)
O'SHEA PAUL (CA)
XU FENG (US)
Application Number:
PCT/US2002/000995
Publication Date:
February 27, 2003
Filing Date:
January 15, 2002
Export Citation:
Assignee:
MERCK & CO INC (US)
CHEN CHENG YI (US)
TAN LUSHI (US)
CHEN WEIRONG (US)
TILLYER RICHARD (US)
DAGNEAU PHILIPPE (US)
O'SHEA PAUL (CA)
XU FENG (US)
CHEN CHENG YI (US)
TAN LUSHI (US)
CHEN WEIRONG (US)
TILLYER RICHARD (US)
DAGNEAU PHILIPPE (US)
O'SHEA PAUL (CA)
XU FENG (US)
International Classes:
C07B53/00; C07B61/00; C07C315/02; C07C317/24; C07C319/20; C07C323/22; (IPC1-7): C07C69/66; C07C69/34; C07C69/52; C07C315/00; C07C317/00
Foreign References:
US5883267A | 1999-03-16 |
Other References:
LEBLANC, Y. ET AL.: "SAR in the alkoxy lactone series: the discovery of DFP, a potent and orally active COX-2 inhibitor", BIOORGANIC & MEDICINAL CHEMISTRY LETT., vol. 9, 1999, pages 2207 - 2212, XP004174161
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