Title:
PROCESS FOR PRODUCING TRITERPENE DERIVATIVE
Document Type and Number:
WIPO Patent Application WO/2003/080643
Kind Code:
A1
Abstract:
A process for producing the compound (V) or a salt thereof, the process being shown by the following reaction scheme. (II) (I) → (III) → (IV) → (V) (In the scheme, R1 and R2 each independently represents C1-8 alkyl.)
Inventors:
KOIKE HARUO (JP)
ODA KATSUO (JP)
NISHINO YUTAKA (JP)
KAKINUMA MAKOTO (JP)
ODA KATSUO (JP)
NISHINO YUTAKA (JP)
KAKINUMA MAKOTO (JP)
Application Number:
PCT/JP2003/003248
Publication Date:
October 02, 2003
Filing Date:
March 18, 2003
Export Citation:
Assignee:
SHIONOGI & CO (JP)
KOIKE HARUO (JP)
ODA KATSUO (JP)
NISHINO YUTAKA (JP)
KAKINUMA MAKOTO (JP)
KOIKE HARUO (JP)
ODA KATSUO (JP)
NISHINO YUTAKA (JP)
KAKINUMA MAKOTO (JP)
International Classes:
A61K31/56; A61P9/00; A61P43/00; C07C231/02; C07J63/00; C07J75/00; C07C233/33; (IPC1-7): C07J63/00; C07J75/00; C07C231/02; C07C235/76; A61K31/56; A61P9/00; A61P43/00
Domestic Patent References:
| WO1997027314A1 | 1997-07-31 | |||
| WO1992012991A1 | 1992-08-06 |
Foreign References:
| JPH07316188A | 1995-12-05 | |||
| EP0628569A1 | 1994-12-14 | |||
| JPH06345716A | 1994-12-20 |
Other References:
KONOIKE,T ET AL.: "Practical Partial Synthesis of Myriceric Acid, an Endothelin", J. ORG. CHEM., vol. 62, no. 4, 1997, pages 960 - 966, XP002968888
KONOIKE,T ET AL.: "Practical Large-Scale Synthesis of Endothelin Receptor Antagonist S-0139.", ORGANIC PROCESS RESEARCH & DEVELOPMENT, vol. 3, no. 5, 1999, pages 347 - 351, XP002968889
KONOIKE,T ET AL.: "Practical Large-Scale Synthesis of Endothelin Receptor Antagonist S-0139.", ORGANIC PROCESS RESEARCH & DEVELOPMENT, vol. 3, no. 5, 1999, pages 347 - 351, XP002968889
Attorney, Agent or Firm:
Yamauchi, Hideaki (Ltd. Intellectual Property Department 12-4,
Sagisu 5-chome, Fukushima-k, Osaka-shi Osaka, JP)
Download PDF: