Title:
PROCESSES FOR THE PREPARATION OF OXO-OXAZOLINE OR ALLOAMINO ACID DERIVATIVES
Document Type and Number:
WIPO Patent Application WO/2001/016117
Kind Code:
A1
Abstract:
A process for the preparation of compounds of general formula (I-A) or (I-B) which comprises the reaction step (A) or (B) (wherein R?1¿ is optionally substituted lower alkyl or the like; R?2¿ is lower alkyl, optionally substituted aralkyl, or the like; and R?3¿ is lower alkyl), characterized by treating a compound of general formula (II-A) or (II-B) with thionyl chloride.
Inventors:
KOBAYASHI MAKOTO (JP)
NAGAI MASAHIKO (JP)
KOIKE HARUO (JP)
NAGAI MASAHIKO (JP)
KOIKE HARUO (JP)
Application Number:
PCT/JP2000/005753
Publication Date:
March 08, 2001
Filing Date:
August 25, 2000
Export Citation:
Assignee:
SHIONOGI & CO (JP)
KOBAYASHI MAKOTO (JP)
NAGAI MASAHIKO (JP)
KOIKE HARUO (JP)
KOBAYASHI MAKOTO (JP)
NAGAI MASAHIKO (JP)
KOIKE HARUO (JP)
International Classes:
C07C227/32; C07D263/20; C07D263/26; C07K5/078; C07K5/097; C07C229/22; (IPC1-7): C07D263/20; C07K5/06
Domestic Patent References:
| WO1998008867A1 | 1998-03-05 |
Other References:
WILLIAMS,L. ET AL: "A CONVENIENT SYNTHESIS OF L-allo-TRHEONINE", HETEROCYCL. COMMUN., vol. 2, no. 1, 1996, pages 55 - 56, XP002934238
GIULIANO DELLE MONACHE: "An enantioselective,stereodivergent synthesis of threonine analogs", TETRAHEDRON:ASYMMETRY, vol. 8, no. 2, 1997, ROMA, pages 231 - 243, XP002934239
GIULIANO DELLE MONACHE: "An enantioselective,stereodivergent synthesis of threonine analogs", TETRAHEDRON:ASYMMETRY, vol. 8, no. 2, 1997, ROMA, pages 231 - 243, XP002934239
Attorney, Agent or Firm:
Yamauchi, Hideaki (Ltd. Intellectual Property Dept. 12-4, Sagisu
5-chome, Fukushima-k, Osaka-shi Osaka, JP)
Download PDF: