Title:
HETEROCYCLIC COMPOUNDS AND PROCESS FOR THE PREPARATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2001/019805
Kind Code:
A1
Abstract:
An industrially advantageous process for the preparation of compounds of general formula (II) (wherein X is chloro or bromo; and the other symbols are each as defined above or salts thereof, characterized by reacting a compound of general formula (I) (wherein Y is sulfur or oxygen; A is an optionally substituted aromatic group; and R and R' are each independently hydrogen, alkyl, or cycloalkyl, or alternatively R and R' may be united to form a ring) or a salt thereof with an N-chloroamide derivative or an N-bromoamide derivative.
Inventors:
YAMANE TAIHEI (JP)
Application Number:
PCT/JP2000/006140
Publication Date:
March 22, 2001
Filing Date:
September 08, 2000
Export Citation:
Assignee:
TAKEDA CHEMICAL INDUSTRIES LTD (JP)
YAMANE TAIHEI (JP)
YAMANE TAIHEI (JP)
International Classes:
C07D263/32; C07D277/22; C07D277/24; (IPC1-7): C07D263/32; C07D263/44; C07D277/22; C07D277/24; C07D417/12
Foreign References:
| US5468762A | 1995-11-21 | |||
| JPS62178590A | 1987-08-05 |
Other References:
HING-KWOK HUNG ET AL.: "The total synthesis of 4-deoxy-D,L-daunosamine", CAN. J. CHEM., vol. 56, 1978, pages 638 - 644, XP002934384
Attorney, Agent or Firm:
Takahashi, Shuichi (Ltd. 17-85, Jusohonmachi 2-chome Yodogawa-ku Osaka-shi Osaka, JP)
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