Title:
【発明の名称】ペニシラン酸誘導体の改良された新規合成方法
Document Type and Number:
Japanese Patent JPS63503072
Kind Code:
A
Abstract:
PCT No. PCT/DK87/00030 Sec. 371 Date Nov. 24, 1987 Sec. 102(e) Date Nov. 24, 1987 PCT Filed Mar. 24, 1987 PCT Pub. No. WO87/06230 PCT Pub. Date Oct. 22, 1987.The present invention relates to a new process for the debromination and/or deiodination of 6,6-dihalo- and 6-monohalopenicillanic acids or derivatives thereof by treatment with dialkyl, trialkyl or diaralkyl phosphite, the desired compounds being obtained in good to excellent yield and in a high state of purity.
Inventors:
Hansen, Eric Toneguard
Application Number:
JP50275887A
Publication Date:
November 10, 1988
Filing Date:
March 24, 1987
Export Citation:
Assignee:
Leo Pharmaceutical Products Limited A/S
International Classes:
C07D499/00; C07D499/87; C07D499/04; C07D499/86; C07D499/865; C07D499/897; (IPC1-7): C07D499/00
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)