METHOD AND INTERMEDIATE FOR PREPARING TULATHROMYCIN

    公开(公告)号:EP3406619A1

    公开(公告)日:2018-11-28

    申请号:EP16885495.8

    申请日:2016-01-18

    IPC分类号: C07H17/00 C07H17/08 C07H1/00

    CPC分类号: C07H1/00 C07H17/00 C07H17/08

    摘要: Disclosed are a method and an intermediate for preparing a tulathromycin. The method comprises the following step: in an organic solvent, subjecting a compound represented by formula (II) and an n-propylamine to a ring-opening addition shown below to obtain a tulathromycin represented by formula (I), wherein the organic solvent is a 1,2-propandiol. Tulathromycin obtained using the method has a high purity, with an HPLC purity being 95% and above, and up to 99% and above, satisfying a required purity for preparing a tulathromycin as a pharmaceutical formulation. The method has a high yield, is simple to operate, and is more suitable for industrial production.

    STREPTOMYCES AND METHOD FOR PRODUCING MILBEMYCIN A4 USING SAME
    90.
    发明公开
    STREPTOMYCES AND METHOD FOR PRODUCING MILBEMYCIN A4 USING SAME 审中-公开
    使用相同的产生米氏霉素A4的链霉素和方法

    公开(公告)号:EP3275995A1

    公开(公告)日:2018-01-31

    申请号:EP16771322.1

    申请日:2016-03-25

    IPC分类号: C12N1/20 C12P17/18 C12R1/55

    摘要: Provided are a Streptomyces (Streptomyces hygroscopicus) HS7522 and a method for preparing milbemycin A4 by culturing the Streptomyces. The Streptomyces (Streptomyces hygroscopicus) HS7522 of the present invention is deposited in "China General Microbiological Culture Collection Center" with an accession number of CGMCC No.9671 on September 16, 2014.

    摘要翻译: 提供了链霉菌(Streptomyces hygroscopicus)HS7522和通过培养链霉菌来制备米尔倍霉素A4的方法。 本发明的链霉菌(吸水链霉菌)HS7522于2014年9月16日保藏于“中国普通微生物菌种保藏中心”,保藏号为CGMCC No.9671。