Microbial transformation product
    6.
    发明授权
    Microbial transformation product 失效
    微生物转化产物

    公开(公告)号:US5270187A

    公开(公告)日:1993-12-14

    申请号:US824690

    申请日:1992-01-21

    摘要: Described is a process for producing a new immunosuppressant, L-682,992, a C-13, C-31 demethylated ring-rearranged analog of L-679,934, under novel fermentation conditions utilizing the microorganism, Actinoplanacete Sp., (Merck Culture Collection MA 6559) ATCC No. 53771. The macrolide immunosuppressant is useful in preventing human host rejection of foreign organ transplants, e.g. bone marrow and heart transplants.

    摘要翻译: 描述了在使用微生物Actinoplanacete Sp。(Merck Culture Collection MA 6559)的新型发酵条件下生产新的免疫抑制剂L-682,992,C-13,C-31脱甲基环重排的L-679,934类似物的方法 )ATCC No.53771.大环内酯类免疫抑制剂可用于预防异种器官移植的人宿主排斥,例如 骨髓和心脏移植。

    Macrolide antibiotic
    9.
    发明授权
    Macrolide antibiotic 失效
    大环内酯类抗生素

    公开(公告)号:US4374764A

    公开(公告)日:1983-02-22

    申请号:US199238

    申请日:1980-10-21

    摘要: Macrolide antibiotics are derivatives of the compound Mycoplanecin and have the formula: ##STR1## (in which R represents a hydrogen atom or an N-(.alpha.-hydroxybutyryl)-N-methylvalyl group). The compound in which R represents an N-(.alpha.-hydroxybutyryl)-N-methylvalyl group can be prepared by reducing Mycoplanecin and the compound in which R represents a hydrogen atom can be prepared by the hydrolysis of Mycoplanecin or of the compound of formula (I) in which R represents an N-(.alpha.-hydroxybutyryl)-N-methylvalyl group.

    摘要翻译: 大环内酯类抗生素是化合物Mycoplanecin的衍生物,具有下式:其中R表示氢原子或N-(α-羟基丁酰)-N-甲基缬氨酰基)。 其中R表示N-(α-羟基丁酰基)-N-甲基缬氨酰基的化合物可以通过降低Mycoplanecin来制备,其中R表示氢原子的化合物可以通过水解平均支原体或式 I),其中R表示N-(α-羟基丁酰基)-N-甲基缬氨酰基。