MA having a hydroxylated or oxidised lipid side chain and moenomycin analogues, and a process for the preparation and the use of these compounds

    公开(公告)号:DE4337630A1

    公开(公告)日:1995-05-11

    申请号:DE4337630

    申请日:1993-11-04

    Applicant: HOECHST AG

    Abstract: The invention relates to MA of the formula I in which R , R , R and R independently of one another are a hydroxyl group or hydrogen and R is hydrogen, the bond between the C atom carrying the substituent R and the C atom carrying the substituent R being a single bond, or R and R independently of one another are a hydroxyl group or hydrogen and R is hydrogen, the bond between the C atom carrying the substituent R and the C atom carrying the substituent R being a double bond or R , R and R independently of one another are a hydroxyl group or hydrogen and R and R together are an oxo group. MA is hydroxylated or oxidised in the lipid side chain by microorganisms of the genus Cryptococcus and in this form is a starting compound for the preparation of moenomycin analogues which can be employed as medicaments. The moenomycin analogues have the following chemical structure: in which R to R have the abovementioned meanings.A

    6.
    发明专利
    未知

    公开(公告)号:DE3483509D1

    公开(公告)日:1990-12-06

    申请号:DE3483509

    申请日:1984-09-07

    Applicant: HOECHST AG

    Abstract: Yeasts of the genus cryptococcus, preferably of the species C. Laurentii, form, in the presence of aminoacids, an L-aminoacid oxidase which stereospecifically converts L-aminoacids and their derivatives into the corresponding alpha -ketoacids. The immobilized cells are advantageously used for this conversion, which can also be used to resolve racemates.

    1-HYDROXY-CYTORHODINES, A MICROBIOLOGICAL METHOD FOR THEIR PREPARATION AND THEIR USE AS CYTOSTATIC AGENTS

    公开(公告)号:DE3573263D1

    公开(公告)日:1989-11-02

    申请号:DE3573263

    申请日:1985-07-01

    Applicant: HOECHST AG

    Abstract: 1. Claims for the Contracting States : BE, CH, DE, FR, GB, IT, LI, LU, NL, SE Compounds of the formula I see diagramm : EP0167954,P12,F1 wherein a) R1 and R2 are identical and each represent the sugar combination Roa-Rod-Rod or Roa-dF=CinB, or b) R1 and R2 are different and each represent the sugar combination Roa-Rod-Rod and Roa-dF-Rod, or c) R1 and R2 are different, R1 representing the sugar combination Roa-dF-CinA and R2 representing the sugar combination Roa-Rod-Rod or Roa-Rod-Acu, or R1 representing the sugar combination Roa-Rod-Acu and R2 representing the sugar combination Roa-Rod-Rod and their physiologically acceptable acid addition salts. 1. Claims for the Contracting State : AT A process for the preparation of a compound of the formula I see diagramm : EP0167954,P12,F2 wherein a) R1 and R2 are identical and each represent the sugar combination Roa-Rod-Rod or Roa-dF=CinB, or b) R1 and R2 are different and each represent the sugar combination Roa-Rod-Rod and Roa-dF-Rod, or c) R1 and R2 are different, R1 representing the sugar combination Roa-dF-CinA and R2 representing the sugar combination Roa-Rod-Rod or Roa-Rod-Acu, or R1 representing the sugar combination Roa-Rod-Acu and R2 representing the sugar combination Roa-Rod-Rod, and their physiologically acceptable acid addition salts, which comprises fermenting the microorganism Streptomyces purpurascens (DSM 2658) in the presence of a nutrient medium with an elevated oxygen supply, otherwise in a customary manner under aerobic conditions, and isolating the compounds formed from the culture liquid and the mycelium by extraction with organic solvents followed by chromatography or partition in a customary manner.

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