Process for preparing aloe-emodin
    2.
    发明授权
    Process for preparing aloe-emodin 有权
    芦荟大黄素的制备方法

    公开(公告)号:US07453004B2

    公开(公告)日:2008-11-18

    申请号:US11667087

    申请日:2005-11-11

    CPC classification number: C07C66/02

    Abstract: A process for preparing aloe-emodin from aloin by oxidizing aloin by treatment with an oxygen-containing gas in the presence of an acid. The aloe-emodin may be used for the production of rhein and diacerein by oxidizing aloe-emodin by treatment with a chromium-free oxidizing medium to obtain rhein and purifying the rhein obtained. The rhein may be acetylated to obtain diacerein.

    Abstract translation: 一种通过在酸存在下用含氧气体处理氧化芦荟来从芦荟中制备芦荟大黄素的方法。 芦荟大黄素可用于通过用无铬氧化介质处理氧化芦荟大黄素来生产大黄酸和双醋瑞因,以获得大黄酸并纯化获得的大黄酸。 可以将大黄酸乙酰化以获得双醋瑞因。

    Substances for use in treating psoriasis
    3.
    发明授权
    Substances for use in treating psoriasis 有权
    用于治疗牛皮癣的物质

    公开(公告)号:US06844365B2

    公开(公告)日:2005-01-18

    申请号:US09798355

    申请日:2001-03-02

    Inventor: Guido Di Napoli

    CPC classification number: A61K31/192 A61K31/222

    Abstract: It is disclosed the use of diacerein or a pharmaceutically acceptable derivative thereof for the manufacture of a pharmaceutical composition for the treatment of psoriasis or diseases associated therewith, such as psoriatic arthritis.

    Abstract translation: 公开了双醋瑞因或其药学上可接受的衍生物在制备用于治疗牛皮癣或其相关疾病的药物组合物如牛皮癣关节炎中的用途。

    Process for the preparation of diacerein
    4.
    发明授权
    Process for the preparation of diacerein 失效
    制备双醋瑞因的方法

    公开(公告)号:US5670695A

    公开(公告)日:1997-09-23

    申请号:US376722

    申请日:1995-01-23

    Inventor: Guido Di Napoli

    CPC classification number: C07C67/293 C07C2103/24

    Abstract: The present invention relates to a process for the preparation of 1,8-diacetoxy-3-carboxyanthraquinone, also known as diacerein, via aloin acetylation, oxidation of the acetylated product, and purification of the raw diacerein obtained by means of crystallization from 2-methoxyethanol or N,N-dimethylacetamide and optionally by dissolution of the corresponding salt with triethylamine in methylene chloride, followed by removal of the insoluble residue.

    Abstract translation: 本发明涉及通过芦荟乙酰化,乙酰化产物的氧化,以及通过2-甲基-2-吡咯烷酮的结晶得到的生成的双醋瑞因的纯化制备1,8-二乙酰氧基-3-羧基蒽醌(也称为双醋瑞因)的方法, 甲氧基乙醇或N,N-二甲基乙酰胺,任选地通过将相应的盐与三乙胺在二氯甲烷中溶解,然后除去不溶性残余物。

    Process For Preparing Aloe-Emodin
    7.
    发明申请
    Process For Preparing Aloe-Emodin 有权
    芦荟大黄素的制备方法

    公开(公告)号:US20080125611A1

    公开(公告)日:2008-05-29

    申请号:US11667087

    申请日:2005-11-11

    CPC classification number: C07C66/02

    Abstract: A process for preparing aloe-emodin from aloin by oxidizing aloin by treatment with an oxygen-containing gas in the presence of an acid. The aloe-emodin may be used for the production of rhein and diacerein by oxidizing aloe-emodin by treatment with a chromium-free oxidizing medium to obtain rhein and purifying the rhein obtained. The rhein may be acetylated to obtain diacerein.

    Abstract translation: 一种通过在酸存在下用含氧气体处理氧化芦荟来从芦荟中制备芦荟大黄素的方法。 芦荟大黄素可用于通过用无铬氧化介质处理氧化芦荟大黄素来生产大黄酸和双醋瑞因,以获得大黄酸并纯化获得的大黄酸。 可以将大黄酸乙酰化以获得双醋瑞因。

    Aromatic derivatives and iron complexes thereof for the use as normalizing agents of the iron level
    8.
    发明授权
    Aromatic derivatives and iron complexes thereof for the use as normalizing agents of the iron level 失效
    芳族衍生物和铁络合物,用作铁水平的标准化剂

    公开(公告)号:US06455578B1

    公开(公告)日:2002-09-24

    申请号:US09830800

    申请日:2001-04-30

    Inventor: Guido Di Napoli

    CPC classification number: C07D311/22 C07C49/82

    Abstract: The present invention is directed to aromatic derivatives of formula (I), wherein: R1 is (a), wherein R3 and R4 are selected from between H and OH, provided that R3 and R4 are not simultaneously H, and R2 is H; or R1 and R2 taken together, are (b), wherein R5 is selected from between CH3 and (CH2)5OH, to the iron complexes thereof, and to their use for the preparation of pharmaceutical compositions for the normalization of iron level.

    Abstract translation: 本发明涉及式(I)的芳族衍生物,其中:R1是(a),其中R3和R4选自H和OH之间,条件是R3和R4不同时为H,R2为H; 或R 1和R 2一起是(b),其中R 5选自CH 3和(CH 2)5 OH,其铁络合物,以及它们在制备用于铁含量标准化的药物组合物中的用途。

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