Preparation of perylene-3,4-dicarboxylic acid anhydrides
    4.
    发明授权
    Preparation of perylene-3,4-dicarboxylic acid anhydrides 失效
    苝-3,4-二羧酸酐的制备

    公开(公告)号:US06093834A

    公开(公告)日:2000-07-25

    申请号:US237639

    申请日:1999-01-26

    申请人: Leonhard Feiler

    发明人: Leonhard Feiler

    CPC分类号: C09B5/62 C07C51/54 C07D311/78

    摘要: Preparation of perylene-3,4-dicarboxylic acid anhydrides of the general formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can each be independently of one another hydrogen, halogen, C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.4 cycloalkyl, C.sub.1 -C.sub.20 alkoxy, phenyl, phenyloxy or phenylthio, where phenyl can in each case be mono- or polysubstituted by halogen, C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.14 cycloalkyl and/or C.sub.1 -C.sub.20 alkoxy; --NR.sup.5.sub.2 or --OR.sup.5, wherein R.sup.5 is hydrogen or C.sub.1 -C.sub.20 alkyl, or one of the pairs R.sup.1 /R.sup.2 and R.sup.3 /R.sup.4 each in 6,7- or 1,12-position is a bridge having the bridge atoms or bridge atom groups --O--, --S--, S.dbd.O, SO.sub.2 or --NR.sup.6, wherein R.sup.6 is hydrogen, C.sub.1 -C.sub.20 alkyl or C.sub.3 -C.sub.14 cycloalkyl, by treating a perylene-3,4-dicarboximide of formula II ##STR2## (a) in a first step with a base and, (b) in a second step, reacting the resultant anion with an alkylation agent R.sup.7 --X, X being halogen and R.sup.7 being unsubstituted or phenyl-substituted C.sub.1 -C.sub.20 alkyl, to the corresponding carboximide and,(c) in a third step, treating the alkylated carboximide first with a base and, after the treatment with a base, obtaining the perylene-3,4-dicarboxylic acid anhydride I by acidifying the reaction mixture, andnovel perylene-3,4-dicarboxylic acid anhydrides, novel N-alkylperylene-3,4-dicarboxylic acid imides and possibilities for the application of the compounds prepared according to this invention.

    摘要翻译: 制备通式Ⅰ的苝-3,4-二羧酸酐其中R 1,R 2,R 3和R 4各自独立地为氢,卤素,C 1 -C 20烷基,C 3 -C 4环烷基,C 1 -C 20烷氧基,苯基,苯氧基 或苯硫基,其中每种情况下苯基可被卤素,C 1 -C 20烷基,C 3 -C 14环烷基和/或C 1 -C 20烷氧基单取代或多取代; -NR 52或-OR 5,其中R 5是氢或C 1 -C 20烷基,或者每个6,7或1,12位中的一对R 1 / R 2和R 3 / R 4是具有桥原子或桥原子基团的桥 -O-,-S-,S = O,SO 2或-NR 6,其中R 6是氢,C 1 -C 20烷基或C 3 -C 14环烷基,通过在第一步中处理式II(a)的苝-3,4-二甲酰亚胺 与碱反应,(b)在第二步中,使所得阴离子与烷基化试剂R7-X,X为卤素,R7为未取代的或苯基取代的C1-C20烷基反应至相应的甲酰亚胺,和(c) 第三步,首先用碱处理烷基化的酰亚胺化物,在用碱处理后,通过酸化反应混合物得到苝-3,4-二羧酸酐I,并加入新的苝-3,4-二羧酸酐 ,新型N-烷基亚丙基-3,4-二羧酸酰亚胺以及应用根据本发明制备的化合物的可能性。

    Method for delivery of nucleic acids to cells using hypericin polyamine
complexes
    5.
    发明授权
    Method for delivery of nucleic acids to cells using hypericin polyamine complexes 失效
    使用金丝桃碱多胺复合物将核酸递送至细胞的方法

    公开(公告)号:US5824654A

    公开(公告)日:1998-10-20

    申请号:US300725

    申请日:1994-09-02

    摘要: The invention provides improved methods for delivery of nucleic acids to cells, which comprise forming ternary complexes between a hydrophobic, membrane-binding anion such as hypericin; a polycation such as polylysine; and a nucleic acid such as DNA; and contacting cells with the tenary complexes. Also provided are pharmaceutical formulations comprising these ternary complexes and a pharmaceutically acceptable carrier or diluent. The methods and compositions find use in mediating DNA uptake into cells, including gene therapy applications.

    摘要翻译: 本发明提供了将核酸递送至细胞的改进方法,其包括在疏水性的膜结合阴离子例如金丝桃素之间形成三元复合物; 聚阳离子如聚赖氨酸; 和核酸如DNA; 并使细胞与助剂络合物接触。 还提供了包含这些三元配合物和药学上可接受的载体或稀释剂的药物制剂。 该方法和组合物可用于介导DNA吸收进入细胞,包括基因治疗应用。

    Process for preparing anthracyclinones
    7.
    发明授权
    Process for preparing anthracyclinones 失效
    制备蒽醌的方法

    公开(公告)号:US5180758A

    公开(公告)日:1993-01-19

    申请号:US743373

    申请日:1991-08-26

    CPC分类号: C07C46/00 Y02P20/55

    摘要: 4-substituted anthracyclinones of general formula (I): ##STR1## wherein R represents a hydrogen atom or a COOR.sub.1 group in which R.sub.1 may be a hydrogen atom or an optionally substituted C.sub.1 -C.sub.10 alkyl group, which are intermediates in the preparation of antitumor anthracycline glycosides, are prepared by:(i)(a) reacting a 4-demethyl-4-sulfonyl-7-deoxy-13-dioxolanyl daunomycinone of formula (V): ##STR2## wherein R' represents an alkyl group having from 1 to 10 carbon atoms optionally substituted by one or more halogen atoms or an aryl group optionally substituted by halogen, alkyl, alkoxy or nitro, in a reducing environment with a catalytic amount of a compound of formula (VIII):ML.sub.n L'.sub.m wherein M represents a transition metal atom, L and L', which may be the same or different, each represent an anion or a neutral molecule and n and m may vary from 0 to 4, such as to obtain a compound of formula (VII): ##STR3## wherein R represents hydrogen; or (b) carbonylating a 4-demethyl-4-sulfonyl-7-deoxy-13-dioxolanyl daunomycinone of formula (V) as defined above, with carbon monoxide in the presence of a nucleophile R.sub.1 OH wherein R.sub.1 is as defined above, an organic or inorganic base and as catalyst a compound of formula (VIII) as defined above, such as to obtain a compound of formula (VII) as shown above wherein R represents a COOR.sub.1 group; and(ii) introducing an .alpha.-hydroxy group at the 7-position and removing the 13-oxo protecting group by acid hydrolysis from the resultant compound of formula (VII).