Xanthine derivatives
    8.
    发明授权
    Xanthine derivatives 失效
    黄嘌呤衍生物

    公开(公告)号:US5290782A

    公开(公告)日:1994-03-01

    申请号:US839690

    申请日:1992-02-24

    摘要: Novel xanthine compounds represented by the following formula: ##STR1## wherein each of X.sup.1 and X.sup.2 independently represents oxygen or sulfur; and Q represents; ##STR2## where ----- represents a single bond or a double bond; Y represents a single bond or alkylene, n represents 0 or 1, each of W.sup.1 and W.sup.2 independently represents hydrogen, lower alkyl or amino, Z represents --CH.sub.2 -, --O--, --S-- or --NH--; represents ##STR3## each of R.sup.1 and R.sup.2 independently represents hydrogen, lower alkyl, allyl or propargyl; and R.sup.3 represents hydrogen or lower alkyl, and when Q represents the groups other than ##STR4## each of R.sup.1, R.sup.2 and R.sup.3 independently represents hydrogen or lower alkyl;provided that when Q is ##STR5## then R.sup.1 R.sup.2 and R.sup.3 are notsimultaneously methyl; and pharmaceutically acceptable salts thereof have a diuretic effect, a renal-protecting effect and a bronchodilatory effect.

    摘要翻译: 由下式表示的新型黄嘌呤化合物:其中X1和X2各自独立地表示氧或硫; 和Q表示; 其中-----表示单键或双键; Y表示单键或亚烷基,n表示0或1,W1和W2各自独立地表示氢,低级烷基或氨基,Z表示-CH2 - , - O - , - S-或-NH-。 R1和R2各自表示氢,低级烷基,烯丙基或炔丙基; 且R 3表示氢或低级烷基,并且当Q表示除R1之外的基团时,R 1,R 2和R 3各自独立地表示氢或低级烷基; 条件是当Q为时,则R1 + L,R2和R3不同时为甲基; 及其药学上可接受的盐具有利尿作用,肾脏保护作用和支气管扩张作用。

    Hexitol derivatives
    9.
    发明授权
    Hexitol derivatives 失效
    HEXITOL衍生物

    公开(公告)号:US5120737A

    公开(公告)日:1992-06-09

    申请号:US764827

    申请日:1991-09-24

    IPC分类号: C07D493/04

    CPC分类号: C07D493/04

    摘要: A hexitol derivative represented by formula (I) ##STR1## wherein R represents hydrogen, unsubstituted or lower alkyl-substituted cycloalkyl, lower alkenyl, lower alkoxy, lower alkanoyl, piperidyl or ##STR2## wherein each of m and n independently represents an integer of 0 to 3; each of X, Y and Z independently represents hydrogen, lower alkyl, lower alkoxy, lower alkanoyl, lower alkanoyloxy, hydroxyl, halogen or nitro or a pharmaceutically acceptable salt thereof.

    Hexitol derivatives having vasodilative activity
    10.
    发明授权
    Hexitol derivatives having vasodilative activity 失效
    具有血液活性的HEXITOL衍生物

    公开(公告)号:US5053408A

    公开(公告)日:1991-10-01

    申请号:US508701

    申请日:1990-04-13

    CPC分类号: C07D493/04

    摘要: Disclosed is a hexitol derivative represented by the formula (I): ##STR1## wherein Q represents a formula selected from the group consisting of ##STR2## wherein a represents NH, O or S;each of b, c and d independently represents CH or N;each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represents hydrogen, lower alkyl, trifluoromethyl, aryl, lower alkanoyloxy, amino, lower alkylamino, lower alkanoylamino, lower alkanoyl, aroyl, halogen, nitro, (CH.sub.2).sub.m OR.sup. 7, (CH.sub.2).sub.m SR.sup.7, (CH.sub.2).sub.m CO.sub.2 R.sup.7 where R.sup.7 represents hydrogen or lower alkyl and m represents an integer of 0 to 3;each of R.sup.5 and R.sup.6 independently represents hydrogen or lower alkyl;U represents >N-- or ##STR3## W represents a single bond, --O-- or --S--; X represents ##STR4## wherein each of Y.sup.1 and Y.sup.2 independently represents hydrogen, lower alkyl, hydroxyl, lower alkanoyloxy, nitrile or phenyl; or Y.sup.1 and Y.sup.2 are combined together to form oxygen;each of Y.sup.3 and Y.sup.4 independently represents hydrogen or lower alkyl; and l is an integer of 0 to 6, and where l is an integer of 2 to 6, each ##STR5## may be the same or different; Z represents hydrogen or nitro; and, n is 2 or 3 or a pharmaceutically acceptable salt thereof. The compounds show prominent coronary vasodilative activities, and are useful in treating angina pectoris and myocardial infarction.