Silver halide photographic light sensitive element for medical
radiography
    4.
    发明授权
    Silver halide photographic light sensitive element for medical radiography 失效
    卤化银照相感光元件用于医学放射学

    公开(公告)号:US5474881A

    公开(公告)日:1995-12-12

    申请号:US297806

    申请日:1994-08-30

    摘要: A medical radiographic element comprising a base bearing on each of its two major surfaces a layer of photographic silver halide emulsion sensitive to green light, said element having between the base and at least one silver halide layer a hydrophilic colloid layer containing a dye having a nucleus of the general formula: ##STR1## wherein: each R independently represents an alkyl group,each Y independently represents an electron attracting group andeach X represents a water solubilising group.

    摘要翻译: 一种医用射线照相元件,包括在其两个主表面的每一个上具有对绿色光敏感的一层照相卤化银乳剂的基座,所述元件在基底和至少一个卤化银层之间具有含有具有核的染料的亲水胶体层 其中:每个R独立地表示烷基,每个Y独立地表示吸电子基团,并且每个X表示水溶性基团。

    Pyrazole derivatives and herbicides containing them

    公开(公告)号:USRE34779E

    公开(公告)日:1994-11-08

    申请号:US946900

    申请日:1992-09-18

    摘要: A pyrazole derivative of the formula I ##STR1## wherein A is C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl or C.sub.2 -C.sub.4 alkynyl; B is hydrogen, C.sub.1 -C.sub.3 alkyl, halogen, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.2 -C.sub.4 alkoxyalkyl, C.sub.2 -C.sub.4 alkylthioalkyl or C.sub.2 -C.sub.4 alkoxycarbonyl; X is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, halogen, nitro, cyano, etc.; Y is --OR.sup.1 (wherein R.sup.1 is C.sub.3 -C.sub.8 cycloalkyl, etc), --O--L--O--R.sup.1 (wherein L is C.sub.1 -C.sub.6 alkylene which may be substituted by C.sub.1 -C.sub.3 alkyl), --O--L--OH, --O--L--O--L--O--R.sup.2 (wherein R.sup.2 is hydrogen, C.sub.1 -C.sub.6 alkyl group, etc.), --O--L--R.sup.3 (wherein R.sup.3 is phenyl which may be substituted by C.sub.1 -C.sub.3 alkyl, etc.), --O--M (wherein M is a 3- to 6-membered alicyclic group), --O--L--M, --O--L--NR.sup.4 R.sup.5 (wherein each of R.sup.4 and R.sup.5 is hydrogen or C.sub.1 -C.sub.6 alkyl, or R.sup.4 and R.sup.5 form a ring together with the adjacent nitrogen atom), --O--L--COOR.sup.4, --O--CH.dbd.CH--COOR.sup.4, --O--L--CN, --O--L--C(O)--R.sup.2, --O--L--S(O).sub.n --R.sup.4 (wherein n is an integer of from 0 to 2), --O--COOR.sup.4, --O--CONR.sup.4 R.sup.5, --OP(O)(OR.sup.4).sub.2, --S(O).sub.n R.sup.1, or --S(O).sub.n --L--O--R.sup.1 ; Z is halogen, nitro, C.sub.1 -C.sub.3 alkoxy, etc.; V is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; W is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, etc.; Q is hydrogen, C.sub.1 -C.sub.6 alkyl which may be substituted by halogen, . . . --C(O)--R.sup.7 (wherein R.sup.7 is phenyl which may be substituted), --S(O).sub.2 R.sup.7, --P(O)(OR.sup.7).sub.2, --L--C(O)--R.sup.7, --L--C(O)--N(R.sup.8)(R.sup.9) (wherein each of R.sup.8 and R.sup.9 is hydrogenor C.sub.1 -C.sub.6 alkyl), --L--R.sup.10 (wherein R.sup.10 is phenyl group may be substituted, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.7 alkoxy, or hydroxyl), --L--N(R.sup.8)(R.sup.9), --L--OR.sup.11 (wherein R.sup.11 is hydrogen, C.sub.1 -C.sub.6 alkyl, or C.sub.1 -C.sub.6 alkenyl), --L--OC(O)R.sup.12 (wherein R.sup.12 is C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy), --L--S(O).sub.n R.sup.11, --L--SC(O)R.sup.8, ##STR2## (wherein each of L1 and L2 is methylene, oxygen or sulfur, R.sup.12 is hydrogen or C.sub.1 -C.sub.3 alkyl, and m is 2 or 3); and a salt thereof.

    Pyrazol-5-ones
    9.
    再颁专利
    Pyrazol-5-ones 失效
    吡唑-5-酮

    公开(公告)号:USRE30420E

    公开(公告)日:1980-10-21

    申请号:US765666

    申请日:1977-02-04

    摘要: 1-Substituted pyrazole-5-ones of the formula ##STR1## and pharmaceutically acceptable, nontoxic salts thereof, wherein R is hydrogen or amino;R.sup.1 is hydrogen, alkyl, alkenyl, unsubstituted or substituted aryl or unsubstituted or substituted aralky;X isa. ethylene, ethylene wherein 1 hydrogen atom on one of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms, ethylene wherein 1 hydrogen atom on each of the two carbon atoms is substituted by alkyl of 1 to 4 carbon atoms or said ethylene which is linked to R.sup.2 via an oxygen or sulphur atom;b. propenyl, propenyl wherein 1 hydrogen atom on one, two or three of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms, said propenyl being linked to the N.sup.1 atom of the pyrazol ring via its methylene moiety; orc. methylene;provided that when X is methylene, R.sup.1 is not hydrogen if R is amino;R.sup.2 is aryl unsubstituted or substituted by:a. 1 or 2 of the same or different substituents selected from the group consisting of halogen, trifluoromethyl, alkyl of 1 to 8 carbon atoms, alkenyl of 2 to 8 carbon atoms, and lower alkoxy;b. cycloalkyl of 5, 6 or 7 carbon atoms or cycloalkenyl of 5, 6 or 7 carbon atoms;c. alkylamino, dialkylamino, cyano, trifluoromethoxy, nitro, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, or said carbamoyl wherein the nitrogen atom is a member of a heterocyclic ring, sulphamyl, alkylsulphamyl, dialkylsulphamyl, or said sulphamyl wherein the nitrogen is a member of a heterocyclic ring, or --SO.sub.n alkyl wherein n is 0, 1 or 2;d. alkylamino, dialkylamino, cyano, trifluoromethoxy, nitro, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, or said carbamoyl wherein the nitrogen atom is a member of a heterocyclic ring, sulphamyl, alkylsulphamyl, dialkylsulphamyl or said sulphamyl wherein the nitrogen is a member of a heterocyclic ring, or --SO.sub.n -- alkyl wherein n is 0, 1 or 2, and 1 or 2 of the same or different substituents selected from the group consisting of alkyl, alkenyl, alkoxy, halogen, and trifluoromethyl; ore. a fused, saturated or unsaturated 5-, 6-, or 7-membered ring or said ring containing 1 or 2 oxygen or sulphur atoms;are useful for their diuretic, saluretic, antihypertensive and antithrombotic effects.