申请人:Burroughs Wellcome Co.
公开号:US04347177A1
公开(公告)日:1982-08-31
A radioimmunoassay procedure has been discovered for bupropion [(.+-.)-2-t-butylamino-3-chloropropiophenone], an antidepressant compound, in biological fluids. Novel compounds of formula ##STR1## wherein either R.sub.2 is oxygen and R.sub.1 is (CH.sub.2).sub.n --O--(CO).sub.m --(CH.sub.2).sub.p --COOH where n is an integer from 0 to 5, m is 0 or 1, and p is an integer from 1 to 4; or R.sub.1 is hydrogen and R.sub.2 is N--O--(CH.sub.2).sub.q --COOH where q is an integer from 1 to 3, and novel methods of making them and novel intermediates useful therein are disclosed. Novel immunogens for raising bupropion specific antisera, and novel methods of making them are disclosed comprising conjugates of the novel compounds and suitable carrier material. The drug is added to the antisera together with novel radiolabeled competitor of formula ##STR2## wherein R' is a suitable radioisotope as described above and R.sub.3 is hydrogen, R.sub.4 is Cl, and R.sub.5 is oxygen, or R' is hydrogen and either (a) R.sub.3 is H and R.sub.4 is Cl and R.sub.5 is NO(CH.sub.2).sub.q CO--X where q is as defined for formula I and X is a group having formula III ##STR3## wherein R.sub.6 is a suitable radioisotope as described above, R.sub.7 is hydroxyl, and s is an integer from 1 to 4; (b) R.sub.4 is Cl, R.sub.5 is oxygen, and R.sub.3 is (CH.sub.2).sub.n --O--(CO).sub.m --(CH.sub.2).sub.p --CO--X where n, m, and p are as defined for formula I and X is as defined above; or (c) R.sub.3 is hydroxy, R.sub.5 is oxygen and R.sub.4 is a suitable radioisotope as defined above. The measure of radioactivity of the antisera bound radiolabeled competitor provides a measure of the amount of drug in the assayed biological fluid sample. A standard curve can be constructed from which the amount of drug in the assay sample can be interpolated. A kit is disclosed for practicing the radioimmunoassay.
一种用于在生物液体中检测抗抑郁化合物丁腈羟考酮的放射免疫分析方法已被发现。其中一些新化合物的公式为##STR1## 其中R.sub.2为氧,R.sub.1为(CH.sub.2).sub.n --O--(CO).sub.m --(CH.sub.2).sub.p --COOH,其中n为0至5的整数,m为0或1,p为1至4的整数;或者R.sub.1为氢,R.sub.2为N--O--(CH.sub.2).sub.q --COOH,其中q为1至3的整数。还揭示了制备这些新化合物的新方法和有用的新中间体。揭示了用于提高丁腈羟考酮特异性抗血清的新免疫原和制备它们的新方法,包括新化合物和适当载体材料的结合物。将药物与放射性标记的竞争物质一起加入抗血清中,所述竞争物质的公式为##STR2## 其中R'为适当的放射性同位素,R.sub.3为氢,R.sub.4为氯,R.sub.5为氧,或者R'为氢,且(a)R.sub.3为H,R.sub.4为Cl,R.sub.5为NO(CH.sub.2).sub.q CO--X,其中q如公式I所定义,X为具有公式III的基团##STR3## 其中R.sub.6为适当的放射性同位素,R.sub.7为羟基,s为1至4的整数;(b)R.sub.4为Cl,R.sub.5为氧,R.sub.3为(CH.sub.2).sub.n --O--(CO).sub.m --(CH.sub.2).sub.p --CO--X,其中n,m和p如公式I所定义,X如上所述;或(c)R.sub.3为羟基,R.sub.5为氧,R.sub.4为如上所定义的适当放射性同位素。抗血清结合放射性标记竞争物质的放射性测量提供了检测生物液体样品中药物量的测量值。可以从标准曲线中构建插值出检测样品中药物量。还揭示了用于实施放射免疫分析的套件。