Products of reaction of isocyanates silyl with the compounds of the point of view interesting

摘要

P the invention relates to the reaction products of isocyanates. It relates to the formation of a product by reacting a compound such as a steroid or a hormone, with an isocyanate of the 2 - (4 ′ - trihydrocarbylsiloxyphényl) ethyl, possibly acetylated in position 2. / p & & p & the hydroxylated derivatives of these products are used, after the marking by radio - the active atoms, for the quantitative analysis of the antigen - antibodies in the blood. / p