| 摘要 |
<p>Novel chemiluminescent compounds are suitable for use in labeling biological molecules for assays such as immunoassays. These chemiluminescent labels are characterized by the incorporation of stable leaving groups. One class of these chemiluminescent labels comprises salts in which the leaving group contains a carboxyl carbon atom or its isoelectronic equivalent and a five-membered ring, including at least one heteroatom. The heteroatom is preferably oxygen or sulfur. This leaving group is linked to a positively charged moiety capable of producing light by chemiluminescence, which can be an acridinium, phenanthridinium, quinolinium, or benzacridinium moiety. Both the leaving group and the positively charged moiety can be substituted, such as with reactive substituents for covalently linking the label to a biological molecule. Substituents on the five-membered ring of the leaving group can form an additional ring. An additional class of these chemiluminescent labels comprises a chemical group that can produce light by chemiluminescence covalently linked to a leaving group comprising a moiety containing a sulfur, phosphorus, or carbon atom double-bonded to a more electronegative atom or atoms.</p> |
