Abstract:
Enzymatically cleavable chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature before a bond by which an enzymatically cleavable labile substituent thereof is intentionally cleaved, are disclosed. These compounds can be represented by formula (I) wherein X and X each represent, individually, hydrogen, a hydroxyl group, a halo substituent, an unsubstituted lower alkyl group, a hydroxy (lower) alkyl group, a halo (lower) alkyl group, a phenyl group, a halophenyl group, an alkoxyphenyl group, a hydroxyalkoxy group, a cyano group, a carboxyl or substituted carboxyl group or an amide group, with at least one of X and X being other than hydrogen; and R1 and R2 individually or together, represent an organic substituent that does not interfere with the production of light when the dioxetane compound is enzymatically cleaved and that satisfies the valence of the dioxetane compound's 4-carbon atom, with the provisos that if R1 and R2 represent individual substituents the R2 substituent is aromatic, heteroaromatic, or an unsaturated substituent in conjugation with an aromatic ring, and that at least one of R1 and R2 is, or R1 and R2 taken together are, an enzymatically cleavable labile group-substituted fluorescent chromophore group that produces a luminescent substance when the enzymatically cleavable labile substituent thereof is removed by an enzyme. The corresponding dioxetanes which, instead of being substituted at the 5' or 7', or at the 5' and 7' positions, instead contain a 4' methylene group, are also disclosed, as are intermediates for all these 3-substituted adamant-2'-ylidenedioxetanes, and their use as reporter molecules in assays.
Abstract:
Chemiluminescent compositions, methods, assays and kits for oxidative enzymes are described. Further disclosed are dioxetane compounds of the form: 0-0 ΛR R R T (i) where R can independently be any branched alkyl or cycloalkyl group which provides stabilization for the dioxetane or where both R groups together form a cycloalkyl or polycycloalkyl moiety spiro bound to the dioxetane ring, wherein each R group or the spiro bound moiety can be unsubstituted or substituted with one or more electron- withdrawing groups or or electron donating groups, or groups providing preferential oxidative isozyme substrate recognition, and wherein Ri is an aryl group, or an alkyl group of 1-20 carbon atoms, which can be optionally substituted with 1 or more halogen atoms, and wherein T is an aryl or heteroaryl ring capable of emitting light upon enzyme activated decomposition of the dioxetane I. Kits, methods and assays are also disclosed that comprise the dioxetane compounds.
Abstract:
Chemiluminescent compositions, methods, assays and kits for oxidative enzymes are described. Further disclosed are dioxetane compounds of the form: 0-0 ?R R R T (i) where R can independently be any branched alkyl or cycloalkyl group which provides stabilization for the dioxetane or where both R groups together form a cycloalkyl or polycycloalkyl moiety spiro bound to the dioxetane ring, wherein each R group or the spiro bound moiety can be unsubstituted or substituted with one or more electron- withdrawing groups or or electron donating groups, or groups providing preferential oxidative isozyme substrate recognition, and wherein Ri is an aryl group, or an alkyl group of 1-20 carbon atoms, which can be optionally substituted with 1 or more halogen atoms, and wherein T is an aryl or heteroaryl ring capable of emitting light upon enzyme activated decomposition of the dioxetane I. Kits, methods and assays are also disclosed that comprise the dioxetane compounds.
Abstract:
Reagents, kits and methods for detecting biological molecules by energy transfer from an activated chemiluminescent substrate to an energy acceptor dye such as a J-aggregated dye are described.