Abstract:
Chemiluminescent 1,2-dioxetanes derived from substituted aromatic esters or ketones and spiro-fused ketones with either pi -electron system in the ring or with carbon-carbon double bond or triple bond(s) in the spiro-fused ring are provided herein. These 1,2-dioxetanes have electron donating or withdrawing groups at the four-membered peroxide ring, thus, the 1,2-dioxetanes ring hereof is affected by the added electronic charge.
Abstract:
Chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature, represented by formula (I) or (II), wherein T is (a) or (b).
Abstract:
A chemiluminescent assay method and compositions are described which use a haloalkoxy group-substituted dioxetane which is deprotected by a hydrolytic enzyme to undergo a chemiluminescent reaction. Chemiluminescent 1,2-dioxetane compounds substituted on the dioxetane ring with a haloalkoxy group which can be triggered by a reagent to generate light are disclosed. Haloalkoxy group-substituted dioxetanes are useful for the detection of triggering agents including enzymes. The enzyme may be present alone or linked to a member of a specific binding pair in an immunoassay, DNA probe assay or other assay where the enzyme is bound to a reporter molecule.
Abstract:
Chemiluminescent electron-rich aryl-substituted 1,2-dioxetane compounds are disclosed in which the aryl group is poly-substituted with suitable electron-donating groups such that the light-emitting pattern of the molecule results in a very high luminescent count, thus providing for a sensitive and precise assay for haptens, analytes, polynucleotides and the like. These substituted aryl-containing 1,2-dioxetane compounds can be used as direct labels in an immunoassay or when derivatized with an appropriate leaving group, can be used as a substrate for an enzyme immunoassay. The unusual chemiluminescence of the compounds allows the timing of the luminescent reaction to be exactly controlled.
Abstract:
A novel synthesis of 1,2-dioxetane phosphate alkali metal salts and novel intermediates employed in this synthesis are disclosed. A hydroxyaryl enol ether alkali metal salt having formula (1), wherein T can be an unsubstituted or substituted adamant-2'-ylidene group, R can be a methyl group, Y can be a phenyl group and M can be a sodium cation, is reacted with a phosphorohalidate to give the corresponding enol ether ethylene phosphate, which is then reacted with an alkali metal cyanide to give the corresponding enol ether cyanoethyl phosphate diester alkali metal salt intermediate. Singlet oxygen addition to this enol ether cyanoethyl phosphate diester alkali metal salt intermediate to give the corresponding 1,2-dioxetane cyanoethyl phosphate diester alkali metal salt, followed by beta -elimination of the cyanoethyl group using an alkali metal hydroxide or the like, gives the corresponding 1,2-dioxetane phosphate alkali metal salt.
Abstract:
A novel synthesis of compounds having formula (I), wherein T is a stabilizing spiro-linked polycycloalkylidene group, R is a C1-C20 alkyl, aralkyl or heteroatom containing group, Y is an aromatic fluorescent chromophore, and Z is a cleavable group which, when cleaved, induces decomposition of the dioxetane ring and emission of optically detectable light, is disclosed. A tertiary phosphorous acid alkyl ester of the formula (R O)3P, wherein R is a lower alkyl group, is reacted with an aryl dialkyl acetal produced by reacting a corresponding aryl aldehyde with an alcohol of the formula R OH, wherein R is as defined above, to produce a 1-alkoxy-1-aryl-methane phosphonate ester of formula (II), reacting the phosphonate with base to produce a phosphonate-stabilized carbanion, reacting the carbanion with a ketone of formula (III), wherein T is as defined above, to produce an enol ether of formula (IV), then oxygenating the double bond in the enol ether to give the corresponding 1,2-dioxetane compound. Hydroxyaryl enol ether alkali metal salts having formula (V), in which T is a fused, substituted or unsubstituted polycycloalkylidene group, OR is an ether group, Y is a light-emitting fluorophore-forming group which will be part of a luminescent substance formed by decommposition of a 1,2-dioxetane subsequently formed from the hydroxyaryl enol ether alkali metal salt, capable of absorbing energy to form an excited state from which it emits optically detectable energy to return to its ground state, and AM is an alkali metal cation, processes for the preparation of these intermediate salts and their use as starting materials for acylation, phosphorylation and glycosylation reactions to give intermediates reactable to give stable, water-soluble chemiluminescent 1,2-dioxetanes, particularly ones that are enzymatically cleavable, are also disclosed.
Abstract:
Triggerable dioxetanes with a fluorescent molecule containing group bonded or tethered in the dioxetane so as to produce fluorescence from the group are described. The compounds are useful in immunoassays and in probes using enzymes or other chemicals for triggering the dioxetanes to produce light from the fluorescent molecule in the group as a signal.
Abstract:
The present invention provides dioxetane-based chemiluminescence probes, more specifically fluorophore-tethered dioxetane-based chemiluminescence probes and compositions thereof. The chemiluminescence probes disclosed are useful for both diagnostics and in vivo imaging.
Abstract:
The present invention is directed to therapeutic compounds capable of targeting cancer cells and cancer stem cells. The present invention is further directed to compositions comprising these therapeutic compounds and methods of treating cancer comprising administering these therapeutic compounds.