摘要:
The present invention relates to novel modified fatty acid analogs, where a positron or gamma-emitting label is placed at a position on a fatty acid backbone and an organic substituent is substituted at 2,3; 3,4; 4,5; 5,6 and other sequence positions of a fatty acid backbone. Theses novel fatty acid analogs are designed to enter the tissues of interest by the same long chain fatty acid carrier mechanism as natural fatty acids, however, functional substituents in the 2,3; 3,4; 4,5; 5,6 and other sequence positions, block the catabolic pathway, thus trapping these analogs in a virtually unmodified form in the tissues of interest.
摘要:
Piperidine or piperazine compounds useful for treating neurodegenerated diseases characterized by the lack of dopamine neurons activity or for imaging the dopamine neurons are provided. The compounds are characterized by the formulae: wherein: n is an integer of 1 to 6; X, Y, Z1 and Z2 can be the same or different and are hydrogen, halo, haloalkyl, alkyl, aryl, (C1-C6) alkoxy, N-alkyl,(C2-C6) acyloxy, N-alkylene, —SH, —SR, wherein R is from the same group as R1 and R2 and can be the same or different than R1 and R2, amino, nitro, cyano, hydroxy, C(═O) OR6, —C(═O) NR5R4, NR3R2, or S(αO)k R1 wherein k is 1 or 2, and R1 to R6 are independently hydrogen or (C1-C6) alkyl; R1, and R2 can be the same or different and are hydrogen, (C1-C6) alkyl, hydroxyalkyl or mercaptoalkyl, —C(═O) OR1, cyano, (C1-C6) alkenyl, (C2-C6) alkynyl, or 1,2,4-oxadiazol-5-yl optionally substituted at the 3-position by Z4 wherein any (C1-C6) alky, (C1-C6) alkanoyl, (C2-C6) alkenyl or (C2-C6) alkynyl can optionally be substituted by 1, 2 or 3 Z; R7 can be hydrogen, O or phenyl R8 can be hydrogen, phenyl, halophenyl, nitrophenyl, pyridyl, piperonyl or sulfoxonitrophenyl Z4 is (C1-C6) alkyl or phenyl, optionally substituted by 1, 2 or 3 Z1 W is O or S T is amino or C1-C6 aminoalkyl A is N or C T is C1-C6 alklyl or sulfonyl and V is alkyl (C0-C6), alkenyl, alkynyl, haloaryl, alkyl phenol, alkyl halophenyl, and R1 or R2 as indicated above and φ is phenyl, naphthyl, thienyl or pyridinyl.
摘要:
Radiopharmaceutical compounds are disclosed. A tropane compound is linked through the N atom at the 8-position to a chelating ligand capable of complexing technetium or rhenium to produce a neutral labeled complex that selectively binds to the dopamine transporter over the serotonin transporter with a ratio of 10 or more. These compounds can be prepared as separate diastereoisomers as well as a mixture of diastereoisomers. Also disclosed are radiopharmaceutical kits for preparing the labeled radiopharmaceutical compounds.
摘要:
Novel meta substituted arylakylamine compounds are disclosed. These compounds can be administered as small molecule drugs to treat diseases or conditions associated with insufficient serotonin mediated nerve transmission, such as depression and obesity.
摘要:
One aspect of the present invention relates to a method of preparing radiofluorinated substituted alkyl, cycloalkyl, aryl, and alkenyl compounds. In a preferred embodiment, potassium fluoride-18 is used. Another aspect of the invention relates to arylammonium compounds containing fluorine-18 that are useful as imaging agents. In certain embodiments, the ammonium compound is a tetraaryl ammonium salt. Another aspect of the invention relates to arylsulfonium compounds containing fluorine-18 that are useful as imaging agents. In certain embodiments, the sulfonium compound is a triaryl sulfonium salt. Another aspect of the present invention relates to a method of obtaining a positron emission image of a mammal, comprising the steps of administering to a mammal a compound of the invention, and acquiring a positron emission spectrum of the mammal.
摘要:
The present invention relates to novel modified fatty acid analogs, where a positron or gamma-emitting label is placed at a position on a fatty acid backbone and an organic substituent is substituted at the 2,3; 3,4; 4,5; 5,6 and other sequence positions of a fatty acid backbone. These novel fatty acid analogs are designed to enter the tissues of interest by the same long chain fatty acid carrier mechanism as natural fatty acids, however, functional substituents in the 2,3; 3,4; 4,5; 5,6 and other sequence positions, block the catabolic pathway, thus trapping these analogs in a virtually unmodified form in the tissues of interest.
摘要:
One aspect of the present invention relates to a method of preparing radiofluorinated substituted alkyl, cycloalkyl, aryl, and alkenyl compounds. In a preferred embodiment, potassium fluoride-18 is used. Another aspect of the invention relates to arylammonium compounds containing fluorine-18 that are useful as imaging agents. In certain embodiments, the ammonium compound is a tetraaryl ammonium salt. Another aspect of the invention relates to arylsulfonium compounds containing fluorine-18 that are useful as imaging agents. In certain embodiments, the sulfonium compound is a triaryl sulfonium salt. Another aspect of the present invention relates to a method of obtaining a positron emission image of a mammal, comprising the steps of administering to a mammal a compound of the invention, and acquiring a positron emission spectrum of the mammal.
摘要:
The present invention relates to novel modified fatty acid analogs, where a positron or gamma-emitting label is placed at a position on a fatty acid backbone and an organic substituent is substituted at the 2,3; 3,4; 4,5; 5,6 and other sequence positions of a fatty acid backbone. These novel fatty acid analogs are designed to enter the tissues of interest by the same long chain fatty acid carrier mechanism as natural fatty acids, however, functional substituents in the 2,3; 3,4; 4,5; 5,6 and other sequence positions, block the catabolic pathway, thus trapping these analogs in a virtually unmodified form in the tissues of interest.
摘要:
One aspect of the present invention relates to a method of preparing radiofluorinated substituted alkyl, cycloalkyl, aryl, and alkenyl compounds. In a preferred embodiment, potassium fluoride-18 is used. Another aspect of the invention relates to arylammonium compounds containing fluorine-18 that are useful as imaging agents. In certain embodiments, the ammonium compound is a tetraaryl ammonium salt. Another aspect of the invention relates to arylsulfonium compounds containing fluorine-18 that are useful as imaging agents. In certain embodiments, the sulfonium compound is a triaryl sulfonium salt. Another aspect of the present invention relates to a method of obtaining a positron emission image of a mammal, comprising the steps of administering to a mammal a compound of the invention, and acquiring a positron emission spectrum of the mammal.
摘要:
The present invention relates to compounds and methods for imaging and treating Alzheimer's disease or an amyloidosis-associated pathological condition that utilize a novel amyloid imaging tracer for detecting amyloid deposits in a subject suffering from these conditions. In certain embodiments, the invention relates to [N-2[18F]fluoropropyl]-2-(4′-(methylamino)-phenyl)-6-hydroxybenzothiazole (F-18MHT) and dimers thereof.