This invention relates to a novel class of acidic amino acid/dicarboxylic acid derivatives (sulfonic acid/sulfate derivatives of naturally occurring amino acids and their amides) useful as inhibitors of osteoclastogenesis. The invention also provides methods of using the novel class of acidic amino acid/dicarboxylic acid derivatives of the general formula ZOC—(CRR)
m
—COOH, wherein: m=
2, 3
or
4
; Z is OH or NH
2
; one R in the compound is from the group consisting of SO
3
H, OSO
3
H, CH
2
—SO
3
H, CH
2
—OSO
3
H, and NHSO
3
H, and the remaining Rs are H or NH
2
, for inhibition of osteoclastogenesis.
The Synthesis and Thymidylate Synthase Inhibitory Activity of L-.gamma.-L-Linked Dipeptide and L-.gamma.-Amide Analogs of 2-Desamino-2-methyl-N10-propargyl-5,8-dideazafolic acid (ICI 198583)
作者:Graham M. F. Bisset、Vassilios Bavetsias、Timothy J. Thornton、Krzysztof Pawelczak、A. Hilary Calvert、Leslie R. Hughes、Ann L. Jackman
DOI:10.1021/jm00046a014
日期:1994.9
Sixteen gamma-linked dipeptide and four L-Glu-gamma-amide analogues of 2-desamino-2-methyl-N-10-propargyl-5,8-dideazafolic acid (ICI 198583) have been synthesized and evaluated as inhibitors of thymidylate synthase (TS). Z-blocked L-Glu-gamma-L-linked dipeptides and L-Glu-gamma-amides were prepared by condensing alpha-tert-butyl-N-(benzyloxycarbonyl)-L-glutamic acid with the appropriate tert-butyl-protected L-amino acid or amine. The Z group was removed by catalytic hydrogenolysis, and the resulting dipeptides or L-Glu-gamma-amides were condensed with the appropriate pteroic acid analogue trifluoroacetate salt using diethyl cyanophosphoridate as coupling reagent. Deprotection with trifluoroacetic acid in the final step gave the desired quinazoline gamma-linked dipeptides and L-Glu-gamma-amides as their trifluoroacetate salts. Nearly all the dipeptide analogues were potent inhibitors of TS, the best being ICI 198583-gamma-L-2-aminoadipate (IC50 = 2 nM). Several of these dipeptides were found to be susceptible to enzymatic hydrolysis in mice. The quinazoline monocarboxylate L-Glu-gamma-amides, lacking an alpha'-carboxyl group, are less active against TS and L1210 cell growth but are also not susceptible to enzymatic hydrolysis in mice.
CONJUGATES FOR TREATING DISEASES CAUSED BY PSMA EXPRESSING CELLS
申请人:ENDOCYTE, INC.
公开号:US20210154311A1
公开(公告)日:2021-05-27
The invention described herein pertains to the diagnosis, imaging, and/or treatment of pathogenic cell populations. In particular, the invention described herein pertains to the diagnosis, imaging, and/or treatment of diseases caused by PSMA expressing cells, such as prostate cancer cells, using compounds capable of targeting PSMA expressing cells.
CANCER DIAGNOSTIC IMAGING AGENTS
申请人:Technische Universität München
公开号:US20220118120A1
公开(公告)日:2022-04-21
The present invention relates to a ligand-SIFA-chelator conjugate, comprising, within a single molecule three separate moieties: (a) one or more ligands which are capable of binding to PSMA, (b) a silicon-fluoride acceptor (SIFA) moiety which comprises a covalent bond between a silicon atom and a fluorine atom, and (c) one or more chelating groups, containing a chelated nonradioactive cation.
[EN] RADIOLABELED COMPOUNDS TARGETING THE PROSTATE-SPECIFIC MEMBRANE ANTIGEN<br/>[FR] COMPOSÉS RADIOMARQUÉS CIBLANT L'ANTIGÈNE MEMBRANAIRE SPÉCIFIQUE DE LA PROSTATE
申请人:[en]PROVINCIAL HEALTH SERVICES AUTHORITY
公开号:WO2024016071A1
公开(公告)日:2024-01-25
The present disclosure relates to prostate specific membrane antigen (PSMA)-targeting compounds of formula (I) or of a salt or a solvate thereof. The PSMA-targeting compounds of the present disclosure can be useful as imaging agents for PSMA-expressing diseases/conditions.