New insights into molecular recognition of 1,1-bisphosphonic acids by farnesyl diphosphate synthase
摘要:
As part of our project pointed at the search of new antiparasitic agents against American trypanosomiasis (Chagas disease) and toxoplasmosis a series of 2-alkylaminoethyl-1-hydroxy-1,1-bisphosphonic acids has been designed, synthesized and biologically evaluated against the etiologic agents of these parasitic diseases, Trypanosoma cruzi and Toxoplasma gondii, respectively, and also towards their target enzymes, T. cruzi and T. gondii farnesyl pyrophosphate synthase (FPPS), respectively. Surprisingly, while most pharmacologically active bisphosphonates have a hydroxyl group at the C-1 position, the additional presence of an amino group at C-3 resulted in decreased activity towards either T. cruzi cells or TcFPPS. Density functional theory calculations justify this unexpected behavior. Although these compounds were devoid of activity against T. cruzi cells and TcFPPS, they were efficient growth inhibitors of tachyzoites of T. gondii. This activity was associated with a potent inhibition of the enzymatic activity of TgFPPS. Compound 28 arises as a main example of this family of compounds exhibiting an ED50 value of 4.7 mu M against tachyzoites of T. gondii and an IC50 of 0.051 mu M against TgFPPS. (C) 2013 Elsevier Ltd. All rights reserved.
[EN] ARYL GLYCINAMIDE DERIVATIVES AND THEIR USE AS NK1 ANTAGONISTS AND SEROTONIN REUPTAKE INHIBITHORS<br/>[FR] DERIVES D'ARYLE GLYCINAMIDE ET UTILISATION EN TANT QU'ANTAGONISTES DE NK1 ET EN TANT QU'INHIBITEURS DU RECAPTAGE DE SEROTONINE
申请人:ASTRAZENECA AB
公开号:WO2005100325A1
公开(公告)日:2005-10-27
Compounds of the following Formula (I) wherein R1 and R2 are independently selected from alkyl or alkenyl or from a heterocyclic ring together with the N to which they are bound, n is 0-2, Ar1 is (substituted) phenyl and Ar1 is (substituted) phenyl, naphthyl or tetralin, further as defined in the specification, in vivo-hydrolysable precursors and pharmaceutically acceptable salts thereof, the use in therapy and pharmaceutical compositions and methods of treatment using the same. The compounds are neurokinin 1 (NK1) receptor antagonists and/or serotonin reuptake inhibitors, with medical indications for depression, anxiety disorders and other conditions.
[EN] AZOLOPYRIMIDINE FOR THE TREATMENT OF CANCER-RELATED DISORDERS<br/>[FR] AZOLOPYRIMIDINE POUR LE TRAITEMENT DE TROUBLES LIÉS AU CANCER
申请人:ARCUS BIOSCIENCES INC
公开号:WO2018136700A1
公开(公告)日:2018-07-26
Compound that is an inhibitor of at least one of the A2A and A2B adenosine receptors, and compositions containing the compound and methods for synthesizing the compound, are described herein. The use of such compound and compositions for the treatment of a diverse array of diseases, disorders, and conditions, including cancer- and immune-related disorders that are mediated, at least in part, by the adenosine A2A receptor and/or the adenosine A2B receptor.
The conformationally restricted, spatially defined macrocyclic ring system of formula (I) is constituted by three distinct molecular parts: Template A, conformation Modulator B and Bridge C. Macrocycles described by this ring system I are readily manufactured by parallel synthesis or combinatorial chemistry in solution or on solid phase. They are designed to interact with a variety of specific biological target classes, examples being agonistic or antagonistic activity on G-protein coupled receptors (GPCRs), inhibitory activity on enzymes or antimicrobial activity. In particular, these macrocycles show inhibitory activity on endothelin converting enzyme of subtype 1 (ECE-1) and/or the cysteine protease cathepsin S (CatS), and/or act as antagonists of the oxytocin (OT) receptor, thyrotropin-releasing hormone (TRH) receptor and/or leukotriene B4 (LTB4) receptor, and/or as agonists of the bombesin 3 (BB3) receptor, and/or show antimicrobial activity against at least one bacterial strain. Thus they are showing great potential as medicaments for a variety of diseases.
This invention relates to imaging nanoprobe and methods of use thereof. Specifically, the invention relates to long-lived oxygen-insensitive nanoprobe comprising a lumisescent moeity with a long excited state lifetime, embedded in a dendrimer, wherein said dendrimer is internally cross-linked and has hydrophilic peripheral layer.
A compound represented by the following formula (I′)
wherein X
1
is a methylene group, an ethylene group, a trimethylene group or a vinylene group, X
2
is a divalent group represented by the following formula A or B,
Y is an ethylene group or a vinylene group, m and n are each an integer of 0 to 7, which satisfy m+n=0 to 8, R1 and R2 are each independently a hydrogen atom, a methyl group or an ethyl group, provided that when X
1
is a methylene group, then X
2
is not a divalent group represented by the formula A, and when X
1
is a vinylene group, then X
2
is not a divalent group represented by the formula A. The compound is a stable capsinoid derivative, and is useful as an active ingredient of an external blood circulation enhancer or a cosmetic composition, a pharmaceutical composition, or a food composition.