Synthesis, pharmacology and pharmacokinetics of 3-(4-Aryl-piperazin-1-ylalkyl)-uracils as uroselective α1A-antagonists
摘要:
Predominance in the urethra and prostate of the alpha(1A)-adrenoceptor subtype, which is believed to be the receptor mediating noradrenaline induced smooth muscle contraction in these tissues, led to the preparation of alpha(1A)-selective antagonists to be tested as uroselective compounds for the treatment of benign prostatic hyperplasia. Thus, a number of selective alpha(1A)-adrenoceptor antagonists were synthesized and assayed in vitro for potency and selectivity. Dog pharmacokinetic parameters of 12 (RO700004) and its metabolite 40 (RO1104253) were established. The relative selectivity of intravenously administered 12, 40 and standard prazosin to inhibit hypogastric nerve stimulation-induced increases in intraurethral prostatic pressure versus phenylephrine-induced increases in diastolic blood pressure in anesthetized dogs was 76, 71 and 0.6, respectively. (C) 2003 Elsevier Science Ltd. All rights reserved.
[EN] ACID CERAMIDASE INHIBITORS AND THEIR USE AS MEDICAMENTS<br/>[FR] INHIBITEURS DE LA CÉRAMIDASE ACIDE ET LEUR UTILISATION COMME MÉDICAMENTS
申请人:FOND ISTITUTO ITALIANO DI TECNOLOGIA
公开号:WO2013178545A1
公开(公告)日:2013-12-05
The present invention concerns, in a first aspect, compounds of Formula I as defined herein, pharmaceutically acceptable salts thereof and pharmaceutical compositions containing such compounds. The present invention also relates to compounds of Formula I for use as acid ceramidase inhibitors, and in the treatment of cancer and other disorders in which modulation of the levels of ceramide is clinically relevant.
Synthesis,<i>In Vitro</i>Cytotoxicity and Radiosensitizing Activity of Novel 3-[(2,4-Dinitrophenylamino)Alkyl] Derivatives of 5-Fluorouracil
作者:Ali Khalaj、Khosrou Abdi、Seyed Nasser Ostad、Mohammad Reza Khoshayand、Navid Lamei、Hasan Ali Nedaie
DOI:10.1111/cbdd.12211
日期:2014.2
Previously, it was reported that 3[3‐(2,4‐dinitrophenylamino)‐propyl]‐5‐fluorouracil 8c unlike its components 5‐fluorouracil (5‐FU) 6 and 2,4‐dinitroaniline 2 in HT‐29 cells under aerobic conditions had no cytotoxicity but showed radiosensitizing activity. In this study several analogues of 8c differing in the number of linking methylene groups were prepared and tested for in vitro cytotoxicity and
[EN] BIOORTHOGONAL METHODS AND COMPOUNDS<br/>[FR] COMPOSÉS ET PROCÉDÉS BIO-ORTHOGONAUX
申请人:UNIV EDINBURGH
公开号:WO2014202994A1
公开(公告)日:2014-12-24
The invention provides a new bioorthogonal deprotection method for preparing heterocyclic compounds by bond cleavage using palladium. The methods have general application in the field of biological synthetic chemistry. Compounds, such as prodrugs, which are useful in such methods are also provided.
Design and synthesis of a β-lactamase activated 5-fluorouracil prodrug
作者:Ryan M. Phelan、Marc Ostermeier、Craig A. Townsend
DOI:10.1016/j.bmcl.2008.12.057
日期:2009.2
An efficient synthesis of a 5-fluorouracil-cephalosporin prodrug is described for use against colorectal and other cancers in antibody and gene-directed therapies. The compound shows stability in aqueous media until specifically activated by β-lactamase (βL). The kinetic parameters of the 5-fluorouracil-cephalosporin conjugate were determined in the presence of Enterobacter cloacae P99 βL (ECl βL)
描述了一种有效合成的 5-氟尿嘧啶-头孢菌素前药,用于在抗体和基因导向疗法中对抗结直肠癌和其他癌症。该化合物在水性介质中表现出稳定性,直到被 β-内酰胺酶 (βL) 特异性激活。5-氟尿嘧啶-头孢菌素偶联物的动力学参数在阴沟肠杆菌P99 βL (ECl βL)存在下测定,显示K m = 95.4 μM 和V max = 3.21 μMol min -1 mg -1。该数据与已报道的相关系统相比具有优势,并且能够在体外和体内测试该前药对抗癌细胞系。
Conformational preferences in the β-peptide oligomers of cis-2-amino-1-fluorocyclobutane-1-carboxylic acid
作者:Ammar Hassoun、Claire M. Grison、Régis Guillot、Thomas Boddaert、David J. Aitken
DOI:10.1039/c4nj01929f
日期:——
These oligomers adopt a regular zig-zag strand-like secondary structure which does not rely on intra-residue 6-ring hydrogen bonds for stability.