Structure–activity relationship of phosmidosine: importance of the 7,8-dihydro-8-oxoadenosine residue for antitumor activity
摘要:
To study the structure-activity relationship of phosmidosine, a variety of phosmidosine derivatives 9a-g were synthesized by condensation of N-diisopropyl N'-(N-tritylprolyl)phosphorodiamidite 6 with appropriately protected nucleoside derivatives 7a-g. As the result, replacement of the 7,8-diliydro-8-oxoadenine base by adenine and 6-N-acetyladenine did not affect the antitumor activity. However, phosmidosine derivatives containing uracil, cytosine, and guanine in place of the 7,8-dibydro-8-oxoadenine base did not show significant activity. A plausible explanation for the selective expression of phosmidosine compared with that of phosmidosine analogs having other amino acids in place of proline is also discussed. These results suggest that phosmidosine serves as an inhibitor of prolyl adenosine 5'-phosphate (prolyl-AMP) to inhibit the peptide synthesis in cancer-related cells. (C) 2004 Elsevier Ltd. All rights reserved.
Substituent-dependent coordination modes of 1-methyl-5-R-tetrazoles in their cupric chloride complexes
作者:Sergei V. Voitekhovich、Alexander S. Lyakhov、Vadim E. Matulis、Ludmila S. Ivashkevich、Oleg A. Ivashkevich
DOI:10.1016/j.poly.2019.01.009
日期:2019.4
Abstract A series of cupricchloridecomplexes with 1-methyl-5-R-tetrazole ligands, where R = NH2, t-Bu, Ph, MeS, CH CH2, MeSO2, were synthesized by interaction of CuCl2·2H2O with the above ligands LNH2, LtBu, LPh, LMeS, LVin, and LMeSO2, respectively. The obtained complexes [Cu(LNH2)3Cl2]·H2O (1), [Cu(LtBu)2Cl2] (2), [Cu(LPh)2Cl2] (3), [Cu(LMeS)2Cl2] (4), [Cu(LVin)Cl2]n (5), and [Cu(LMeSO2)(H2O)Cl2]n
The development of a complementary pathway for the synthesis of aliskiren
作者:Le-Le Li、Jin-Ying Ding、Lian-Xun Gao、Fu-She Han
DOI:10.1039/c4ob01963f
日期:——
The synthesis of aliskiren (1), a recently marketed drug for the treatment of hypertension, is presented. The focus of our synthetic effort is to develop an efficient pathway for the synthesis of (2S,7R,E)-2-isopropyl-7-(4-methoxy-3-(3-methoxypropoxy) benzyl)-N,N,8-trimethylnon-4-enamide (2a), which has been used as the advanced intermediate toward aliskiren. After an extensive investigation of three
1-Substituted-5-[(3,5-dinitrobenzyl)sulfanyl]-1H-tetrazoles and their isosteric analogs: A new class of selective antitubercular agents active against drug-susceptible and multidrug-resistant mycobacteria
In this work, a newclass of highly potent antituberculosis agents, 1-substituted-5-[(3,5-dinitrobenzyl)sulfanyl]-1H-tetrazoles and their oxa and selanyl analogs, is described. The minimal inhibitory concentration (MIC) values reached 1 μM (0.36–0.44 μg/mL) against Mycobacterium tuberculosis CNCTC My 331/88 and 0.25–1 μM against six multidrug-resistant clinically isolated strains of M. tuberculosis
[EN] 4-PIPERAZINYL-PYRIMIDINE COMPOUNDS SUITABLE FOR TREATING DISORDERS THAT RESPOND TO MODULATION OF THE DOPAMINE D3 RECEPTOR<br/>[FR] COMPOSÉS DE 4-PIPÉRAZINYLPYRIMIDINE CONVENANT POUR TRAITER DES TROUBLES QUI RÉPONDENT À UNE MODULATION DU RÉCEPTEUR D3 DE LA DOPAMINE
申请人:ABBOTT GMBH & CO KG
公开号:WO2006015842A1
公开(公告)日:2006-02-16
The present invention relates to novel 4-piperazinylpyrimidine compounds. The compounds possess valuable therapeutic properties and are suitable, in particular, for treating diseases that respond to modulation of the dopamine D3 receptor. The 4 piperzinylpyrimidine compounds have the general formula (I), wherein Ar, X, A, R1 and R1a are as defined in the claims.