Dodecanoic acid derivatives: Synthesis, antimicrobial evaluation and development of one-target and multi-target QSAR models
摘要:
In this study a series of dodecanoic acid derivatives (1-30) were synthesized and evaluated for in vitro antimicrobial activity against the panel of Gram positive, Gram negative bacterial and fungal strains. 4-Nitro phenyl dodecanoate (4) and quinolin-8-yl dodecanoate (5) emerged as most effective antibacterial agents, and 1-(4-benzylpiperazin-1-yl) dodecan-1-one (15) was found to be the most effective antifungal agent amongst the synthesized dodecanoic acid derivatives. Quantitative structure activity relationship (QSAR) studies performed by the development of one-target and multi-target models indicated that multi-target model was effective in describing the antimicrobial activity of dodecanoic acid derivatives as well demonstrated the importance of topological parameter, zero-order molecular connectivity index ((0)chi).
Chimie des sucres sans groupements protecteurs - I - esterification regioselective de l'hydroxyle anomere du lactose, du maltose et du glucose
作者:Daniel Plusquellec、Fabienne Roulleau、Francoise Bertho、Martine Lefeuvre、Eric Brown
DOI:10.1016/0040-4020(86)80009-6
日期:1986.1
Et3N, afforded high yields of the corresponding reactive amides –, -thioesters – and aryl esters – and –, respectively. The esters -, - and – reacted with excess β-lactose in pyridine, to give the corresponding β-esters, – resulting from esterification of the anomeric hydroxyl of the sugar. The amides , – gave the α-lactosyl esters ,–. The amide and the esters ,, reacted with β-maltose, thus affording