Synthesis and antibacterial evaluation of phosphonic acid analogues of diaminopimelic acid
摘要:
Diaminopimelic acid is an essential amino acid in the peptidoglycan of Gram-negative bacteria, mycobacteria and some Gram-positive bacteria. It can be used as a target for the development of antibacterial agents. In this article the synthesis of a series of phosphonic acid analogues of this diamino-dicarboxylic acid is described: mono- and diphosphonic acid derivatives as well as their homologues, N-alkyl analogues and some peptidyl derivatives. A phenylphosphinic derivative was also prepared. All the prepared compounds were tested for their antibacterial activity against a series of Gram-positive, Gram-negative and mycobacteria. They were also tested as possible inhibitors of the UDP-MurNAc-L-Ala-gamma-D-Glu: meso-DAP synthetase. No significant biological activity was found.
Catalyst-controlled site-selective methylene C–H lactonization of dicarboxylic acids
作者:Hau Sun Sam Chan、Ji-Min Yang、Jin-Quan Yu
DOI:10.1126/science.abq3048
日期:2022.6.24
and γ-methylene carbon-hydrogen (C-H) bonds of free carboxylic acids is a long-standing challenge. Here we show that, with a pair of palladium catalysts assembled with quinoline-pyridone ligands of different chelate ring sizes, it is possible to perform highly site-selective monolactonization reactions with a wide range of dicarboxylicacids, generating structurally diverse and synthetically useful γ-
游离羧酸的β-和γ-亚甲基碳氢(CH)键的催化剂控制的位点选择性活化是一个长期存在的挑战。在这里,我们表明,通过一对由不同螯合环尺寸的喹啉-吡啶酮配体组装的钯催化剂,可以与多种二羧酸进行高度位点选择性的单内酯化反应,产生结构多样且合成上有用的γ-和δ-内酯通过位点选择性β-或γ-亚甲基CH活化。剩余的羧基可作为进一步合成应用的多功能关键,如从丰富的二羧酸中全合成两种天然产物 myrotheciumone A 和pedicellosine 所证明的那样。
Shcherbakov, V. I.; Ivanov, E. F.; Khorshev, S. Ya., Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, 1991, vol. 21, p. 1549 - 1568
作者:Shcherbakov, V. I.、Ivanov, E. F.、Khorshev, S. Ya.、Feldman, M. S.、Kopytov, E. B.、Konkina, T. N.
DOI:——
日期:——
Oxidation of organic compounds by zinc permanganate
作者:Saul Wolfe、Christopher F. Ingold
DOI:10.1021/ja00364a054
日期:1983.12
Synthesis of stereoisomers of 2,4-diaminoglutaric and 2,5-diaminoadipic acids
作者:V. P. Krasnov、E. A. Zhdanova、M. A. Korolyova、I. M. Bukrina、M. I. Kodess、V. Kh. Kravtsov、V. N. Biyushkin
DOI:10.1007/bf02494371
日期:1997.2
Stereoisomers of 2,4-diaminoglutaric and 2,5-diaminoadipic acids were synthesized from glutamic and 2-aminoadipic acids, respectively. The stereochemistry of the products was established by IH NMR spectroscopy and X-ray analysis.
WOLFE, S.;INGOLD, CH. F., J. AMER. CHEM. SOC., 1983, 105, N 26, 7755-7757