Results 1 to 10 of about 234,776 (300)

Green extraction of puromycin-based antibiotics from Streptomyces albofaciens (MS38) for sustainable biopharmaceutical applications

Frontiers in Chemistry
Background: Microbial secondary metabolites have shown promise as a source of novel antimicrobial agents. In this study, we aimed to isolate, characterize, and evaluate the antimicrobial activity of compound from a novel Streptomyces albofaciens strain ...
Neha Singh, Neha Singh, Sandip Patil, Sandip Patil, Mohd. Shahnawaz, Vibhuti Rai, Abhinandan Patil, C. K. M. Tripathi, Feiqiu Wen, Shaowei Dong, Defeng Cai   +10 more
doaj   +1 more source

A Minor Dihydropyran Apocarotenoid from Mated Cultures of Blakeslea trispora

Molecules, 2012
The heterocyclic C15 apocarotenoid 1 was isolated from mated cultures of the strains F986 (+) and F921 (−) of Blakeslea trispora. This new compound formed during sexual interaction is a minor constituent of the culture media and its structure ...
Jesús F. Arteaga, Pilar Artega, M. Mar Herrador, Alejandro F. Barrero, José-Antonio González   +4 more
doaj   +1 more source

Synthesis of Alkaline Earth Diazenides MAEN2 (MAE = Ca, Sr, Ba) by Controlled Thermal Decomposition of Azides under High Pressure [PDF]

, 2012
The alkaline earth diazenides MAEN2 with MAE = Ca, Sr and Ba were synthesized by a novel synthetic approach, namely, a controlled decomposition of the corresponding azides in a multianvil press at highpressure/ high-temperature conditions.
Andersen O. K., Auffermann G., Auffermann G., Auffermann G., Auffermann G., Bergmann J., Chen W., Chen Z. W., Chhowalla M., Coelho A. A., Crowhurst J. C., Crowhurst J. C., Dronskowski R., Du X. P., Ehrlich P., Fair H. D., Frierson W. J., Gregoryanz E., Huppertz H., Jepsen O., Jhi S. H., Kawai N., Lambrecht W. R. L., Leineweber A., Maruyama T., McMillan P. F., Montoya J. A., Prots Y., Rainer Frankovsky, Remy-Gennete P., Rubie D. C., Römer S. R., Sebastian B. Schneider, Skriver H. L., Vajenine G. V., von Appen J., Walker D., Walker D., Wang H., Weidlein J., Wessel M., Wessel M., Wessel M., Wolfgang Schnick, Wu Z. G., Yamanaka S., Young A. F., Yu R., Zerr A.   +48 more
core   +1 more source

Di-μ-bromido-bis-[(diethyl ether-κO)(2,4,6-trimethylphenyl)magnesium] : the mesityl Grignard reagent [PDF]

, 2013
The crystal structure of the title compound, [Mg2Br2(C9H11)2(C4H10O)2], features a centrosymmetric two-centre magnesium complex with half a mol-ecule in the asymmetric unit. The Mg atom is in a considerably distorted Br2CO coordination.
Bolte, Michael, Lerner, Hans-Wolfram, Seven, Ömer   +2 more
core   +1 more source

Residual Dipolar Couplings in Structure Determination of Natural Products

Natural Products and Bioprospecting, 2018
The determination of natural products stereochemistry remains a formidable task. Residual dipolar couplings (RDCs) induced by anisotropic media are a powerful tool for determination of the stereochemistry of organic molecule in solution. This review will
Gao-Wei Li, Han Liu, Feng Qiu, Xiao-Juan Wang, Xin-Xiang Lei   +4 more
doaj   +1 more source

Further nomenclature and chemical notes on Pseudocyphellaria in New Zealand [PDF]

, 1983
Nomenclatural notes on the following taxa are provided: Pseudocyphellaria billardierii, P. carpoloma, P. faveolata, P. rufovirescens and P. subvariabilis. Detailed chemical profiles are given for all described species of Pseudocyphellaria in New Zealand.
Galloway, D.J., James, P.W., Wilkins, Alistair L.   +2 more
core   +2 more sources

Pyrrolidine, Piperazine, and Diazinane Alkaloids from the Marine Bacterium Strain Vibrio ruber ZXR-93

Molecules
Four new alkaloids, vibripyrrolidine A (1), vibripiperazine A (2), and vibridiazinane A, B (3, 4), comprising one pyrrolidine, one piperazine, and two diazinane alkaloids, along with two known analogs (5, 6), were isolated from the marine bacterium ...
Xiangru Zha, Yang Li, Huange Zhao, Yinfeng Tan, Songlin Zhou   +4 more
doaj   +1 more source

Xanthones from Calophyllum inophyllum [PDF]

, 2009
The roots of Calophyllum inophyllum (Guttiferae), furnished six xanthones which are rasilixanthone (1), 1,3,5-trihydroxy-2- methoxy xanthone (2), caloxanthone A (3), pyranojacareubin (4), caloxanthone B (5) and tovopyrifolin (6), Structural elucidations ...
Ee, Gwendoline Cheng Lian, Jong, Vivien Yi Mian, Kua, Audrey Siew May, Md. Sukari, Mohd Aspollah, Rahmani, Mawardi   +4 more
core  

Current and Future Perspectives on the Structural Identification of Small Molecules in Biological Systems

Metabolites, 2016
Although significant advances have been made in recent years, the structural elucidation of small molecules continues to remain a challenging issue for metabolite profiling.
Daniel A. Dias, Oliver A.H. Jones, David J. Beale, Berin A. Boughton, Devin Benheim, Konstantinos A. Kouremenos, Jean-Luc Wolfender, David S. Wishart   +7 more
doaj   +1 more source

Cytotoxic Terpenoids from the Roots of Dracocephalum taliense

Molecules, 2017
A chemical investigation of methanol extract from the roots of Dracocephalum taliense led to the isolation of a new aromatic abietane diterpenoid, 12-methoxy-18-hydroxy-sugiol (1), and one highly-oxygenated ursane triterpenoid, 2α,3α-dihydroxy-11α,12α ...
Yanyan Deng, Juan Hua, Wenjia Wang, Zhonglang Zhan, Anqi Wang, Shihong Luo   +5 more
doaj   +1 more source