The reaction of readily available optically active Si-tethered tris(malonates) with C60 gave easily separable diastereoisomers differing by the absolute configuration of the inherently chiral addition pattern on the fullerene core. The absolute configuration of the e,e,e addition pattern has been unambiguously determined using X-ray crystal structure analysis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c3cc41409d | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
()-Glucosciadopitysin, a New Biflavonoid Glycoside from the Leaves of and Osteogenic Activity of Bioflavonoids.
Plants (Basel)
January 2025
School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea.
The leaves of have been used in treating freckles and effectively reducing cough and sputum in folk medicines. Recently, investigations into the correlation between ginkgo leaves and the proliferative activity of osteogenic differentiation have been conducted. However, bioactive compounds that enhance osteogenesis or exhibit osteoporosis prevention from have not been fully identified.
View Article and Find Full Text PDFAntimicrobial Potential of Secalonic Acids from Arctic-Derived INA 01369.
Antibiotics (Basel)
January 2025
Laboratory for Taxonomic Study and Collection of Cultures of Microorganisms, Gause Institute of New Antibiotics, St. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia.
In this study, two compounds have been isolated from the Arctic-derived fungus INA 13460. Structural elucidation, performed using 2D NMR and HR-ESIMS data, has identified the compounds as stereoisomers of secalonic acids, dimeric tetrahydroxanthones. The absolute configurations of these stereoisomers have been determined through conformational NMR analysis and circular dichroism spectroscopy.
View Article and Find Full Text PDFCurvularin derivatives from hydrothermal vent sediment fungus Penicillium sp. HL-50 guided by molecular networking and their anti-inflammatory activity.
Chin J Nat Med
January 2025
Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drug Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China. Electronic address:
Guided by molecular networking, nine novel curvularin derivatives (1-9) and 16 known analogs (10-25) were isolated from the hydrothermal vent sediment fungus Penicillium sp. HL-50. Notably, compounds 5-7 represented a hybrid of curvularin and purine.
View Article and Find Full Text PDFAmoenucles A-F, novel nucleoside derivatives with TNF-α inhibitory activities from Aspergillus amoenus TJ507.
Chin J Nat Med
January 2025
Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. Electronic address:
Amoenucles A-F (1-6), six previously undescribed nucleoside derivatives, and two known analogs (7 and 8) were isolated from the culture of Aspergillus amoenus TJ507. Their structures were elucidated through spectroscopic analysis, single-crystal X-ray crystallography, and chemical reactions. Notably, 3 and 4 represent the first reported instances of nucleosides with an attached pyrrole moiety.
View Article and Find Full Text PDFHalogenated meroterpenoids with antifungal activities from the Deep-Sea-Derived fungus Acremonium sclerotigenum guided by the genomic and OSMAC strategy.
Bioorg Chem
January 2025
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:
Thirteen new meroterpenoids, acremorins A-M (1, 2, 4, 6, 7 and 9-16), together with three known analogues (3, 5 and 8) were isolated from the deep-sea-derived fungus Acremonium sclerotigenum LW14 guided by the genomic and OSMAC strategy. Their structures and absolute configurations were established by extensive spectroscopic analysis, electronic circular dichroism (ECD) calculations, Rh(OCOCF)-induced ECD experiments, and a single-crystal X-ray diffraction experiment. Compounds 2, 4, 6 and 9 represent the rare brominated ascochlorins.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!