@article{d199204e6f104af2b12dab25ea15c866,
title = "Structure elucidation and absolute configuration of metabolites from the soil-derived fungus Dictyosporium digitatum using spectroscopic and computational methods",
abstract = "Following the discovery of a new class of compounds that inhibit the mucosa-associated lymphoid tissue lymphoma translocation 1 (MALT1) protease in a prior study, further chemical investigation of the Dictyosporium digitatum fungus resulted in the identification of 16 additional metabolites, including 12 undescribed compounds (1–12). The constitution and relative configuration of these new molecules were established by comprehensive NMR and HRMS analyses. Their absolute configurations were determined by employing Mosher's ester analysis and TDDFT ECD calculations. Two sesquiterpenes, dictyosporins A (1) and B (2), possess an undescribed eudesmen-type of structural scaffold. The ability of the isolated compounds to inhibit MALT1 proteolytic activity was evaluated, but none of them exhibited significant inhibition.",
keywords = "DFT calculations, Dictyosporiaceae, Dictyosporin, Dictyosporium digitatum, Mosher's ester analysis, Structure elucidation",
author = "Tran, \{Trong D.\} and Wilson, \{Brice A.P.\} and Henrich, \{Curtis J.\} and Wendt, \{Karen L.\} and Jarrod King and Cichewicz, \{Robert H.\} and Stchigel, \{Alberto M.\} and Miller, \{Andrew N.\} and O'Keefe, \{Barry R.\} and Gustafson, \{Kirk R.\}",
note = "Funding Information: We thank H. Bokesch for HRESIMS data collection. This research utilized the computational resources of the NIH HPC Biowulf cluster and it was supported in part by the Intramural Research Program of the NIH, National Cancer Institute, Centre for Cancer Research and with federal funds from the National Cancer Institute, National Institutes of Health, under contract HHSN261200800001 E. The research was also supported in part by a grant from the National Cancer Institute (UO1CA182740). The content of this publication does not necessarily reflect the views or policies of the Department of Health and Human Services, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government. Funding Information: We thank H. Bokesch for HRESIMS data collection. This research utilized the computational resources of the NIH HPC Biowulf cluster and it was supported in part by the Intramural Research Program of the NIH , National Cancer Institute , Centre for Cancer Research and with federal funds from the National Cancer Institute , National Institutes of Health , under contract HHSN261200800001 E . The research was also supported in part by a grant from the National Cancer Institute ( UO1CA182740 ). The content of this publication does not necessarily reflect the views or policies of the Department of Health and Human Services, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government. ",
year = "2020",
month = may,
doi = "10.1016/j.phytochem.2020.112278",
language = "English (US)",
volume = "173",
journal = "Phytochemistry",
issn = "0031-9422",
publisher = "Elsevier Ltd",
}