Phytochemical investigation of the CH2Cl2-soluble fraction of the EtOH extract of red mold rice fermented with the white mutant of the fungus Monascus argentinensis BCRC 33998 (Eurotiaceae) led to the isolation and characterization of a new diterpenoid, monascusargentinoic acid (1). The structure of the new compound was elucidated by analysis of its spectroscopic data, including MS, 1D, and 2D NMR experiments, and comparison with literature data of known compounds.
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Acknowledgment
This work was kindly supported by the Food Industry Research and Development Institute and supported by Ministry of Science and Technology, R.O.C. (MOST-108-2320-B-080-002-). The authors thank Senior Technician Mrs. Chyi Jia Wang of the Center for Resources, Research, and Development of Kaohsiung Medical University for measuring the 2D NMR data. They also thank Dr. Ni Ni Naing, Librarian, Universities’ Central Library (UCL) (Lower Myanmar) and Daw May Kha Lwin, Librarian, University of Mandalay Library (Upper Myanmar). We are very grateful to the two teachers for providing valuable academic information.
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Published in Khimiya Prirodnykh Soedinenii, No. 2, March–April, 2022, pp. 250–251.
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Chen, JJ., Cheng, MJ., Wu, MD. et al. New Metabolite from the Fungus Monascus argentinensis BCRC 33998. Chem Nat Compd 58, 287–289 (2022). https://doi.org/10.1007/s10600-022-03661-6
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DOI: https://doi.org/10.1007/s10600-022-03661-6