Mitorubrin
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| Category | Others |
| Catalog number | BBF-05144 |
| CAS | 3403-71-2 |
| Molecular Weight | 382.36 |
| Molecular Formula | C21H18O7 |
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Description
Mitorubrin is a metabolite synthesized by phytotoxic fungi.
Specification
| Synonyms | (-)-Mitorubrin; β-Resorcylic acid, 6-methyl-, ester with 7-hydroxy-7-methyl-3-propenyl-6H-2-benzopyran-6,8(7H)-dione (7CI,8CI) |
| IUPAC Name | [(7R)-7-methyl-6,8-dioxo-3-[(E)-prop-1-enyl]isochromen-7-yl] 2,4-dihydroxy-6-methylbenzoate |
| Canonical SMILES | CC=CC1=CC2=CC(=O)C(C(=O)C2=CO1)(C)OC(=O)C3=C(C=C(C=C3C)O)O |
| InChI | InChI=1S/C21H18O7/c1-4-5-14-7-12-8-17(24)21(3,19(25)15(12)10-27-14)28-20(26)18-11(2)6-13(22)9-16(18)23/h4-10,22-23H,1-3H3/b5-4+/t21-/m1/s1 |
| InChI Key | ZLULUXWJVBHEMS-KTBYTZPXSA-N |
Properties
| Boiling Point | 645.5±55.0°C at 760 mmHg |
| Melting Point | 218°C |
| Density | 1.42±0.1 g/cm3 |
Reference Reading
1. Asperlones A and B, dinaphthalenone derivatives from a mangrove endophytic fungus Aspergillus sp. 16-5C
Ze'en Xiao, Shao'e Lin, Chunbing Tan, Yongjun Lu, Lei He, Xishan Huang, Zhigang She Mar Drugs. 2015 Jan 13;13(1):366-78. doi: 10.3390/md13010366.
Racemic dinaphthalenone derivatives, (±)-asperlone A (1) and (±)-asperlone B (2), and two new azaphilones, 6'-hydroxy-(R)-mitorubrinic acid (3) and purpurquinone D (4), along with four known compounds, (-)-mitorubrinic acid (5), (-)-mitorubrin (6), purpurquinone A (7) and orsellinic acid (8), were isolated from the cultures of Aspergillus sp. 16-5C. The structures were elucidated using comprehensive spectroscopic methods, including 1D and 2D NMR spectra and the structures of 1 further confirmed by single-crystal X-ray diffraction analysis, while the absolute configuration of 3 and 4 were determined by comparing their optical rotation and CD with those of the literature, respectively. Compounds 1, 2 and 6 exhibited potent inhibitory effects against Mycobacterium tuberculosis protein tyrosine phosphatase B (MptpB) with IC50 values of 4.24 ± 0.41, 4.32 ± 0.60 and 3.99 ± 0.34 μM, respectively.
2. [Investigation on secondary metabolites of endophytic fungus Talaromyces purpurogenus hosted in Tylophora ovate]
Jing-Yi Zhao, Zhen Liu, Sen-Feng Sun, Yun-Bao Liu Zhongguo Zhong Yao Za Zhi. 2020 Mar;45(6):1368-1373. doi: 10.19540/j.cnki.cjcmm.20191204.201.
Eight compounds,(R)-2-[5-(methoxycarbonyl)-4-methyl-6-oxo-3,6-dihydro-2H-pyran-2-yl]acetic acid(1),(3S,4R)-3,4-dihydro-3,4-epoxy-5-hydroxynaphthalen-1(2H)-one(2),(-)-mitorubrinol(3),(-)-mitorubrin(4),(±)-asperlone A(5), terreusinone(6), verrucisidinol(7) and cerebroside C(8) were isolated from the endophytic fungus Talaromyces purpurogenus by using various column chromatographic techniques. Their structures were identified by NMR, MS, CD and optical rotation. Compounds 1 and 2 were new compounds. Their anti-diabetic activities in vitro were evaluated, and compound 1 showed moderate inhibitory activity toward XOD at 10 μmol·L~(-1) with the inhibition rate of 69.9%.
3. Hybridorubrins A-D: Azaphilone Heterodimers from Stromata of Hypoxylon fragiforme and Insights into the Biosynthetic Machinery for Azaphilone Diversification
Kevin Becker, Sebastian Pfütze, Eric Kuhnert, Russell J Cox, Marc Stadler, Frank Surup Chemistry. 2021 Jan 18;27(4):1438-1450. doi: 10.1002/chem.202003215. Epub 2020 Dec 10.
The diversity of azaphilones in stromatal extracts of the fungus Hypoxylon fragiforme was investigated and linked to their biosynthetic machineries by using bioinformatics. Nineteen azaphilone-type compounds were isolated and characterized by NMR spectroscopy and mass spectrometry, and their absolute stereoconfigurations were assigned by using Mosher ester analysis and electronic circular dichroism spectroscopy. Four unprecedented bis-azaphilones, named hybridorubrins A-D, were elucidated, in addition to new fragirubrins F and G and various known mitorubrin derivatives. Only the hybridorubrins, which are composed of mitorubrin and fragirubrin moieties, exhibited strong inhibition of Staphylococcus aureus biofilm formation. Analysis of the genome of H. fragiforme revealed the presence of two separate biosynthetic gene clusters (BGCs) hfaza1 and hfaza2 responsible for azaphilone formation. While the hfaza1 BGC likely encodes the assembly of the backbone and addition of fatty acid moieties to yield the (R)-configured series of fragirubrins, the hfaza2 BGC contains the necessary genes to synthesise the widely distributed (S)-mitorubrins. This study is the first example of two distant cross-acting fungal BGCs collaborating to produce two families of azaphilones and bis-azaphilones derived therefrom.
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Bio Calculators
* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2
* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
