Taxonomic group: fungi / Ascomycota
(Phylum: Ascomycota)
Organ / tissue: thallus
The structure was elucidated in this paperNCBI PubMed ID: 10963458Publication DOI: 10.1016/S0031-9422(00)00147-3Journal NLM ID: 0151434Publisher: Elsevier
Correspondence: rezanka
biomed.cas.cz
Institutions: Institute of Microbiology, Academy of Sciences of Czech Republic, Prague, Czech Republic, Institute of Ecology of the Volga River Basin of the Russian Academy of Sciences, Togliatti, Russia
Eleven compounds isolated from the extract of the Central Asian lichens comprised eight new glycosides having murolic, protoconstipatic and allo-murolic acids, as the aglycones and a saccharide moiety linked at C-18 made up of one or two sugars (glucose and apiose or rhamnose or xylose or arabinose). The structures were elucidated by using extensive spectroscopic analysis (1D and 2D NMR, MS, IR, UV and CD) and chemical methods.
glycosides, lichens, murolic acid, glucore, Central Asia, aglycones
Structure type: oligomer ; 663.7814 [M+H]+, 661 [M-H]-
C
32H
54O
14Location inside paper: fig.2, compound 11, table 4, table 5
Compound class: glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
Methods: 13C NMR, 1H NMR, gel filtration, IR, FAB-MS, TLC, acid hydrolysis, GC, HPLC, UV, extraction, optical rotation measurement, CD, melting point determination, enzymatic assay, HR-FAB-MS, LR-FAB-MS
Comments, role: symbiotic organisms
Related record ID(s): 45480, 45481, 45482, 45483, 45484, 45485, 45486, 45487
NCBI Taxonomy refs (TaxIDs): 371072,
88742
Show glycosyltransferases
[as TSV]
13C NMR data:
Linkage Residue C1 C2 C3 C4 C5 C6
18,6 bDApif 108.9 76.2 79.4 74.1 64.3
18 bDGlcp 97.9 75.7 76.6 70.1 73.8 63.4
Subst
1H NMR data:
Linkage Residue H1 H2 H3 H4 H5 H6
18,6 bDApif 5.36 4.76 - 4.35-4.39 4.35-4.67
18 bDGlcp 5.22 4.35 4.33 4.01 4.17 4.06-4.36
Subst
1H/13C HSQC data:
Linkage Residue C1/H1 C2/H2 C3/H3 C4/H4 C5/H5 C6/H6
18,6 bDApif 108.9/5.36 76.2/4.76 74.1/4.35-4.39 64.3/4.35-4.67
18 bDGlcp 97.9/5.22 75.7/4.35 76.6/4.33 70.1/4.01 73.8/4.17 63.4/4.06-4.36
Subst
1H NMR data:
| Linkage | Residue | H1 | H2 | H3 | H4 | H5 | H6 |
|---|
| 18,6 | bDApif | 5.36 | 4.76 |
| 4.35
4.39 | 4.35
4.67 | |
| 18 | bDGlcp | 5.22 | 4.35 | 4.33 | 4.01 | 4.17 | 4.06
4.36 |
| | Subst | |
|
13C NMR data:
| Linkage | Residue | C1 | C2 | C3 | C4 | C5 | C6 |
|---|
| 18,6 | bDApif | 108.9 | 76.2 | 79.4 | 74.1 | 64.3 | |
| 18 | bDGlcp | 97.9 | 75.7 | 76.6 | 70.1 | 73.8 | 63.4 |
| | Subst | |
|
There is only one chemically distinct structure:
Found 
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(later renamed to: Pleopsidium gobiense)