The complete assignments of 1H and 13C NMR data for a series of synthesized diosgenyl saponin analogs are described, viz. diosgenyl b-D-glucopyranoside (1), diosgenyl a-L-rhamnopyranosyl- 7). The assignments were achieved using homo-and heteronuclear two-dimensional NMR techniques.
Complete 1H and 13C NMR Assignments of the Oligosaccharide Antibiotic Sch 27899
โ Scribed by Tze-Ming Chan; Rebecca M. Osterman; James B. Morton; Ashit K. Ganguly
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 219 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0749-1581
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โฆ Synopsis
The complete assignments of 1H and 13C data for Sch 27899 are described. The compound is an oligosaccharide antibiotic belonging to the class everninomicin. It has a molecular mass of 1629. The assignments are based on 2D HMQC, HMQC-TOCSY and HMBC experiments.
๐ SIMILAR VOLUMES
In addition to 1D NMR methods and 2D shift-correlated NMR techniques (COSY and HETCOR), spin-spin simulation and MMX calculations, to obtain the minimum energy conformation structure, were used for the complete 1 H and 13 C NMR assignments of stephalic acid.
The proton and carbon chemical shifts and the coupling constants nJ(H,H) and nJ(C,H) of thioquinanthrene and isothioquinanthrene were completely assigned from COSY, HETCOR and INEPT studies. 1998 ( John Wiley & Sons, Ltd.